Arduino IR Obstacle Sensor Buzzer With LED
Easy thing. When an opaque material will come closer to the sensor, the buzzer will make sound LED will light up.
You can watch the video - https://www.youtube.com/watch?v=zklsAf4Zpoc
Upon searching the web, I I found that there is no proper complete guide of this basic thing. In this guide, we will use Regular IR Obstacle Sensor, which cheap; not Sharp IR Sensor. You’ll see that our diagram shown is of Sharp IR Sensor, but actually connection is same and for Regular IR Obstacle Sensor.