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Author Topic: $50 Robot Circuit Problem  (Read 1084 times)

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Offline Smyt3rTopic starter

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$50 Robot Circuit Problem
« on: June 22, 2009, 11:58:54 AM »

Hi all.
I am at the programming stage of my $50 robot and I'm using the more expensive programmer (avr isp mkII). I would like to set my servos to "0" so I can modify them BUT when I plug the programmer header onto the board the programmer led flashes orange, which according to the documentation indicates a wiring fault or something such.   :-\

I have thoroughly checked my board for errors many times, and I can find nothing wrong. However, there obviously IS something wrong! I have also checked with a multimeter and there is the right current throughout the circuit.

Also, do I have to have both battery packs (9v + 4.8v), servos and photoresistors plugged in for the circuit to work properly?   ???

This project has to be finished in a week's time.
I have attached some photos of my circuit. Please excuse my abysmal soldering!
And yes I know the LED's in a weird place but I blew the first one.
Thanks in advance! ;)

http://bayimg.com/CaBBgAaCH
http://bayimg.com/CabbIaACh
http://bayimg.com/cAbBlAach
http://bayimg.com/CABBpaacH

P.S The pictures are very bad quality, I took them on my phone, but I will try to upload some good quality ones within a few days.

Offline Smyt3rTopic starter

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Re: $50 Robot Circuit Problem
« Reply #1 on: June 22, 2009, 12:26:18 PM »
PROBLEM SOLVED... by my mother... How humiliating! I connected pin 5 of the header to GND on the microcontroller when it should have been on RESET. My programmer has lit up all green!  ;D ;D ;D

Offline Finnik

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Re: $50 Robot Circuit Problem
« Reply #2 on: June 22, 2009, 12:28:02 PM »
Check if you have the header wired up correctly, I think I see that you've not wired the one going to "Reset"
You might want to check this message to check the other connections.

Hope this helps.

   ---EDIT
Problem solved whilst I was writing my post...
Think outside the box... inside is to crowded.

Offline Webbot

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Re: $50 Robot Circuit Problem
« Reply #3 on: July 01, 2009, 06:23:03 PM »
PROBLEM SOLVED... by my mother... How humiliating! I connected pin 5 of the header to GND on the microcontroller when it should have been on RESET. My programmer has lit up all green!  ;D ;D ;D

Hope that Mum now has her own SoR account  ;)
Webbot Home: http://webbot.org.uk/
WebbotLib online docs: http://webbot.org.uk/WebbotLibDocs
If your in the neighbourhood: http://www.hovinghamspa.co.uk

 


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