Exemplary Electronic Timer Switch Circuit Diagram

Here a relay is used to switch the load for certain amount of time.

Electronic timer switch circuit diagram. Simple timer circuit diagram the figure 1 shows a very simple timer that will activate the relay for around 45 seconds after pressing the push button s1. This on off switch circuit using a 555 timer is simple useful and easy to implement. Here arduino plays a key role in setting this time period.

This is used to switch on the loads for the certain time period and then they are automatically switched off. The time delay of the circuit can be increase or decrease by increasing or decreasing the value of 470uf capacitor. This circuit has many applications on places where it is necessary to activate and deactivate connect and disconnect an electrical or electronic device.

For example a 1000uf capacitor can give around 2 5 minutes time delay. On off switch circuit using a 555 timer. Arduino adjustable timer is simple circuit to generate timer for required time.

In this project we are using 555 timer ic to create various timer circuit like 1 min timer circuit 5 min timer circuit 10 min timer circuit and 15 min timer circuit. Here with the help of the 555 timer ic we are eliminating the need of manually switching on or off the device. For example when a module is powered up also it sends out a signal of 50 percent the voltage plus the technician does not know this he d think he provides a problem as this individual would expect the 12v signal.