Eight Pack MPR121 Capacitive Touch Sensor Breakout Board With I2C Interface For Keyboard DIY Projects V12 Controller Module Featuring Eight LED Driving Pins And Twelve Electrode Support

Eight Pack MPR121 Capacitive Touch Sensor Breakout Board
✔️ I2C interface supports 12 electrodes and 8 LED pins

The MPR121 capacitive touch sensor breakout brings a multi-channel touch detector and I2C controller to hobby projects. Use it in keyboards, DIY panels, and touch-enabled interfaces to sense finger touches on up to 12 electrodes with LED feedback.

✅ 12 electrode inputs plus simulated 13th electrode
✅ Eight LED driving pins for visual indicators
✅ I2C interface with default address 0x5A (ADD tied to ground)
✅ Low power operation from 1.71 V to 3.6 V supply
✅ 29 μA supply current at 16 ms sampling interval

💡 What is an MPR121 capacitive touch sensor breakout board used for in DIY keyboard projects?

This handy module lets you add touch controls to keyboards, panels, and other touch-enabled interfaces.

- low-power capacitive touch sensing with 12 electrode channels - I2C interface with default address 0x5A - LED drive pins for simple visual feedback