This is a simple and cheap arduino based frequency Counter cost less than 4$ it been very useful to measure small circuits Parts for the Project 1.adruino uno or nano2. Jumper cables3. 16*2 lcd4. Ic 5555. 1uf cap Solder Pins to Lcd Connection to Arduino Follow up the schematic and connec…By: kiran.bholiyan // Read more: original article.
