MPR121 Breakout Capacitive Touch Sensor Module Elevate your touch-based projects with the MPR121 Breakout Capacitive Touch Sensor Module, a versatile and reliable solution for implementing touch-sensitive controls. Designed around Freescale's advanced MPR121QR2 capacitive touch sensor controller, this breakout board seamlessly integrates with your projects, offering precise touch detection and robust performance. Key Features Advanced Capacitive Touch Sensing: Powered by the MPR121QR2 controller, this module provides highly accurate capacitive touch sensing, enabling responsive and reliable user interactions. I2C Communication Interface: Easily connect and communicate with your microcontrollers using the I2C interface, ensuring smooth data exchange and control. Supports Twelve Electrodes: Manage up to twelve individual touch electrodes, allowing for complex touch input configurations in your applications. Simulated Thirteenth Electrode: Enhance your designs with an additional simulated electrode, offering more flexibility in touch sensing setups. Configurable LED Driving Pins: Features eight dedicated LED driving pins that can be customized as additional electrodes or used to control LEDs, adding visual feedback to your projects. Adjustable I2C Address: Customize the I2C address with the built-in address jumper (default address: 0x5A), facilitating multiple device integrations on the same bus. Integrated Pull-Up Resistors: Equipped with jumpers for SDA, SCL, and interrupt pins, each accompanied by 10K pull-up resistors, ensuring stable and reliable connections. Wide Operating Voltage Range: Operates seamlessly between 2.5V and 3.6VDC, making it compatible with a variety of power sources and microcontrollers. VREG Pin for Stable Voltage: The VREG pin provides a stable 2.5V output, complemented by a 0.1µF capacitor to ground, ensuring consistent performance of the touch sensor controller. Technical Specifications Material Durable Alloy and Plastic Construction Application Capacitive Touch Sensor Controller for Various Projects Operating Voltage 2.5V – 3.6V DC Dimensions 6 cm x 3 cm x 2 cm Important Notes Please be aware that the MPR121 Breakout Capacitive Touch Sensor Module does not include an onboard voltage regulator. Ensure that the supplied voltage remains within the specified range of 2.5V to 3.6VDC for optimal performance. The VREG pin is set to a steady 2.5V to support the stable operation of the sensor controller. Why Choose the MPR121 Breakout Module? This breakout board offers a straightforward and efficient way to incorporate capacitive touch sensing into your projects. Whether you're developing interactive interfaces, smart home devices, or innovative prototypes, the MPR121 module provides the versatility and reliability you need. Its comprehensive feature set, combined with easy integration through the I2C interface, makes it a go-to choice for hobbyists and professionals alike. Enhance your designs with responsive touch controls and customizable LED indicators, all while benefiting from the sturdy build quality and precise performance of the MPR121QR2 controller. Unlock the potential of touch sensing technology and bring your creative ideas to life with the MPR121 Breakout Capacitive Touch Sensor Module.
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