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also how would i check capacitors?
ok i can get them smd ones (although they are twice the price of the same but through hole)
Very Nicely done Hyper you do some really nice and clean work
Thank you, if a jobs worth doing, its worth doing right. :P
That is definatly true lol.I would never use the board your using because of how the traces are... it would confuse the hell out of me lol.
Did you see the pdf i made about the battery powered charger? i'm going to make one like that for this, so you print the layout out stick it to the board then you know exactly where everything goes makes it super easy
did not think of that... lolanyway in that pdf where it shows the board, all the traces going horizontal are connected except where the red circles r right.Also, your tester looks great, I cant wait to get my avr and lcd screen so i can make it lol.
Yep you get the board with all the horizontal traces intact then you "break" the traces where the red squares are
Oh ok good then I was correct lol. I don't have any boards set up like that, radio shack doesn't seem to carry them, so this is what I did.http://i93.photobucket.com/albums/l70/matand009/0717111134.jpg
Thats odd...and what is that in the picture?
built it, seems to work, but im gonna need to edit the code as the on screen messages are in german now i just need the pcb layout EDIT: it seems to be detecting all resistors as paralell opposite diodes, this could be due to my wiring or because the youtube video above has different software on the AVR (mines in german theres is english), or because i had to bodge some resistors, i dont knowEDIT2: Just found some updated designs and software here, http://svn.coremelt.net/avr/semiconductor_tester/EDIT3: Ok sorted now, english, resistors working, caps working, transistors working, diodes working, uart output now included and working. cant test accuracy until i get the right resistors though. also the uart means you can use a cheap serial>usb cable instead of or as well as an lcd there is also updated schematics including one that sacrifices the auto turn off but reduces the part count a bitalso fookz if its not too much trouble could you add to the pcb a connection for uart (pin 26 for tx and gnd) and a 6pin isp header? or gimme the files so i can try add these myself?
cheap serial>usb cable... how do I do that? lol I can do a full test then without the lcd screen after I get back from dropping off my car to get it painted. I only need to connect a few resistors and put in the test socket and the board part is done.I got everything together now (except for the display) and I believe that it is working because when I put an led in and press the button, it does blink like in the video.
I dunno I never managed to get the serial out to work properly