To design a delay timer circuit using 555 timer IC.

  1. Click on the Components button to place components on the table.

Fig. 1 Components

  1. Make connections as per the circuit diagram and pin diagram of IC or according to connection table.

Fig. 2 Circuit Diagram of Delay Before Turn On Timer

Fig. 3 Pin Diagram of 555 Timer IC

Table 1: Connection table

  1. Click on Check Connections button. If connections are right, click on ‘OK’, then Simulation will become active.
  2. Observe the Delay Time before the circuit turns on (LED glows).
  3. Compare it with the theoretical value.
  4. Click on the Reset button to reset the page.