This project for Arduino 2-Step Programmable Timer Circuit with Independent Output Delay Adjustment uses Arduino microcontroller to make simple timer. Not like normal timer with two outputs as this one uses only one output. It switch between two states. And each state have delay which we can change for different use. Circuit Working: Parts List: […]
Timer Circuits
Power ON Delay Circuit
Power ON Delay Circuit using IC 555 give time gap between power ON and circuit starts. When trigger comes, IC 555 work in monostable mode and give one output pulse for set time. Resistor R1 and capacitor C2 make timing part for delay. Output stay low with circuit OFF when capacitor is charging. When power […]
AC Power Outlet with Timer Circuit
In this AC Power Outlet with Timer Circuit think about a normal plug goes in wall but this one have a timer built-in like small control panel. This is called a timer plug or outlet timer. We can plug other device into it. Inside, small chip work like a brain and it is called 555 […]
Simple IC 555 Oscillator Circuits
Simple IC 555 Oscillator Circuits is a 555 timer chip which is common and easy to use; also it is good for many projects. But for some circuits we must know how it works when not active. Two main pins: IC 555 Pinouts Here is a list that shows what each pin on the chip […]
Automatic Power Delay OFF Circuit
This Automatic Power Delay OFF Circuit is like small helper to remind us to turn OFF things; also we can connect it with our device with the time frame like 1 hour, 2 hour as it stops the power by itself. Moreover, it is very useful if we want to keep nightlight ON for some […]
Simple LED Driver Circuit using IC 7555
Simple LED Driver Circuit using IC 7555 uses one special chip called as 7555 IC, people mostly use it for timing but here we have used for different way. Also, it work like boss and control how electricity connects to LEDs, here, the chip make special pulse signal like square wave and this signal connects […]