Author Topic: Sketch does not run with external power supply  (Read 999 times)

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Offline Warhawk87Topic starter

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Sketch does not run with external power supply
« on: July 30, 2010, 05:18:09 PM »
Hey guys,

Ive been running all the programs on my arduino duemilanove using usb with no problem, and now that Ive changed over to external power, none of them run.... Whats the issue?

Offline Soeren

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Re: Sketch does not run with external power supply
« Reply #1 on: July 30, 2010, 09:03:10 PM »
Break out a voltmeter and see if power goes to where it must.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline Warhawk87Topic starter

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Re: Sketch does not run with external power supply
« Reply #2 on: July 31, 2010, 12:09:28 AM »
Problem is i dont know where the power must go, and my probes are a little too big 0.o the power light flashes indicating it is getting power, its just not loading the program

Offline Soeren

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Re: Sketch does not run with external power supply
« Reply #3 on: July 31, 2010, 05:33:43 AM »
Problem is i dont know where the power must go,
Then you have to find out. Study the schematic.
If you don't know such a basic thing, you have a very little chance of fixing it, so learn learn learn - you cannot rely on a web board for every tiny issue.


and my probes are a little too big 0.o
Then get, or make, smaller probes - I have yet to see a probe that is too big for even smd though - a point is still a point.


the power light flashes indicating it is getting power, its just not loading the program
That info should have gone into your first post. It indicates that it get some power, but perhaps not enough, so break out the voltmeter and the schematic. Test thorougly around the regulator.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline amando96

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Re: Sketch does not run with external power supply
« Reply #4 on: July 31, 2010, 06:04:23 AM »
weak battery.
Rorcle, 60% complete
AATV, 5% complete

Offline Warhawk87Topic starter

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Re: Sketch does not run with external power supply
« Reply #5 on: August 02, 2010, 08:31:25 PM »
Will do soeren... Im just getting started and my first impulse is to run to the web board  ;D

Offline paulstreats

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Re: Sketch does not run with external power supply
« Reply #6 on: August 03, 2010, 03:01:33 AM »
how many volts are you powering it with, and where are you connecting the power to?

Offline Warhawk87Topic starter

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Re: Sketch does not run with external power supply
« Reply #7 on: August 03, 2010, 09:06:00 PM »
12 volts, VIN and ground in the "power" pins

 


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