Description M5Stack Mechanical Key Button Unit is a compact mechanical key input module designed for tactile user input, visual feedback, and reliable interaction in embedded control projects. Built with a blue switch and an integrated SK6812 LED, this RGB key input module is a practical choice for human machine interface button layouts, custom input panels, and programmable button control tasks. Features Blue switch provides tactile bump and audible click feedback. Integrated SK6812 LED adds bright visual indication for each key state. This mechanical key input module supports compact digital input projects. The built-in LED makes it suitable as an RGB key input module for status prompts and interaction cues. It works well as a tactile interface button in portable, desktop, and control-panel builds. Specifications Specification Parameter Supply Voltage DC 5V Button Output Logic Signal DC 3.3V Standby Current DC 5V@2mA Operating Current DC 5V@13mA Product Size 40.0 × 24.0 × 22.6mm Product Weight 7.6g Package Size 138.0 × 93.0 × 18.0mm Gross Weight 13.1g Applications This unit is well suited for custom keyboards, menu navigation, portable devices, control consoles, and compact embedded interfaces that need dependable tactile input. As a mechanical key input module with integrated light output, it fits human machine interface button projects, operator panels, and programmable button control systems where a single switch must deliver both action and feedback. Product List 1 × Unit Key 1 × HY2.0-4P Cable (20cm) Other Content Resources M5Stack Mechanical Key Button Unit Official Docs Official Schematic PDF FAQ What makes this unit different from a normal push button?It combines a blue mechanical switch and an addressable LED, so it works as both a tactile input device and an RGB key input module. Where is it most useful?It is a good fit for human machine interface button layouts, device controls, and programmable button control projects that need reliable tactile response.
