We have a collection of almost 500+ Arduino projects with Code, Circuit Diagram, and detailed explanations completely free for everyone to build and learn on their own. The IR sensor has a 3-pin ...

Normally these speed sensors work with radar or laser technology to bounce back radio waves or IR ... Arduino UNO and is not shown in the above circuit diagram. In the below image, you can see the ...

Here is the diagram of my Arduino infrared close proximity sensor. As you can see, the core part of my experimental setup is an Arduino UNO, but other compatible microcontrollers can also be employed.

you can calculate the speed at which the car travelled from IR Sensor 1 to IR Sensor 2 as you already know the time of travel. All the calculations and data gathering are done by Arduino and the final ...

Here is a simple and inexpensive Arduino based motion sensor alarm with voice alert. It can be used for security purposes. Typically, for outdoor monitoring, motion sensor alarm consists of a PIR ...