No touch-enabled pins on your board? No problem. The CJMCU-0401 adds 4 independent capacitive touch inputs to any microcontroller project — no special hardware required. Each channel has a dedicated direct output pin and an onboard LED indicator, so you can see touch events at a glance.
The capacitive sensing works through glass, ceramic, plastic, and other insulating surfaces — great for embedding touch controls behind fabric or panels in wearable builds.
Key Features
4 capacitive touch inputs with 4 direct output pins + 4 LED indicators
Works through glass, ceramic, plastic, and other insulating surfaces
Ultra-low power: 11.5µA max, 4µA in low-power mode
Auto-calibration every ~4 seconds when idle
Built-in jitter suppression for reliable, noise-resistant sensing
