{"product_id":"3-channel-capacitive-touch-sensor-with-i2c","title":"3 Channel Capacitive Touch Sensor with I2C","description":"\u003cp\u003eThe project described here is a 3 channel capacitive touch sensor based on\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCAP1203\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003echip from Microchip which is a multiple-channel capacitive touch sensor controller. It has 3 x individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. 3 x touchpads are provided on PCB to detect the touch. Each sensor input is calibrated to compensate for system parasitic capacitance and automatically recalibrated to compensate for gradual environmental changes. The CAP1203 includes Multiple Pattern Touch recognition that allows the user to select a specific set of buttons to be touched simultaneously. If this pattern is detected, a status bit is set and an interrupt is generated. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCAP1203\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehas Active and Standby states, each with its own sensor input configuration controls. Power consumption in the Standby state is dependent on the number of sensor inputs enabled as well as averaging, sampling time, and cycle time. Deep Sleep is the lowest power state available, drawing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e5µA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(typical) of current. In this state, no sensor inputs are active, and communications will wake the device.\u003c\/p\u003e\n\u003ch3\u003eConnections Connector CN2\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePin1 VCC 3.3V or 5V DC\u003c\/li\u003e\n\u003cli\u003ePin2 SCL (Arduino UNO Analog Pin A5)\u003c\/li\u003e\n\u003cli\u003ePin 3 SDA (Arduino UNO Analog Pin A4)\u003c\/li\u003e\n\u003cli\u003ePin 4 Alert Interrupt Output for SMBus\u003c\/li\u003e\n\u003cli\u003ePin 5 GND\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply 3.3V or 5V DC\u003c\/li\u003e\n\u003cli\u003eThree (3) Capacitive Touch Sensor Inputs\u003c\/li\u003e\n\u003cli\u003eProgrammable Sensitivity\u003c\/li\u003e\n\u003cli\u003eAutomatic Recalibration\u003c\/li\u003e\n\u003cli\u003eCalibrates For Parasitic Capacitance\u003c\/li\u003e\n\u003cli\u003eIndividual Thresholds for each Button\u003c\/li\u003e\n\u003cli\u003eMultiple Button Pattern Detection\u003c\/li\u003e\n\u003cli\u003ePower Button Support\u003c\/li\u003e\n\u003cli\u003ePress and Hold Features for Volume-like Applications\u003c\/li\u003e\n\u003cli\u003eAnalog Filtering for System Noise Sources\u003c\/li\u003e\n\u003cli\u003eRF Detection and Avoidance Filters\u003c\/li\u003e\n\u003cli\u003eDigital EMI Blocker\u003c\/li\u003e\n\u003cli\u003eLow Power Operations 5uA Quiescent Current in Deep Sleep. 50uA In Standby (Only Chip)\u003c\/li\u003e\n\u003cli\u003eSamples One Or More Channels in Standby\u003c\/li\u003e\n\u003cli\u003eI2C\/SMBus Compliant Communication Interface\u003c\/li\u003e\n\u003cli\u003e2 Easy to Mount Holes\u003c\/li\u003e\n\u003cli\u003eHeader Connector for Micro-Controller Interface\u003c\/li\u003e\n\u003cli\u003eOn-Board Power LED\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 56.19MM X 33.90MM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47071583502508,"sku":"S103","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/S107C.jpg?v=1787833610","url":"https:\/\/dotfry.com\/products\/3-channel-capacitive-touch-sensor-with-i2c","provider":"dotfry","version":"1.0","type":"link"}