{"title":"Longan Cards - Actuator","description":null,"products":[{"product_id":"1012002","title":"Buzzer Card","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-0ac61f8580c24fb5ec130d0efb49c731f0a020555f5c324cb69c9fdee5a0278d.png?v=1789434263\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eBuzzer is a very simple sound making device, emitting \"beep\" sound through driving internal sound structure with current. Because of its low cost and stable performance, buzzer is widely used in electronic products as an operation prompt. You will often hear a beep when using a printer, phone, timer, or alarm.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eThe tone of buzzer is fixed. Howerer the frequency of sound can be changed to get different beeps by adjusting the input signal. In this way, you can turn a full melody into codes and make the buzzer sing. ↓\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-03fd26cc56f3cc5c19eb6e459dff05a692febb3168fbc3abc06ad5aa5321da36.jpg?v=1789434268\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eBuzzer Card allows you to make sounds and music, or alerts when something interesting happens.It works by making use of a single I\/O pins on a Carduino.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003chr\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eSpec:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cdiv\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eSmall SMD buzzer\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eSupports ADC\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eTwo way switch\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eLED indicator\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eI2C and UART test point\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003e\u003cspan\u003eConnection: Goldfinger \/ Cable\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eDimension: 40.5 x 33 mm\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003chr\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eReferences:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/docs.longan-labs.cc\/1012002\/\" target=\"_blank\"\u003eHow to Use\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003ePinout:\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-62908db678f1882bbc83c1cd716fc026a6059515e6d950671ca8d065ea28bf9d.png?v=1789434227\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cstyle type=\"text\/css\" xml=\"space\"\u003e\u003c!--\np.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'}\nspan.s1 {font: 12.0px '.PingFang SC'}\n--\u003e\u003c\/style\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003cstrong\u003eLongan Cards:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003eL\u003cspan\u003eongan Cards is a unique \u003c\/span\u003e\u003cstrong\u003eopen-source development platform\u003c\/strong\u003e\u003cspan\u003e designed by Longan Labs. As a plug and play development tool, Longan Cards allows you to quickly build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards system\u003c\/span\u003e.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-9b76fb10ba24e8bc5af37eff51bb51f602bd282328d38915024c673bcc77f1f9.png?v=1789434232\" alt=\"\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards system consists of \u003cstrong\u003eCards and Boards\u003c\/strong\u003e. There are many gold finger antennas on Card and several gold finger sockets on Board. They are combined together through sockets interpolation, which is intuitive and easy to use. With this unified and flexible interface, you can realize a variety of ideas. Many more Boards with different themes would luanch to help people explore more fun.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-526bb3f8dac10feec33e032ce1794229f06c03c30f987200061aec6139281c70.png?v=1789434241\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards modules are classified into many types. Firstly, \u003cstrong\u003ethe main control cards\u003c\/strong\u003e which are the heart of Cards system, run the code and take charge of the exchange of data between modules. Besides Carduino, you can also use MicroBit, Arduino and other development board through connection board. \u003cstrong\u003eThe sensor cards\u003c\/strong\u003e can detect data of surrounding such as temperature and air pressure, etc. \u003cstrong\u003eThe inputs cards\u003c\/strong\u003e allows you to do some operations, such as buttons, knobs, etc. \u003cstrong\u003eThe output cards\u003c\/strong\u003e give feedback in various forms, such as buzzers, motor drives, etc. \u003cstrong\u003eThe communication cards\u003c\/strong\u003e can transmit data in many ways, such as Bluetooth and 4G network. \u003cstrong\u003eThe power cards\u003c\/strong\u003e supply power for electronic projects, including batteries, DC, etc. And \u003cstrong\u003eother cards\u003c\/strong\u003e, mainly do some auxiliary work, such as expansion, code downloading, etc.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-c8d221ef6443805fd9ecb10dac268c79ea7d186ccc1eff07110575ee9ceb56c9.png?v=1789434246\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e↑ STEM is an acronym for \u003cstrong\u003escience\u003c\/strong\u003e,\u003cstrong\u003e technology\u003c\/strong\u003e,\u003cstrong\u003e engineering\u003c\/strong\u003e, and\u003cstrong\u003e math\u003c\/strong\u003e. STEM education began in the United States in the 1990s. It is an interdisciplinary teaching method that combines STEM content and real life situations, which helps stimulate students’ original curiosity and thirst for knowledge and novelty. Longan Cards contains dozens of modules, involving a wide range of knowledge in the process of use, including electronic circuit, mechanical structurenature, programming, science of nature, daily wisdom, and humanities, etc. It is a powerful tool for STEM education at fields of electronic prototyping, science experimentation and DIY project.\u003c\/span\u003e\u003c\/p\u003e","brand":"Longan Labs","offers":[{"title":"Default Title","offer_id":55012253434222,"sku":"1012002","price":24.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/1012002-1.jpg?v=1789355768"},{"product_id":"1014001","title":"OLED Display Card","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-9dba587092a1207c06a4d6b592151a4c5dc98266fc6691be6e562f7fe95b47aa.png?v=1789434297\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eOLED, organic light emittIng diode. It works the way of stimulating organic semiconductor luminescent materials with an electric current, passing through complex particle motions, and finally emitting visible light. Tens of thousands of oleds do their job according to the input signal, and finally form a complete picture.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eOLED is divided into monochrome, multi-color and colorful. OLED Display Card is the simplest basic monochrome type. With the display screen, you can show information and achive a variety of visual creativity, such as temperature, dialogue, and dynamic emoji.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eOLED Display Card features \u003cstrong\u003eUG-2864KSWLG01\u003c\/strong\u003e folding type OELD module which provides 128x64 monochrome pixels. The OLED card uses SPI protocol to communicate with the Carduinol.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eLongan Cards is a unique open source development platform designed by Longan Labs. As a plug and play development platform, Longan Cards allows you to quicky build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards platform.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eSpec:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cdiv\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eInput: 5V\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eResolution: 128x64\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eSupports SPI interface\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eDiagonal Screen Size：1.30\"\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eColor Depth：Monochrome (White)\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003e\u003cspan\u003eConnection: Goldfinger \/ Cable\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eDimension: 40.5 x 33 x 1.2 mm\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003chr\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eReferences:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/docs.longan-labs.cc\/1014001\/\" target=\"_blank\"\u003eHow to Use\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003ePinout:\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-62908db678f1882bbc83c1cd716fc026a6059515e6d950671ca8d065ea28bf9d.png?v=1789434227\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cstyle type=\"text\/css\" xml=\"space\"\u003e\u003c!--\np.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'}\nspan.s1 {font: 12.0px '.PingFang SC'}\n--\u003e\u003c\/style\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003cstrong\u003eLongan Cards:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003eL\u003cspan\u003eongan Cards is a unique \u003c\/span\u003e\u003cstrong\u003eopen-source development platform\u003c\/strong\u003e\u003cspan\u003e designed by Longan Labs. As a plug and play development tool, Longan Cards allows you to quickly build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards system\u003c\/span\u003e.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-9b76fb10ba24e8bc5af37eff51bb51f602bd282328d38915024c673bcc77f1f9.png?v=1789434232\" alt=\"\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards system consists of \u003cstrong\u003eCards and Boards\u003c\/strong\u003e. There are many gold finger antennas on Card and several gold finger sockets on Board. They are combined together through sockets interpolation, which is intuitive and easy to use. With this unified and flexible interface, you can realize a variety of ideas. Many more Boards with different themes would luanch to help people explore more fun.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-526bb3f8dac10feec33e032ce1794229f06c03c30f987200061aec6139281c70.png?v=1789434241\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards modules are classified into many types. Firstly, \u003cstrong\u003ethe main control cards\u003c\/strong\u003e which are the heart of Cards system, run the code and take charge of the exchange of data between modules. Besides Carduino, you can also use MicroBit, Arduino and other development board through connection board. \u003cstrong\u003eThe sensor cards\u003c\/strong\u003e can detect data of surrounding such as temperature and air pressure, etc. \u003cstrong\u003eThe inputs cards\u003c\/strong\u003e allows you to do some operations, such as buttons, knobs, etc. \u003cstrong\u003eThe output cards\u003c\/strong\u003e give feedback in various forms, such as buzzers, motor drives, etc. \u003cstrong\u003eThe communication cards\u003c\/strong\u003e can transmit data in many ways, such as Bluetooth and 4G network. \u003cstrong\u003eThe power cards\u003c\/strong\u003e supply power for electronic projects, including batteries, DC, etc. And \u003cstrong\u003eother cards\u003c\/strong\u003e, mainly do some auxiliary work, such as expansion, code downloading, etc.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-c8d221ef6443805fd9ecb10dac268c79ea7d186ccc1eff07110575ee9ceb56c9.png?v=1789434246\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e↑ STEM is an acronym for \u003cstrong\u003escience\u003c\/strong\u003e,\u003cstrong\u003e technology\u003c\/strong\u003e,\u003cstrong\u003e engineering\u003c\/strong\u003e, and\u003cstrong\u003e math\u003c\/strong\u003e. STEM education began in the United States in the 1990s. It is an interdisciplinary teaching method that combines STEM content and real life situations, which helps stimulate students’ original curiosity and thirst for knowledge and novelty. Longan Cards contains dozens of modules, involving a wide range of knowledge in the process of use, including electronic circuit, mechanical structurenature, programming, science of nature, daily wisdom, and humanities, etc. It is a powerful tool for STEM education at fields of electronic prototyping, science experimentation and DIY project.\u003c\/span\u003e\u003c\/p\u003e","brand":"Longan Labs","offers":[{"title":"Default Title","offer_id":55012253565294,"sku":"1014001","price":29.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/1014001-1_1.jpg?v=1789355812"},{"product_id":"1011012","title":"RTC Card","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-72acb654d277fa7c2a4c900d0e09e3ba2d42453c7c01b2ccb1bece6645b7224e.png?v=1789434333\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eRTC, real-time clock, provides accurate time reference for electronic systems, especially those without network connection, by using the vibration of crystal oscillator as reference frequency. If the RTC chip works when the main power is cut off, additional battery power is required. ↓\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-ff5b7f1396f6fb998aa733f7f8e2851b1c5f016348d4baf831c57984731ea724.jpg?v=1789434338\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eFor simple electronic projects, RTC enables more accurate data processing. For example, it is easy to tell when came the sharp changes in temperature, at night? Or at noon. Send the feeding signal every 4 hours from dawn to early night every day, to realize more intelligent pet feeding operation.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eRTC Card is based on the \u003cstrong\u003eDS1307\u003c\/strong\u003e chip, which supports the I2C protocol. The card requires a Lithium cell battery (CR1225) to operate a long period continuously. The clock operates in either the 24-hour or 12-hour format with AM\/PM indicator. The card requires to insert 3V CR1225 lithium cell battery into the battery holder.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eSpec:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cdiv\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eATmega 168PA microprocessor\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eSupports two wire I2C bus interface\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eOperating Voltage: 5V\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003e\u003cspan\u003eBattery Voltage：2.0-3.5 V\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003e\u003cspan\u003eDS1307 chip\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003e\u003cspan\u003eConnection: Goldfinger \/ Cable\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eDimension: 40.5 x 33 mm\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003chr\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eReferences:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/docs.longan-labs.cc\/1011012\/\" target=\"_blank\"\u003eHow to Use\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003ePinout:\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-62908db678f1882bbc83c1cd716fc026a6059515e6d950671ca8d065ea28bf9d.png?v=1789434227\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cstyle type=\"text\/css\" xml=\"space\"\u003e\u003c!--\np.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'}\nspan.s1 {font: 12.0px '.PingFang SC'}\n--\u003e\u003c\/style\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003cstrong\u003eLongan Cards:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003eL\u003cspan\u003eongan Cards is a unique \u003c\/span\u003e\u003cstrong\u003eopen-source development platform\u003c\/strong\u003e\u003cspan\u003e designed by Longan Labs. As a plug and play development tool, Longan Cards allows you to quickly build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards system\u003c\/span\u003e.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-9b76fb10ba24e8bc5af37eff51bb51f602bd282328d38915024c673bcc77f1f9.png?v=1789434232\" alt=\"\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards system consists of \u003cstrong\u003eCards and Boards\u003c\/strong\u003e. There are many gold finger antennas on Card and several gold finger sockets on Board. They are combined together through sockets interpolation, which is intuitive and easy to use. With this unified and flexible interface, you can realize a variety of ideas. Many more Boards with different themes would luanch to help people explore more fun.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-526bb3f8dac10feec33e032ce1794229f06c03c30f987200061aec6139281c70.png?v=1789434241\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards modules are classified into many types. Firstly, \u003cstrong\u003ethe main control cards\u003c\/strong\u003e which are the heart of Cards system, run the code and take charge of the exchange of data between modules. Besides Carduino, you can also use MicroBit, Arduino and other development board through connection board. \u003cstrong\u003eThe sensor cards\u003c\/strong\u003e can detect data of surrounding such as temperature and air pressure, etc. \u003cstrong\u003eThe inputs cards\u003c\/strong\u003e allows you to do some operations, such as buttons, knobs, etc. \u003cstrong\u003eThe output cards\u003c\/strong\u003e give feedback in various forms, such as buzzers, motor drives, etc. \u003cstrong\u003eThe communication cards\u003c\/strong\u003e can transmit data in many ways, such as Bluetooth and 4G network. \u003cstrong\u003eThe power cards\u003c\/strong\u003e supply power for electronic projects, including batteries, DC, etc. And \u003cstrong\u003eother cards\u003c\/strong\u003e, mainly do some auxiliary work, such as expansion, code downloading, etc.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-c8d221ef6443805fd9ecb10dac268c79ea7d186ccc1eff07110575ee9ceb56c9.png?v=1789434246\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e↑ STEM is an acronym for \u003cstrong\u003escience\u003c\/strong\u003e,\u003cstrong\u003e technology\u003c\/strong\u003e,\u003cstrong\u003e engineering\u003c\/strong\u003e, and\u003cstrong\u003e math\u003c\/strong\u003e. STEM education began in the United States in the 1990s. It is an interdisciplinary teaching method that combines STEM content and real life situations, which helps stimulate students’ original curiosity and thirst for knowledge and novelty. Longan Cards contains dozens of modules, involving a wide range of knowledge in the process of use, including electronic circuit, mechanical structurenature, programming, science of nature, daily wisdom, and humanities, etc. It is a powerful tool for STEM education at fields of electronic prototyping, science experimentation and DIY project.\u003c\/span\u003e\u003c\/p\u003e","brand":"Longan Labs","offers":[{"title":"Default Title","offer_id":55012256678254,"sku":"1011012","price":25.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/1011012-1_1.jpg?v=1789355897"},{"product_id":"1012003","title":"Motor Driver Card","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-7fd494481ee24e505e9215eb93ce396392dfa4feee91379f7a733a09935b6e78.png?v=1789434351\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eThe motor converts electrical energy into mechanical kinetic energy according to the magnetic effect of current. For a DC motor, the speed of the motor varies with the input voltage. Tesla drives the motor and makes car move through electric energy of the battery. Motor Driver Card's main function is to control the speed and direction of the DC Motor through the circuit, so as to make mechanical car move forward and backward, speed up and down.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eIn addition, Motor Driver Card can also control the movement of the stepper motor. Stepper motor is based on the principle of electromagnet, in which the rotating structure can be quickly adjusted to a specific position within the range of angles. It is widely used in the design of robot kinematic joints and mechanical arms. Motor Driver Card helps you control the stepper motor circuits freely. By adjusting the frequency and number of pulse signal, it is allowed to control the speed and displacement of stepper motor, and achieve the required motion.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eMotor Driver Card features \u003cstrong\u003eLV8548MC\u003c\/strong\u003e, which is a 2-channel motor driver IC. It can drive two DC motors or one DC motor using the parallel connection, or it can drive a stepper motor in full-step and half-step.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eLongan Cards is a unique open source development platform designed by Longan Labs. As a plug and play development platform, Longan Cards allows you to quicky build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards platform.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eSpec:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cdiv\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eFeatures LV8548 motor driver\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eSupports two wire I2C bus interface\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eATmega 168PA microprocessor\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eMotor speed and direction control\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eBuilt-in brake function\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003e\u003cspan\u003eConnection: Goldfinger \/ Cable\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eDimension: 40.5 x 33 mm\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003chr\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eReferences:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/docs.longan-labs.cc\/1012003\/\" target=\"_blank\"\u003eHow to Use\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003ePinout:\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-62908db678f1882bbc83c1cd716fc026a6059515e6d950671ca8d065ea28bf9d.png?v=1789434227\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cstyle type=\"text\/css\" xml=\"space\"\u003e\u003c!--\np.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'}\nspan.s1 {font: 12.0px '.PingFang SC'}\n--\u003e\u003c\/style\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003cstrong\u003eLongan Cards:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003eL\u003cspan\u003eongan Cards is a unique \u003c\/span\u003e\u003cstrong\u003eopen-source development platform\u003c\/strong\u003e\u003cspan\u003e designed by Longan Labs. As a plug and play development tool, Longan Cards allows you to quickly build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards system\u003c\/span\u003e.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-9b76fb10ba24e8bc5af37eff51bb51f602bd282328d38915024c673bcc77f1f9.png?v=1789434232\" alt=\"\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards system consists of \u003cstrong\u003eCards and Boards\u003c\/strong\u003e. There are many gold finger antennas on Card and several gold finger sockets on Board. They are combined together through sockets interpolation, which is intuitive and easy to use. With this unified and flexible interface, you can realize a variety of ideas. Many more Boards with different themes would luanch to help people explore more fun.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-526bb3f8dac10feec33e032ce1794229f06c03c30f987200061aec6139281c70.png?v=1789434241\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards modules are classified into many types. Firstly, \u003cstrong\u003ethe main control cards\u003c\/strong\u003e which are the heart of Cards system, run the code and take charge of the exchange of data between modules. Besides Carduino, you can also use MicroBit, Arduino and other development board through connection board. \u003cstrong\u003eThe sensor cards\u003c\/strong\u003e can detect data of surrounding such as temperature and air pressure, etc. \u003cstrong\u003eThe inputs cards\u003c\/strong\u003e allows you to do some operations, such as buttons, knobs, etc. \u003cstrong\u003eThe output cards\u003c\/strong\u003e give feedback in various forms, such as buzzers, motor drives, etc. \u003cstrong\u003eThe communication cards\u003c\/strong\u003e can transmit data in many ways, such as Bluetooth and 4G network. \u003cstrong\u003eThe power cards\u003c\/strong\u003e supply power for electronic projects, including batteries, DC, etc. And \u003cstrong\u003eother cards\u003c\/strong\u003e, mainly do some auxiliary work, such as expansion, code downloading, etc.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-c8d221ef6443805fd9ecb10dac268c79ea7d186ccc1eff07110575ee9ceb56c9.png?v=1789434246\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e↑ STEM is an acronym for \u003cstrong\u003escience\u003c\/strong\u003e,\u003cstrong\u003e technology\u003c\/strong\u003e,\u003cstrong\u003e engineering\u003c\/strong\u003e, and\u003cstrong\u003e math\u003c\/strong\u003e. STEM education began in the United States in the 1990s. It is an interdisciplinary teaching method that combines STEM content and real life situations, which helps stimulate students’ original curiosity and thirst for knowledge and novelty. Longan Cards contains dozens of modules, involving a wide range of knowledge in the process of use, including electronic circuit, mechanical structurenature, programming, science of nature, daily wisdom, and humanities, etc. It is a powerful tool for STEM education at fields of electronic prototyping, science experimentation and DIY project.\u003c\/span\u003e\u003c\/p\u003e","brand":"Longan Labs","offers":[{"title":"Default Title","offer_id":55012256743790,"sku":"1012003","price":25.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/1012003-1.jpg?v=1789355924"},{"product_id":"1012001","title":"Relay Card","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-844a80ba1fb25fd1bd584c844de9fdc27715f51a915b057c3648ca946cb090cf.png?v=1789434355\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eRelay is a device controlling large current through small current. A relay system usually consists of small current circuit, large current circuit, and circuit conversion part. When the low current circuit reaches a certain condition, it will trigger the high current circuit through the conversion section. This method is more safe and flexible than direct control of large current circuits.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eCommon ways of circuit conversion are electromagnetic, solid state, magnetic spring, temperature, light, etc. Relay Card is a reed type. With the help of Relay Card and other sensors, it is easy to automatically turn on air conditioner when detected the temperature is high.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eRelay Card allows you to control the circuit of high voltage with a low voltage, say 5V from the Carduino. The relay on the Relay Card is normally-opened. You can connect any high voltage appliance through the 2-pin terminal block connector on the front of the board. The maximum voltage ratings for the high voltage appliances are 3A@250V AC and 3A@30V DC. When you apply a 5V signal to the Relay Card, the relay gets close, and the connected device will turn ON.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Don't touch Relay Card while connected to the mains electricity or high voltage DC.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eSpec:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cdiv\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eOperating voltage: 5V\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eMaximum switching voltage: 250V AC\/30V DC\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eMaximum switching current: 3A\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eRelay life: 100,000 Cycle\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003e\u003cspan\u003eConnection: Goldfinger \/ Cable\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium; color: #333333;\"\u003eDimension: 40.5 x 33 x 1.2 mm\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003chr\u003e\r\n\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffc100;\"\u003eReferences:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/docs.longan-labs.cc\/1012001\/\" target=\"_blank\"\u003eHow to Use\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003ePinout:\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-62908db678f1882bbc83c1cd716fc026a6059515e6d950671ca8d065ea28bf9d.png?v=1789434227\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cstyle type=\"text\/css\" xml=\"space\"\u003e\u003c!--\np.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'}\nspan.s1 {font: 12.0px '.PingFang SC'}\n--\u003e\u003c\/style\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cspan style=\"color: #ffc100;\"\u003e\u003cstrong\u003eLongan Cards:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003eL\u003cspan\u003eongan Cards is a unique \u003c\/span\u003e\u003cstrong\u003eopen-source development platform\u003c\/strong\u003e\u003cspan\u003e designed by Longan Labs. As a plug and play development tool, Longan Cards allows you to quickly build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards system\u003c\/span\u003e.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-9b76fb10ba24e8bc5af37eff51bb51f602bd282328d38915024c673bcc77f1f9.png?v=1789434232\" alt=\"\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards system consists of \u003cstrong\u003eCards and Boards\u003c\/strong\u003e. There are many gold finger antennas on Card and several gold finger sockets on Board. They are combined together through sockets interpolation, which is intuitive and easy to use. With this unified and flexible interface, you can realize a variety of ideas. Many more Boards with different themes would luanch to help people explore more fun.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-526bb3f8dac10feec33e032ce1794229f06c03c30f987200061aec6139281c70.png?v=1789434241\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e↑ \u003c\/span\u003eLongan Cards modules are classified into many types. Firstly, \u003cstrong\u003ethe main control cards\u003c\/strong\u003e which are the heart of Cards system, run the code and take charge of the exchange of data between modules. Besides Carduino, you can also use MicroBit, Arduino and other development board through connection board. \u003cstrong\u003eThe sensor cards\u003c\/strong\u003e can detect data of surrounding such as temperature and air pressure, etc. \u003cstrong\u003eThe inputs cards\u003c\/strong\u003e allows you to do some operations, such as buttons, knobs, etc. \u003cstrong\u003eThe output cards\u003c\/strong\u003e give feedback in various forms, such as buzzers, motor drives, etc. \u003cstrong\u003eThe communication cards\u003c\/strong\u003e can transmit data in many ways, such as Bluetooth and 4G network. \u003cstrong\u003eThe power cards\u003c\/strong\u003e supply power for electronic projects, including batteries, DC, etc. And \u003cstrong\u003eother cards\u003c\/strong\u003e, mainly do some auxiliary work, such as expansion, code downloading, etc.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/longan-description-c8d221ef6443805fd9ecb10dac268c79ea7d186ccc1eff07110575ee9ceb56c9.png?v=1789434246\" alt=\"\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e↑ STEM is an acronym for \u003cstrong\u003escience\u003c\/strong\u003e,\u003cstrong\u003e technology\u003c\/strong\u003e,\u003cstrong\u003e engineering\u003c\/strong\u003e, and\u003cstrong\u003e math\u003c\/strong\u003e. STEM education began in the United States in the 1990s. It is an interdisciplinary teaching method that combines STEM content and real life situations, which helps stimulate students’ original curiosity and thirst for knowledge and novelty. Longan Cards contains dozens of modules, involving a wide range of knowledge in the process of use, including electronic circuit, mechanical structurenature, programming, science of nature, daily wisdom, and humanities, etc. It is a powerful tool for STEM education at fields of electronic prototyping, science experimentation and DIY project.\u003c\/span\u003e\u003c\/p\u003e","brand":"Longan Labs","offers":[{"title":"Default Title","offer_id":55012256776558,"sku":"1012001","price":24.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/5025\/8542\/files\/1012001-1.jpg?v=1789355937"}],"url":"https:\/\/longan-labs.cc\/collections\/longan-cards-actuator.oembed","provider":"Longan Labs","version":"1.0","type":"link"}