Timer Circuit using IC CD 4060
S1 connected to pin
2 hour 30 minutes
It is important to connect pin 12 (reset pin) to ground for enabling the IC to oscillate and we have connected it to positive supply. This is done so that it instantly stops the IC from oscillating and resets it back to its original stage. It, thus makes sure that we will get equal time period of On/Off time. For example suppose initially the pin is connected to the ground for enabling the IC to oscillate let say for 5 minute, connecting the pin to the positive would immediately halt the counting after 5 minutes and reset it back to zero. So that counter will start again.
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