MPR121 Breakout V12 Capacitive Touch Sensor

The MPR121 Breakout V12 Capacitive Touch Sensor is an advanced touch sensing module designed to provide up to 12 capacitive touch input channels for interactive electronics and human-machine interface applications. Based on the MPR121 touch sensor controller IC, this module detects touch through changes in electrical capacitance, eliminating the need for mechanical buttons. With an easy-to-use I2C communication interface, it can be integrated with Arduino, ESP32, STM32, Raspberry Pi, and other microcontroller platforms for creating touch-based control systems. Available at Directronics, the MPR121 Breakout V12 Capacitive Touch Sensor is ideal for students, hobbyists, makers, educators, and professional engineers working on interactive electronics, IoT, and automation projects.

Features:

• 12 Channel Capacitive Touch Sensing

• Based on MPR121 Touch Controller IC

• I2C Digital Communication Interface

• Supports Touch and Release Detection

• No Mechanical Buttons Required

• Low Power Consumption

• Adjustable Touch Sensitivity

• Built-In Touch Detection Algorithms

• LED Indicator Support (Model Dependent)

• Compact Breakout Board Design

• Compatible with Arduino, ESP32, STM32, and Raspberry Pi

• Suitable for Human Interface Applications

Why Choose MPR121 Breakout V12 Capacitive Touch Sensor?

• Enables multiple touch inputs using a single module

• Provides a modern alternative to physical switches

• Easy integration with microcontrollers through I2C

• Suitable for interactive and smart device development

• Reduces wiring complexity compared to multiple switches

• Ideal for beginners, students, makers, and professionals

Applications:

• Touch Control Panels

• Smart Home Automation

• Touch-Based Lighting Systems

• Interactive Displays

• Musical Instruments and Controllers

• Wearable Electronics

• Robotics Human Interface Systems

• IoT Control Panels

• Educational Electronics Projects

• DIY Touch Switch Applications

Technical Specifications:

• Product Type: Capacitive Touch Sensor Module

• Sensor IC: MPR121

• Number of Touch Channels: 12

• Communication Interface: I2C

• Operating Voltage: 2.5V–3.6V DC (Module Dependent)

• I2C Address: 0x5A / 0x5B / 0x5C / 0x5D (Configurable)

• Touch Detection: Capacitive Sensing

• Electrode Connection: 12 Touch Inputs

• Interrupt Output: Available

• Power Consumption: Low Power Operation

• Operating Temperature: -40°C to +85°C (Typical)

Package Includes:

• 1 × MPR121 Breakout V12 Capacitive Touch Sensor Module

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• Capacitor Touch Dimmer

• APDS9960 RGB Gesture Sensor Detection Module

• Arduino Uno

• ESP32 Development Board

• STM32 F103C8T6 System Board

• Raspberry Pi Pico W

• OLED Display Module

• Jumper Wire Bundle (40Pcs)

• Relay Modules

Why Buy from Directronics?

Directronics provides quality development boards, communication modules, sensors, electronic components, robotics modules, power management solutions, and IoT products for students, makers, educational institutions, startups, and industry professionals. Explore our complete range of Arduino, ESP32, ESP8266, Raspberry Pi, power modules, motor drivers, programming tools, and embedded development products to bring your ideas to life.

Note:

Product images are for illustration purposes only. Actual module design, pin configuration, and onboard components may vary depending on the manufacturing batch. Ensure correct VCC, GND, SDA, and SCL connections while interfacing with microcontrollers. Avoid placing touch electrodes near strong electromagnetic interference sources for stable touch detection.