{"product_id":"dollatek-5pcs-mpr121-breakout-v12-proximity-capacitive-touch-sensor-module","title":"DollaTek 5pcs MPR121 Breakout V12 Proximity Capacitive Touch Sensor Modules","description":"\u003ch3\u003eDollaTek 5pcs MPR121 Breakout V12 Proximity Capacitive Touch Sensor Module\u003c\/h3\u003e \u003cp id=\"b\"\u003eThe MPR121 also has eight LED control pins. If these pins are not configured as electrodes, they can be used to control LEDs. There are four jumpers at the bottom of the board, all of which are set (closed) by default. An address jumper connects the ADD pin to the ground, which means the default I2C address of the chip is 0 x 5A. If you need to change the address of the chip (by shortening ADD to another pin), make sure to open the jumper first. The jumpers also connect SDA, SCL and the break pin with 10k reset resistors. If you do not need the reset resistors, you can open the jumpers by cutting off the track that connects them. There is no regulation on the board, so the supplied voltage must be between 2.5 and 3.6 VDC. The VREG pin is connected to the ground via a 0.1 µF capacitor. This means you cannot use the MPR121 in low voltage mode (1.71-2.75VDC) unless a change is made to the board. Product Features: Low power operation. Powered by power from 1.71V to 3.6V. Supply current of 29 μA at a sampling rate time of 16 ms. 3 μA in off mode. 12 capacity detection inputs. 8 inputs are multifunctional for LED driver and GPIO. Full touch detection Automatic configuration for each detection input. Self-calibration for each detection input. Touch threshold\/rebound function for touch recognition I2C interface with interrupt output MPR121: 3mm x 3mm x 0.65mm Operating temperature range from -40°C to +85°C. Package includes: 5 x DollaTek MPR121 Capacitive Touch Sensor Module V12 5pcs\u003c\/p\u003e \u003ch3\u003eProduct Features\u003c\/h3\u003e \u003cul class=\"a\"\u003e \u003cli\u003eThe MPR121 also has eight LED control pins. If these pins are not configured as electrodes, they can be used to control LEDs.\u003c\/li\u003e \u003cli\u003eThere are four jumpers at the bottom of the board, all of which are set (closed) by default. An address jumper connects the ADD pin to the ground, which means the default I2C address of the chip is 0 x 5A. If you need to change the address of the chip (by shortening ADD to another pin), make sure to open the jumper first. The jumpers also connect SDA, SCL and the break pin with 10k reset resistors. If you do not need the reset resistors, you can open the jumpers by cutting off the track that connects them.\u003c\/li\u003e \u003cli\u003eThere is no regulation on the board, so the supplied voltage must be between 2.5 and 3.6 VDC. The VREG pin is connected to the ground via a 0.1 F capacitor. This means you cannot use the MPR121 in low voltage mode (1.71-2.75VDC) unless a change is made to the board.\u003c\/li\u003e \u003cli\u003e12 capacitance sensing inputs\u003c\/li\u003e \u003c\/ul\u003e","brand":"DollaTek","offers":[{"title":"Default Title","offer_id":44374749315252,"sku":"de-B07MPB41MB","price":113.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9906\/1172\/files\/B07MPB41MB.jpg?v=1788263040","url":"https:\/\/auspowers.com\/products\/dollatek-5pcs-mpr121-breakout-v12-proximity-capacitive-touch-sensor-module","provider":"AusPower Australia","version":"1.0","type":"link"}