{"product_id":"2pcs-mpr121-capacitive-touch-sensor-module-12-button-keypad-i2c-output","title":"2Pcs MPR121 Capacitive Touch Sensor Module 12-Button Keypad I2C Output","description":"\u003ch3\u003e2Pcs MPR121 Capacitive Touch Sensor Module 12-Button Keypad I2C Output\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThe MPR121 capacitive touch sensor module is a 12-key touch keyboard board\nwith I2C output and IRQ interrupt support. It is designed for low-power touch\nsensing applications and works well in DIY, embedded, and human-machine\ninterface projects. Product Specifications Operating Voltage: 2.5V–3.6V DC\nTypical Operating Current: 29 μA at 16 ms sampling interval Scan-Stop Current:\n3 μA Interface: I2C with IRQ Operating Temperature: -40°C to +85°C Pin\nDescription VCC: Power supply positive GND: Power supply negative SDA: I2C\ndata SCL: I2C clock IRQ: Interrupt output, active low Applications Touch\ncontrol panels DIY electronic keyboards Embedded human-machine interfaces\nCapacitive sensing projects Smart control systems\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n  \u003cul class=\"a\"\u003e\n         \u003cli\u003e12-Key Capacitive Touch Input: The MPR121 module provides a simple 12-key touch-sensitive keyboard, making it ideal for DIY control panels, smart interfaces, and capacitive touch input projects.\u003c\/li\u003e\n         \u003cli\u003eI2C Output for Easy Integration: Features an I2C communication interface with IRQ support, allowing simple connection to microcontrollers, development boards, and embedded systems for fast and reliable touch detection.\u003c\/li\u003e\n         \u003cli\u003eLow Power Consumption Design: Operates at only 29 A during typical scanning and as low as 3 A in scan-stop mode, making it a great choice for battery-powered and energy-efficient applications.\u003c\/li\u003e\n         \u003cli\u003eFlexible Voltage Range: Supports 2.5V to 3.6V DC operation. If your host board uses 5V logic, a level converter or 3.3V logic supply is required for proper compatibility.\u003c\/li\u003e\n         \u003cli\u003eStable Performance Design: Built for dependable operation from -40C to +85C, this capacitive touch module is suitable for consumer electronics, industrial controls, and custom touch interface projects.\u003c\/li\u003e\n  \u003c\/ul\u003e","brand":"MakerCircuit","offers":[{"title":"Default Title","offer_id":68199800602861,"sku":"B0HFBWW1VQ","price":101.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0324\/1050\/1164\/files\/B0HFBWW1VQ.jpg?v=1793949350","url":"https:\/\/leoforward.com\/products\/2pcs-mpr121-capacitive-touch-sensor-module-12-button-keypad-i2c-output","provider":"LeoForward AU","version":"1.0","type":"link"}