Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: RiffRaff on February 19, 2009, 06:54:06 AM

Title: photoresistors on $50 robot... burnout?
Post by: RiffRaff on February 19, 2009, 06:54:06 AM

So, how likely is it that accidently plugging photoresistors into my servo pins and turning the bot on would result in damage or destruction to the photoresistors  :o

Riff

PS: Admin, I know this may actually be a double post, but I thought I'd move it over to electronics.

Title: Re: photoresistors on $50 robot... burnout?
Post by: Qubix on February 19, 2009, 08:06:58 AM

I don't think it should do the photoresistor any harm. In essence it is just resistor whose resistance changes with light. The voltage you have going to the servos passing through it shouldn't damage it. You could build a simple photoresistor circuit to test it is still working , like this one http://www.societyofrobots.com/schematics_photoresistor.shtml

Hope this helps :)

David

Title: Re: photoresistors on $50 robot... burnout?
Post by: RiffRaff on February 19, 2009, 08:18:37 PM

Ahah!  I found a short in the sensor inputs.  It blinded my poor robot.