I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

Circuit Diagram and Explanation. As shown in the above tachometer circuit, it contains Arduino Pro Mini, IR sensor module, buzzer and LCD. Arduino controls the whole process like reading pulse that IR ...

In this project we are going to work on an innovative arduino project idea, where we can count the paper currency notes and calculate their amount, by sensing the paper currency using Color Sensor and ...

Connect the Hardware: Assemble the circuit according to the provided circuit diagram. Upload the Code: Upload the transmitter code to one Arduino Nano and the receiver code to another Arduino Nano.

Proximity Sensor Switch – Circuit Diagram. The circuit diagram of the wireless load control unit is shown in Fig. 2. This design is based on Arduino Nano board and built around an I2C LCD (module1).

Besides the Arduino Nano, I used an ultrasonic sensor and an infrared sensor module. Description: The infrared sensor module detects the movement, which will wake up the Nano from sleeping and the ...

The block diagram of the motion sensor alarm is shown in Fig. 2. Fig. 1: Author’s prototype Fig. 2: Block diagram of motion sensor alarm Circuit and working. The circuit diagram of the motion sensor ...