{"product_id":"microwave-motion-sensor-rcwl-0516","title":"Microwave Motion Sensor (RCWL-0516)","description":"\u003cp\u003eThis is an RCWL-0516 microwave sensor, an easy-to-use alternative to the \u003ca href=\"\/zh\/products\/pir-motion-sensor-module\"\u003eclassic PIR sensor\u003c\/a\u003e we know and love.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy would you opt for a microwave sensor over PIR?\u003c\/strong\u003e The main reason is its ability to work inside a non-metallic enclosure or even through most walls, allowing you to create something like a room sensor with a clean finish that you'd be happy to have in the home (\u003ca href=\"\/zh\/products\/room-sensor-enclosure-size-3\"\u003ewe have a great little enclosure for that here!\u003c\/a\u003e). It also means you can use these in garden\/outdoors projects, inside a \u003ca href=\"\/zh\/products\/flanged-weatherproof-enclosure-with-pg-7-cable-glands\"\u003ewaterproof enclosure\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eIt's also much more compact than traditional PIR sensors, and that's always a good thing!\u003c\/p\u003e\n\u003cp\u003eUsing microwave radar technology, this sensor detects motion in a range of 4 to 7 meters, making it ideal for a variety of projects such as human monitoring, pet detection, home automation and more! The output pin is \u003cstrong\u003e3.3V\u003c\/strong\u003e, and with an input of \u003cstrong\u003e4-28V\u003c\/strong\u003e, you can use this with your \u003ca href=\"\/zh\/collections\/raspberry-pi-store\"\u003eRaspberry Pi\u003c\/a\u003e, \u003ca href=\"\/zh\/collections\/pico\"\u003eRaspberry Pi Pico\u003c\/a\u003e, \u003ca href=\"\/zh\/collections\/arduino-store\"\u003eArduino\u003c\/a\u003e and other similar \u003ca href=\"\/zh\/collections\/adafruit-development-boards\"\u003emicrocontrollers\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eYou can even solder a \u003ca href=\"\/zh\/products\/ldr-light-dependent-resistor\"\u003elight-dependent resistor\u003c\/a\u003e (LDR) to the two angled CDS pads to disable the sensor when it detects light - handy for night-only projects, such as garden wildlife \u003cem\u003e(spot those pesky foxes!)\u003c\/em\u003e.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrowave radar technology\u003c\/strong\u003e: Uses Doppler radar for motion detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection range\u003c\/strong\u003e: Effective from 5 to 7 meters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide operating voltage\u003c\/strong\u003e: 4 to 28V DC input range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.3V digital output:\u003c\/strong\u003e Compatible with Raspberry Pi, Pico, Arduino and more!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh sensitivity\u003c\/strong\u003e: Can detect motion through walls and non-metallic objects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact design\u003c\/strong\u003e: Small form factor allows for easy integration into various projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow power consumption\u003c\/strong\u003e: Efficient design - minimal power usage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOption to add an LDR\u003c\/strong\u003e: Disables the sensor when it detects light, handy for night-only projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating voltage\u003c\/strong\u003e: 4-28V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection distance\u003c\/strong\u003e: ~5-7 meters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating current\u003c\/strong\u003e: ~2.8 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput\u003c\/strong\u003e: 3.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 36mm x 17mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/dronebotworkshop.com\/rcwl-0516-experiments\/\"\u003eDroneBot Workshop has a great article on these kinds of sensors\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRaspberry Pi Usage\u003c\/h3\u003e\n\u003cp\u003eFor Raspberry Pi usage (and most microcontrollers) the relevant pins will be:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVIN\u003c\/strong\u003e - Input voltage (4-28V). Connect this to your 5V line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e - Connect this to a Ground pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOUT\u003c\/strong\u003e - Digital output pin, connect this to a GPIO pin as an input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll you need to do then is code your project to look for a \u003cstrong\u003eHIGH\u003c\/strong\u003e signal on the pin you connected to \u003cstrong\u003eOUT\u003c\/strong\u003e, the same as any other digital input.\u003c\/p\u003e\n\u003ch3\u003eOther Pins\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCDS\u003c\/strong\u003e - Light sensor (LDR) pin, can be used for enable control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3V3\u003c\/strong\u003e - This pin \u003cstrong\u003eoutputs \u003c\/strong\u003e3.3V \u003cstrong\u003e(it's not an input to power the module!)\u003c\/strong\u003e from an onboard regulator, offering 3.3V @ 100mA max\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x RCWL-0516 Microwave Sensor\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Pi Hut","offers":[{"title":"Default Title","offer_id":50847314084113,"sku":"105582","price":1.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/microwave-motion-sensor-rcwl-0516-the-pi-hut-105582-42437696585923.jpg?v=1735210782","url":"https:\/\/abcd3032.myshopify.com\/zh\/products\/microwave-motion-sensor-rcwl-0516","provider":"Tayyab Zak","version":"1.0","type":"link"}