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and API reference
Double-precision FPU
9mm Product Weight 23
Built upon a sophisticated Ackerman steering chassis
📍 Indoor Positioning & Navigation
M5Stack Chain Mechanical Key Button (STM32G031) Industrial and API referenceDescription 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
