Photocell motor

Locked
User avatar
Xenarian
Member
Member
Posts: 16
Joined: February 26th, 2010, 10:56 am
Division: C
State: IL
Has thanked: 0
Been thanked: 0

Re: Photocell motor

Post by Xenarian »

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.
Events:
Write it/do it (1st place at state, 2009)
Mission Possible
It's About Time
Picture This
Physics Lab
Experimental Design
Optics
Technical Problem Solving
Robot Ramble
Top
Balsa Man
Coach
Coach
Posts: 1318
Joined: November 13th, 2008, 3:01 am
Division: C
State: CO
Has thanked: 0
Been thanked: 3 times

Re: Photocell motor

Post by Balsa Man »

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
Top
User avatar
Xenarian
Member
Member
Posts: 16
Joined: February 26th, 2010, 10:56 am
Division: C
State: IL
Has thanked: 0
Been thanked: 0

Re: Photocell motor

Post by Xenarian »

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 :)
Events:
Write it/do it (1st place at state, 2009)
Mission Possible
It's About Time
Picture This
Physics Lab
Experimental Design
Optics
Technical Problem Solving
Robot Ramble
Top
Locked

Return to “Mission Possible C”

Who is online

Users browsing this forum: No registered users and 5 guests