Tachometer is a RPM counter which counts the no. of rotations per minute.There are two types of tachometer - one is mechanical and the other one is digital. Here we are going to design an Arduino ...

Fig. 2 shows the block diagram of the touchless doorbell circuit while Fig. 3 shows the complete circuit. The circuit is built around dual timer NE556 (IC1), transistor BC547 (T1), IR receiver ...

Our college conducts a MICRO expo, where we ECE students all are supposed to do a mini project,so we made a simple mini project with radar and arduino. Title: Radar: Object Detection Visualization ...