DIY Compressor time delay circuit
SEE DIY compressor time delay circuit. Protect your compressor when power outage and Electrical fluctuations. Using normal parts and cheap. Read more
Controls & Timers
8A solenoid coil driver circuit using MOSFET
You finish PWM signal with Arduino control solenoid valve. You should use solenoid coil driver circuit. Good choice. 2 MOSFET and a few parts Read more
10 Key Switch Code Combination Lock Circuit
Simple Key code lock switch circuit using IC-4017 digital, uses 10 switch bottom to control output by Relay. No microcontroller so easier and cheaper! Read more
5-20 Minutes Timer Circuit Using IC555
See a small 5-20 minutes timer circuit using the IC555, along with a PCB layout. It is a simple and compact, yet practical project to make. Read more
8 simple touch switch circuit projects
Many how to make simple touch switch circuit project. To build easy. Using transistor and IC like 555 timer, 4011 CMOS, flip-flop IC. Read more