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Sir. I know this post is old. But I want to know that how can I control the motor speed as what I want? I'm researching on Solar Tracker circuit for my learning project. I've been looking for many circuits like this, but in there, the author never gives me know how to control the speed of the motor. I want to control it runs slower because if it runs with the speed like in your video, the solar tracker can't be controlled. Please help me answer this question!Thank you!
I think 1N4148 is fine for this circuit. Trust me.
Yeah. Of course you can. But you have to use also 4060 and JK or D FF to divide pulse to standard 1Hz for your circuit.
You can use CLK pulse from pin 9 of 2nd 4020 IC, through 1 or 2 Transistor connected series with LED. That'll make LED blink as you want.
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