Description
The Breakout V12 Capacitive Touch Sensor is a versatile touch input module designed for use in interactive electronics, DIY projects, and smart control systems. Based on capacitive sensing technology, it detects touch through non-metallic surfaces such as glass, plastic, or acrylic, making it more durable than mechanical switches.
With high sensitivity, stable performance, and a simple breakout design, this sensor is compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers. It’s an excellent choice for projects requiring smooth, touch-based input.
Features
This is a breakout board for Freescale’s MPR121QR2 The MPR121 is a capacitive touch sensor controller driven by an I2C interface The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode
The MPR121 also features eight LED driving… pins. When these pins are not configured as electrodes, they may be used to drive LEDs. There a four jumpers on the bottom of the board, all of which are set (closed) by default.An address jumper ties the ADD pin to ground, meaning the default I2C address of the chip will be 0x5A. There is no regulation on the board, so the voltage supplied should be between 2.5 and 3.6VDC.
Specifications
Operating Voltage: 2.7V – 6V DC
Number of Inputs: Single capacitive touch channel
Output Type: Digital (High/Low)
Response Time: ≤ 50ms
Touch Surface: Works through plastic, glass, or acrylic (non-metallic)
Operating Temperature: -20°C to +70°C
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