30 Minutes Timer Circuit using CMOS IC 4011 is good for long time delay with few minutes to many hours. This timer turns OFF device after 30 minutes. It is useful for automation, delayed ON/OFF and save energy. This type of circuit is good to save power. Circuit use special chip called 4011 which is […]
Timer Circuits
IC 555 Timer Based Vibration Alarm Circuit
IC 555 Timer Based Vibration Alarm Circuit is any easy to make. It senses vibration and gives sound and light alert. This circuit is used in security systems, factory machines and anti-theft devices. Main part is IC 555 timer which sends steady signal when sensor feels vibration. Circuit Working: Parts List: Component Specification Quantity Resistors […]
Simple 555 Timer Based Transistor Tester Circuit
Transistors are very important in electronics. They make signals strong and turn things ON/OFF and do many jobs. To check if its good then we need to test them. Testing helps find problems and broken parts. This article for Simple 555 Timer Based Transistor Tester Circuit show easy way to test transistors with 555 timer […]
Simple Timer Based Clock Ticking Sound Circuit
This article is about Simple Timer Based Clock Ticking Sound Circuit using IC 555 555 in astable mode make repeat signal like clock tick. Signal goes to small speaker and make ticking sound. Circuit is good for beginner, easy to learn 555 timer and sound making. Circuit Working: Parts List: Component Specification Quantity Resistor 43k […]
Easy DIY Timer Alarm Circuit with 555 IC
IC 555 is very popular and useful chip in electronics. It works in different modes with bistable, astable and monostable. Here we used IC 555 in monostable mode to make a Easy DIY Timer Alarm Circuit with 555 IC. We can set time and after that the buzzer or alarm will ring. It is nice […]
Simple 60 Second Timer Circuit using IC 555
Simple 60 Second Timer Circuit using IC 555 is used to control time in many electric works. This Simple 60 Second Timer Circuit uses 555 timer IC and a famous chip for timing jobs. Press push button and LED turns ON for about 1 minute. This circuit is good for delay lights, fun projects or […]