DIYmall RCWL-0516 Motion Detection Sensor, Microwave Radar Sensor, Switch Module, for Arduino ESP8266 Nodemcu Wemos, for Raspberry PI, for Human Rat Cat Detector, Detection Distance 5-7m

today in the workshop we'll be working with the RC WL 0 5 1 6 a microwave proximity sensor which uses Doppler radar we'll learn about the Doppler effect and we'll use the sensor both by itself and with an Arduino we're working with microwaves today so welcome to the workshop [Music] hello and welcome to the workshop today we're going to be working with yet another form of proximity sensing being able to detect when someone has entered into an area and raise an alarm or take action for it now we have worked with proximity sensing before we use the PIR or passive infrared sensor and a passive infrared sensor detected a change in the amount of infrared energy in the room and then it took action on that we've also worked with ultrasonic and lidar distance sensors and they can be used as a form of proximity sensing as well you can basically use these to measure the distance to an object so s