Arduino Tester - Fault 'Cell!'

After testing a 'germanium' diode with the machine, last thing it read was 2pf or something across the germanium diode, from then on , nothing... the atmega chip powers up, drives the LCD display, but instead of invalid reading just cell..

my firth thought was ok fine some component, so i replaced every component except 3 which were tested and to be matching, that leaves one possibility that the atmega328p's pin is dead.....

ok then, i'm going to lift it out and try again (after a failed atempt 2 months ago) and hope i can extract a hex dump...

Sorry, i left my Crystal ball at work, so i have no idea of knowing what an "Arduino tester" is.

Do you care to share some details, or even a link to the aforementioned device?

// Per.

Arduitester I think... is the name

Ebay sells a Transistor tester based on arduino, I don't require help I'm letting others who have this issue know my results, seems this is a common issue...

cjdelphi: Arduitester I think... is the name

Ebay sells a Transistor tester based on arduino, I don't require help I'm letting others who have this issue know my results, seems this is a common issue...

OK.

The component testers are not based on Arduino, but AVR-chips (Usually ATMega168)

// Per.

Zapro:

cjdelphi: Arduitester I think... is the name

Ebay sells a Transistor tester based on arduino, I don't require help I'm letting others who have this issue know my results, seems this is a common issue...

OK.

The component testers are not based on Arduino, but AVR-chips (Usually ATMega168)

// Per.

all the ones i've seen are the 328p same as the uno.

The one you have is called an AVR-TransistorTester, or is based on it.

http://www.markus.org/Electronics/Projects/AVR-Transistortester/

http://www.mikrocontroller.net/articles/AVR_Transistortester

I have a similar device, also from eBay. There seem to be quite a few variations, mine looks like this:

The Ardutester is a port to the Arduino.

http://forum.arduino.cc/index.php?topic=164112.0

What I'm getting at, is what you have is not an Arduino, and that you can probably download the C code if you are unable to get the program off of that 328.

There is a very long thread on EEVBlog forums about this component tester:

http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/

Moderator edit: URL corrected

Translated:

http://translate.google.com/translate?hl=en&sl=de&u=http://www.mikrocontroller.net/articles/AVR_Transistortester&prev=/search%3Fq%3Dtransistortester.tar.gz%26hl%3Den%26safe%3Doff%26client%3Dfirefox-a%26hs%3DILT%26rls%3Dorg.mozilla:en-GB:official&sa=X&ei=PYQpUbfWMenD0QWrn4GQCg&ved=0CFMQ7gEwBA