Description M5Stack Chain Angle is a compact rotary control module for the Chain ecosystem when you need accurate potentiometer knob input, clear device feedback, and easy serial expansion in a very small footprint. Built around the STM32G031G8U6 MCU, the M5Stack Chain Angle converts potentiometer knob input into digital data with up to 12-bit resolution, making the M5Stack Chain Angle a practical choice for human-machine interface panels, tuning consoles, and interactive embedded controls. The combination of potentiometer knob input, RGB LED, and UART serial cascade protocol makes M5Stack Chain Angle especially useful whenever a rotary control module feels more natural than push buttons. For smart home control, audio knobs, parameter dials, and compact control surfaces, the M5Stack Chain Angle gives you stable potentiometer knob input inside a dependable human-machine interface design. Features M5Stack Chain Angle rotary control module for Chain projects. Potentiometer knob input with smooth rotary action and stable reporting. STM32G031G8U6 MCU for stable acquisition and local processing. Up to 12-bit resolution for accurate potentiometer knob input output. RGB LED for mode, warning, and status feedback. UART serial cascade protocol for multi-module Chain expansion. Dual HY2.0-4P ports for easy daisy-chain installation. Well suited for smart home control and human-machine interface projects. Specifications Item Details Brand M5Stack Model Chain Angle SKU U208 MCU STM32G031G8U6 Main Function Potentiometer knob input with Chain bus reporting Product Type Rotary control module Resolution Up to 12-bit resolution Communication UART serial cascade protocol, 115200bps @ 8N1 Interface 2 x HY2.0-4P LED 1 x WS2812C RGB LED Input Power DC 5V Power Consumption 21.13mA with RGB on Rotation Angle 280° ±10° Operating Temperature 0 ~ 40°C Product Size 23.9 x 23.9 x 28.2mm Product Weight 8.4g Applications Smart home control panels for lighting, scenes, and appliance adjustment. Human-machine interface layouts for rotary navigation, menu movement, and value tuning. Audio control surfaces that need reliable potentiometer knob input. Motor speed control and parameter setting in compact devices. M5Stack Chain prototypes that need a dependable rotary control module with clean potentiometer knob input. Product List Chain Angle x1 Chain Bridge x1 Other Content The included Chain Bridge lets the M5Stack Chain Angle connect cleanly to a Chain controller. Keep the triangular arrow facing outward from the host side so the Chain bus direction stays correct. Function Pin RGB LED PA8 Angle ADC PB0 UART1 TX / RX PB6 / PB7 UART2 TX / RX PA2 / PA3 Resources Chain Angle Product Documentation Chain Angle Arduino Guide Chain Angle Schematic Chain Angle Dimension Drawing Chain Angle Official Video FAQ What is M5Stack Chain Angle mainly used for?The M5Stack Chain Angle is mainly used as a rotary control module for human-machine interface, smart home control, navigation, and embedded projects that benefit from potentiometer knob input. Does M5Stack Chain Angle support cascading?Yes. The M5Stack Chain Angle uses the UART serial cascade protocol and provides two HY2.0-4P ports so multiple Chain modules can be linked together through the Chain bus. What controller is used on M5Stack Chain Angle?The M5Stack Chain Angle uses the STM32G031G8U6 MCU and a rotary input path with up to 12-bit resolution, helping the M5Stack Chain Angle deliver smooth and reliable potentiometer knob input.
