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9mm Product Weight 23
USB Direction The bottom USB Type-C port supports input power only
Versatile Compatibility for Seamless Expansion
garbage classification
and serial output during development
M5Stack Chain Mechanical Key Button (STM32G031) Industrial 9mm Product Weight 23Description Chain Key is a single button input node in the M5Stack Chain series. It combines a hot swappable mechanical blue switch, programmable RGB feedback and an STM32G031G8U6 core MCU in a compact Chain series control module. Chain Key uses UART serial cascading communication, making it suitable for interactive button controls, smart home actions and human machine interfaces. With two HY2. 0 4P expansion interfaces, Chain Key can be connected
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