Simple long duration timer circuit
The Simple long duration timer circuit using OP-AMP, If build the RC timer only that long time delay we need too many resistors and capacitors may be error […] Read more
Controls & Timers
How to rotate dc motor in both direction
It is easy if you control DC motor in a single direction. Sometimes you think. How to rotate DC motor in both directions. You are not worried. There are many ways to control speed, on-off, and dc motor reverses rotation. Read first: How does H-bridge motor driver works In these circuits below use many types … Read more
Many AC Dimmer circuit ideas
The AC light dimmer circuit can control light bulb or speed AC motor, we use triac and SCR as main,and adjust potentiometer and switch,more circuits […] Read more
Automatic water level controller – 2 circuits choice
Tank empty! No water! You do not like it. Let’s make automatic water level controller circuit. Keep constant water. Simple parts. You can do. Read more
Transistor Relay driver circuit in digital
How to control a load with a digital circuit like Arduino? A transistor relay circuit may be answered for you. The output pulse from the digital circuit to biased the transistor is ON. Then, it drives the relay as a switch ON-OFF. To power to any circuits or external devices. Basic Application Relay The Controlling … Read more