{"title":"SparkFun Proximity Sensor Breakout - 20cm, VCNL4040 (Qwiic)","handle":"sparkfun-proximity-sensor-breakout-20cm-vcnl4040-qwiic","url":"/products/sparkfun-proximity-sensor-breakout-20cm-vcnl4040-qwiic","description":"The SparkFun VCNL4040 Proximity Sensor Breakout detects objects qualitatively up to 20 cm away using infrared proximity sensing. It also includes a built-in ambient light sensor, making it a versatile dual-function module. With no dead zone, it can read objects all the way to the face of the sensor.\n\nThe breakout features a Qwiic connector for solderless I²C hookup, plus standard 0.1\" header pins for breadboard use. A digital alternative to analogue Sharp IR sensors — ideal when you need presence detection rather than precise distance measurement.\n\nKey Features\n\n\nVCNL4040 Sensor – Combined IR proximity and ambient light sensor\n\nProximity Range – Up to 20 cm with no dead zone\n\nAmbient Light Sensor – Built-in digital light level measurement\n\nQwiic Connector – Solderless I²C connection (4-pin JST, 1 mm pitch)\n\nBreadboard Friendly – 0.1\" header pins also broken out\n\n3.3 V Logic – I²C interface\n\n\nIdeal For\n\nObject presence and proximity detection\nAutomatic dispensers and touchless controls\nAmbient light sensing\nGesture detection projects\n\n\nPackage Contents\n\n1× SparkFun VCNL4040 Proximity Sensor Breakout (Qwiic)\n\n\nResources\n\nHookup Guide\nArduino Library (GitHub)\n","vendor":"SparkFun","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":6965,"title":"Default Title","sku":"SF-SEN-15177","price":16.7,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}