Egg Timer on Breadboard
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This is an egg timer circuit that sounds the alarm when your egg is ready. You can choose between:
- soft (3.5 minutes)
- medium soft (5 minutes)
- medium hard (7 minutes)
- hard (10.5 minutes)
You set the timer using the rotary switch. An LED blinks to show that the timer is active.
Egg Timer on Breadboard Schematic
The timer circuit is based around the CD4060 IC. I used this CD4060 tutorial to figure out how long it takes for each output to go high. Then I used AND gates to combine different outputs to get the four different time settings.
The LED is there to give you an indication that the counter circuits is working.
Egg Timer on Breadboard Parts List
How to Build the Egg Timer on Breadboard
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