MPR121 Capacitive Touch Sensor (I2C)

Overview

MPR121 12‑channel capacitive touch sensor with I2C interface. Detects proximity and touch. Supply: 2.5–3.6V.

Key Features

• 12 electrodes
• I2C communication
• Proximity sensing
• 3.3V logic

Specifications

• Supply: 2.5–3.6V

Dimensions & Weight

• Length: ~25 mm
• Width: ~15 mm
• Weight: ~3 g

Package Includes

• 1 × MPR121 Module

Applications

• Touch and proximity detection
• User interface and controls
• Arduino and embedded projects