In this tutorial, we are making a circuit of a Simple magnetic pulse counter using a hall effect sensor. This circuit is simple and easy to make as it uses only a few numbers of … Read more
photocoupler
In this tutorial, we are making a very useful and interesting project of an Object counter. This circuit is simple and uses an LDR, a laser light, a PC817 photocoupler, an 8-digit inexpensive calculator, and … Read more