Photocell motor

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Xenarian
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Re: Photocell motor

Post by Xenarian » March 10th, 2010, 4:03 pm

Okay, I'm using 2 photocells in parallel with a smaller resistance in series in order to activate a relay.
But it's not working too well. So I'm troubleshooting lately.

But I have all the tasks complete now! I'm excited for regionals in 1.5 weeks.
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Re: Photocell motor

Post by Balsa Man » March 11th, 2010, 4:13 am

Xenarian wrote:Okay, I'm using 2 photocells in parallel with a smaller resistance in series in order to activate a relay.
But it's not working too well. So I'm troubleshooting lately.

But I have all the tasks complete now! I'm excited for regionals in 1.5 weeks.
Shouldn't need - or want - a resistor going to the relay....
Len Joeris
Fort Collins, CO

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Re: Photocell motor

Post by Xenarian » March 11th, 2010, 8:35 pm

Um... Well, the problem is that my photoresistor resistance is too high, even in high-light conditions.
So I'm putting them in parallel with a lower resistance, after experimenting with some variable resistors. But I figured out why it's not working: somehow little bits of iron got in the gap of my relay. So, we'll see how it works tomorrow :)
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