Pages: [1]   Go Down
Author Topic: I think I broke my Arduino (pic included)  (Read 407 times)
0 Members and 1 Guest are viewing this topic.
0
Offline Offline
Jr. Member
**
Karma: 0
Posts: 56
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

So I'm trying to figure out what happened to my Arduino.  Everything had been running find for days, then I checked on it and the i2c LCD was flashing on and off.  I took it all apart and now sketched will upload.  Some will work, like the blink example, but others that use the i2c bus don't work.  I have tried my 328 chip and 168 chip and there is no difference.  The only thing I have seen is on the resistor pictures below there is some discoloration.  The resistor tests as 1K ohms with the multimeter though.  All other connections seem good.  The little hair is from a Q-tip.  It wasn't there when it was all running.  Any suggestions?


« Last Edit: April 17, 2009, 10:09:08 pm by jener8tionx » Logged

Left Coast, CA (USA)
Offline Offline
Brattain Member
*****
Karma: 361
Posts: 17259
Measurement changes behavior
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Well I think we need more description of what doesn't work. If I understand you it does upload and run the blink program? For that to happen a awful lot is OK on the board. I think you may have to run more sketches to try and nail down what works and what doesn't.

Lefty
Logged

Bristol, UK
Offline Offline
Edison Member
*
Karma: 1
Posts: 1197
Exhibitor at UK Maker Faire
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

The part you have arrowed is a ceramic capacitor.  It looks fine.  The resistors are black and (in your photo) have 103 written on them.  They're fine too.
Logged

Manchester (England England)
Offline Offline
Brattain Member
*****
Karma: 596
Posts: 33288
Solder is electric glue
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote
but others that use the i2c bus don't work.

This bus uses A4 & A5 so you might have blown those pins. Check them by connecting an LED and resistor to them and running the blink program. (suitably modified) Then make them inputs and check they read a push button.
If all that is OK then you have something else wrong with your external I2C circuitry.
« Last Edit: April 21, 2009, 03:57:33 am by Grumpy_Mike » Logged

0
Offline Offline
Newbie
*
Karma: 0
Posts: 2
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

It looks okay to me.
Logged

Pages: [1]   Go Up
Jump to: