Heelight Core

When we are talking about IoT, what would you think of?
Normally, Zigbee, Wi-Fi, BLE, LoRa or others wireless communication technology will appear in our minds.

Here we introduce a totally new way of IoT, a much more interesting way of IoT. The way I mentioned is sound, which is different from the voice recognition.

Heelight Core is a smart sound sensor that can recognize up to 500+ digital voice commands. It was originally used on the Heelight – a smart colorful bulb that can be controlled by digital sound waves. Now we introduce this sensor into the small and neat modules, allow you to control things via sound in your projects.

Heelight Core has a tiny size, only 20mm*17mm. By using the design of the stamp hole, you can easily integrate heelight core into your product. We also provide the component library in Eagle format. And there is a 4-pin header, which can insert to a bread board directly to build a prototype.

So what are the advantages of digital sound control?

  • The operation is simple, as long as a device can make a sound, you don't need to connect WiFi, or connect Bluetooth
  • There is no compatibility issues. Compare to Bluetooth, WiFi, zigbee, sound is more common.


  • UART output (default 9600)
  • Android/iOS APP
  • 500+ sounds available
  • 3.3V working voltage
  • Small Size
  • Work with bread board
  • Easy to be integrated to PCB




Please feel free to contact joney.sui@longan-labs.cc if you want to find us.