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Hi I'm new to electronics and need some help

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Hi I'm new to electronics and need some help

Postby Dano3256 » Sat May 19, 2012 4:36 am

I want to make a small 9 volt motor run for 2 sec at a time and I want to have a choice of 15 sec, 30 sec, 1 min, and 2 min delays in between runs. Any help would be great thanks Danny
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Re: Hi I'm new to electronics and need some help

Postby electric_guide » Sun May 27, 2012 1:18 pm

well, the timing circuit is easy.

you can use a 555 component and connect the output to a NPN transistor or FET to drive the motor (it depends on the motor type).

google for "555 timer"

About the motor: what motor is it? brush ? step motor? servo?

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Re: Hi I'm new to electronics and need some help

Postby pebe » Tue May 29, 2012 8:41 am

[quote="Dano3256"]I want to make a small 9 volt motor run for 2 sec at a time and I want to have a choice of 15 sec, 30 sec, 1 min, and 2 min delays in between runs. Any help would be great thanks Danny[/quote]
You could use a 4060 binary counter if you can accept an 'On' time of 1.875secs instead of 2secs. Alternatively, with a 2sec 'On' time, you would have times of 16secs, 32secs, 64secs or 128secs.

Let me know if you need a circuit.
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