{"id":8139835244781,"title":"HiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor","handle":"hiletgo-2pcs-mpr121-breakout-v12-proximity-keyboard-touch-sensor-capacitive-touch-sensor","description":"\u003ch3\u003eHiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eInstructions: The MPR121 is a capacitive touch sensor controller driven by an\nI2C interface. The chip can control up to twelve individual electrodes, as\nwell as a simulated thirteenth electrode. The MPR121 also features eight LED\ndriving pins. When these pins are not configured as electrodes, they may be\nused to drive LEDs. There a four jumpers on the bottom of the board, all of\nwhich are set (closed) by default. An address jumper ties the ADD pin to\nground, meaning the default I2C address of the chip will be 0x5A. If you need\nto change the address of the chip (by shorting ADD to a different pin), make\nsure you open the jumper first. Jumpers also connect SDA, SCL and the\ninterrupt pin to 10k pull-up resistors. If you don't require the pull-up\nresistors you can open the jumpers by cutting the trace connecting them.\nThere is no regulation on the board, so the voltage supplied should be\nbetween 2.5 and 3.6VDC. The VREG pin is connected through a 0.1uF capacitor to\nground, which means, unless you modify the board, you can't operate the MPR121\nin low-supply voltage mode (1.71-2.75VDC). Features: 3 μA Stop mode current.\n12 capacitance sensing inputs. 8 inputs are multifunctional for LED driver\nand GPIO. Complete touch detection. Auto-configuration for each sensing\ninput. Auto-calibration for each sensing input. Touch\/release threshold and\ndebounce for touch detection. I2C interface, with Interrupt output. MPR121:\n3 mm x 3 mm x 0.65 mm . -40°C to +85°C operating temperature range. Package\nIncluded: 2 MPR121-Breakout-V12 Proximity Keyboard Touch Sensor\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eThe MPR121 is a capacitive touch sensor controller driven by an I2C interface.\u003c\/li\u003e\n \u003cli\u003eThe chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode.\u003c\/li\u003e\n \u003cli\u003eThe MPR121 also features eight LED driving pins.\u003c\/li\u003e\n \u003cli\u003eLow power operation, 1.71 V to 3.6 V supply operation.\u003c\/li\u003e\n \u003cli\u003e29A supply current at 16 ms sampling interval period.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2023-03-07T20:35:15+11:00","created_at":"2023-03-07T20:35:20+11:00","vendor":"HiLetgo","type":"","tags":["industrial_Dec2022"],"price":7500,"price_min":7500,"price_max":7500,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44004997005549,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B06XXYZPPX","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"HiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor","public_title":null,"options":["Default Title"],"price":7500,"weight":9,"compare_at_price":null,"inventory_management":null,"barcode":"3-01-0901","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/leoforward.com\/cdn\/shop\/products\/61bDU8VDkqL.jpg?v=1678181721","\/\/leoforward.com\/cdn\/shop\/products\/61ufNQZ60QL.jpg?v=1678181721","\/\/leoforward.com\/cdn\/shop\/products\/61dvgP1Yl2L.jpg?v=1678181721","\/\/leoforward.com\/cdn\/shop\/products\/51_Du5sRIiL_86bae79f-affa-4b01-819f-de2b87085c6e.jpg?v=1678181721"],"featured_image":"\/\/leoforward.com\/cdn\/shop\/products\/61bDU8VDkqL.jpg?v=1678181721","options":["Title"],"media":[{"alt":" [AUSTRALIA] - HiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor","id":31188397424877,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1100,"width":1100,"src":"\/\/leoforward.com\/cdn\/shop\/products\/61bDU8VDkqL.jpg?v=1678181721"},"aspect_ratio":1.0,"height":1100,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/61bDU8VDkqL.jpg?v=1678181721","width":1100},{"alt":" [AUSTRALIA] - HiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor","id":31188397457645,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1010,"width":1010,"src":"\/\/leoforward.com\/cdn\/shop\/products\/61ufNQZ60QL.jpg?v=1678181721"},"aspect_ratio":1.0,"height":1010,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/61ufNQZ60QL.jpg?v=1678181721","width":1010},{"alt":" [AUSTRALIA] - HiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor","id":31188397490413,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1010,"width":1010,"src":"\/\/leoforward.com\/cdn\/shop\/products\/61dvgP1Yl2L.jpg?v=1678181721"},"aspect_ratio":1.0,"height":1010,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/61dvgP1Yl2L.jpg?v=1678181721","width":1010},{"alt":" [AUSTRALIA] - HiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor","id":31188397523181,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1100,"width":1100,"src":"\/\/leoforward.com\/cdn\/shop\/products\/51_Du5sRIiL_86bae79f-affa-4b01-819f-de2b87085c6e.jpg?v=1678181721"},"aspect_ratio":1.0,"height":1100,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/51_Du5sRIiL_86bae79f-affa-4b01-819f-de2b87085c6e.jpg?v=1678181721","width":1100}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eHiLetgo 2pcs MPR121-Breakout-V12 Proximity Keyboard Touch Sensor Capacitive Touch Sensor\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eInstructions: The MPR121 is a capacitive touch sensor controller driven by an\nI2C interface. The chip can control up to twelve individual electrodes, as\nwell as a simulated thirteenth electrode. The MPR121 also features eight LED\ndriving pins. When these pins are not configured as electrodes, they may be\nused to drive LEDs. There a four jumpers on the bottom of the board, all of\nwhich are set (closed) by default. An address jumper ties the ADD pin to\nground, meaning the default I2C address of the chip will be 0x5A. If you need\nto change the address of the chip (by shorting ADD to a different pin), make\nsure you open the jumper first. Jumpers also connect SDA, SCL and the\ninterrupt pin to 10k pull-up resistors. If you don't require the pull-up\nresistors you can open the jumpers by cutting the trace connecting them.\nThere is no regulation on the board, so the voltage supplied should be\nbetween 2.5 and 3.6VDC. The VREG pin is connected through a 0.1uF capacitor to\nground, which means, unless you modify the board, you can't operate the MPR121\nin low-supply voltage mode (1.71-2.75VDC). Features: 3 μA Stop mode current.\n12 capacitance sensing inputs. 8 inputs are multifunctional for LED driver\nand GPIO. Complete touch detection. Auto-configuration for each sensing\ninput. Auto-calibration for each sensing input. Touch\/release threshold and\ndebounce for touch detection. I2C interface, with Interrupt output. MPR121:\n3 mm x 3 mm x 0.65 mm . -40°C to +85°C operating temperature range. Package\nIncluded: 2 MPR121-Breakout-V12 Proximity Keyboard Touch Sensor\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eThe MPR121 is a capacitive touch sensor controller driven by an I2C interface.\u003c\/li\u003e\n \u003cli\u003eThe chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode.\u003c\/li\u003e\n \u003cli\u003eThe MPR121 also features eight LED driving pins.\u003c\/li\u003e\n \u003cli\u003eLow power operation, 1.71 V to 3.6 V supply operation.\u003c\/li\u003e\n \u003cli\u003e29A supply current at 16 ms sampling interval period.\u003c\/li\u003e\n \u003c\/ul\u003e"}