Uploaded November 2025 | Updated September 2026, 3 weeks ago

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#M5StackNew 🎉 Chain Key Released
Chain Key is a single-button input node in the M5Stack Chain series. The button adopts a hot-swappable mechanical keyboard design with a blue tactile switch and integrates a programmable RGB LED.

✨Features
✅ Hot-swappable mechanical keyboard blue switch
✅ STM32G031G8U6 core MCU, UART cascading communication protocol
✅ Single button input, 2x programmable RGB LED
✅ 2x HY2.0-4P expansion interfaces to extend Chain series devices

🛒 Get Yours:
Shopify: https://biturl.top/7zyMje
AliExpress: https://s.click.aliexpress.com/e/_c3DRia7R

#M5Stack #M5StackNew #IoT #Hardware #Makers #SmartHome #HMI #STM32 #KeySwitch #MechanicalKeyboard