Five Pack MPR121 Capacitive Touch Sensor Breakout Modules V12 I2C Controller Board For Keyboard Projects And Arduino Development Plug And Play Ready Easy Hookup Sensor Matrix Ready

Five-Pack MPR121 Capacitive Touch Breakouts for Arduino
✔️ Five modules with 12 touch electrodes, I2C interface, autocalibration

These five breakout boards bring capacitive touch sensing to keyboard projects, remote controls, and interactive panels. Each module houses an MPR121 controller with 12 sensing electrodes and a 13th simulated electrode for expanded reach. Plug-and-play I2C hookup makes it easy to drop into Arduino, Raspberry Pi, or other microcontrollers.

✅ 5 x MPR121 capacitive touch sensor breakout boards in one pack
✅ 12 independently sensed electrodes + 13th simulated electrode for broader near-field detection
✅ I2C interface with hardware-configurable address and IRQ output
✅ 1.71V-3.6V operation; typical 29 μA run current at 16 ms sampling; 3 μA in scan-stop
✅ 3 mm x 3 mm x 0.65 mm QFN package; -40°C to +85°C operating range
✅ Independent autocalibration per electrode and per-electrode touch/release thresholds

💡 What is an MPR121 capacitive touch sensor board used for in keyboard projects? This handy controller makes it easy to add touch inputs to keyboards and control panels. - It supports 12 electrode inputs plus a 13th simulated electrode for larger sensing area - It uses I2C with a configurable address and IRQ signaling - It auto-calibrates each electrode for stable, repeatable touch readings