Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Jdog on May 14, 2008, 07:06:15 PM

Title: $50 battery and circuit problem
Post by: Jdog on May 14, 2008, 07:06:15 PM
I have just finished the circuit board, and i'm having some problems. This is my first robot so my soldering isn't that good yet. I'm trying to use the AA battery pack with the 9 volt battery, and it's very confusing. After looking over everything about 5 more times, I've tried fixing things, but still can't get it working.
http://s306.photobucket.com/albums/nn278/Jdog415/Photovore%20robot/ This is the link to the pictures, if someone could possibly take a look and see what is wrong, it would be greatly appreciated.
Title: Re: $50 battery and circuit problem
Post by: Admin on May 19, 2008, 07:10:40 PM
hi

can you try these steps and let us know your results?
http://www.societyofrobots.com/robot_faq.shtml#circuit_debug
Title: Re: $50 battery and circuit problem
Post by: Jdog on May 22, 2008, 11:48:56 PM
Should my 5v regulator heat up when i plug in the 9 volt battery
Title: Re: $50 battery and circuit problem
Post by: alessio136 on May 23, 2008, 11:20:07 AM
Quote from: Jdog on May 22, 2008, 11:48:56 PM
Should my 5v regulator heat up when i plug in the 9 volt battery

yes it does but very low.

if it gets very hot it's becouse you inverted lateral pins. by the way I have not seen the pictures yet. try to control regulator datasheet: VIN goes to the (+) of the battery, VOUT goes to the circuit. central pin goes to (-) of the battery.
Title: Re: $50 battery and circuit problem
Post by: Webbot on May 23, 2008, 06:03:40 PM
Check out my circuit diagram attached to http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198 (http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198)

Your regulator shouldn't get that hot. Try unplugging the micro-controller and then re-applying the power. Check out voltages on the IC socket with a meter  - you may have a short
Title: Re: $50 battery and circuit problem
Post by: Jdog on May 25, 2008, 02:17:51 PM
Quote from: Webbot on May 23, 2008, 06:03:40 PM
Check out my circuit diagram attached to http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198 (http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198)

Your regulator shouldn't get that hot. Try unplugging the micro-controller and then re-applying the power. Check out voltages on the IC socket with a meter  - you may have a short
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