Uploaded July 2026 | Updated September 2026, 3 weeks ago

---

Chain Buzzer is a buzzer output node in the M5Stack Chain series, suitable for audible notifications, status alerts, smart home alarms, and other applications. 
✨Features
✅STM32G031G8U6 core MCU
✅1 x RGB LED
✅UART serial daisy-chain communication protocol
✅2 x HY2.0-4P expansion ports for connecting Chain series devices
🛒 Get Yours:
Shopify: bit.ly/3RNXqRH
AliExpress: bit.ly/3RW9JLL
#M5Stack #M5StackNew #IoT #Hardware #Makers #Buzzer #SmartHome