Is there a page on differences between versions anywhere? Wiki? Something like that?
Should I make one? (not something I'd enjoy doing but it's info I would like to know anyway)
Can someone link to the best one of these to get please ?
I have a few questions to you guys who have been through this already:
1. Was there a consensus on the ISP header such as the one Darrylp mounted?
2. Since this may have a ATmega168. Is it possible to retrofit an ATmega328P, ATmega328 or socket in the same package?
3. How can I tell them apart? Are they essentially the same beast or need further mods?
4. Wheres a good resource for info on AVR ISP programming?
5. Anyone got a good place to purchase headers, chips and programming related parts from?
I saw another one of these on Ebay that had some sort of rudimentary function generator. And now I can't find it.
I saw another one of these on Ebay that had some sort of rudimentary function generator. And now I can't find it.
http://www.ebay.com/itm/161135107947
http://www.ebay.com/itm/321157000855
http://www.ebay.com/itm/150959457334
Nice work Frenchie on your PCB. Did you make that yourself or?
I was thinking something along the lines of this.
I like the ZIF socket idea as you can just drop a component in or short test wires.
I would case mount it or put on a separate PCB to reduce opening and closing stresses. You can also change it later with no hassle.
9v battery compartment with door and external socket.
Another nice idea! Someone has built a version with all hardware options (2.5V reference, relay and boost converter) and put the ZIF socket and contact pads on a small doughter board.
I think this someone is me, see https://github.com/maugsburger/avr-component-tester
Got any photos of it complete?
I didn't know cat droppings came in 0.025uF ratings. . I don't think that I've seen a brown capacitor before with a round end.
But I do like the board and also how you used a bare LCD.
Karl-Heinz finished version 1.08k (http://www.mikrocontroller.net/svnbrowser/transistortester/Software/tags/) with following highlights:
- support of DOG-M LCD modules with ST7036 controller
Just seeing that I don't have the mentioned ZIF daugher board, but it should be possible to add one without problems, just expand the SMD daughter board to the left and add a ZIF socket there.
Looks like someone was on to us for carefully scrutinizing chosen parts.
http://www.ebay.com/itm/NEW-Transistor-Tester-Diode-Triode-Capacitance-ESR-resistance-Meter-MOS-PNP-NPN-/221280589574?pt=LH_DefaultDomain_0&hash=item338559d706
Hi guys, what do you think about this:
http://www.ebay.co.uk/itm/DC12-Transistor-Tester-resistance-Meter-MOS-PNP-NPN-Diode-Triode-Capacitance-ESR-/290944824363
It seems to already have an ATmega328, 0.1% resistors, 8MHz crystal and software version 1.07(k).
What's unusual is the built-in 9v battery and a DC power jack for 7.5-12v.
I'm not sure what this means: "Fuse, from low to high: F7DCF9".
At the moment it would be difficult for me to just build a tester by myself - for various reasons. So I need to buy one, but I'm torn between this one and the one that Tony bought. The latter also has ATmega328/8MHz crystal/software 1.07, but no 0.1% resistors and no built-in battery. I'm not sure if the 0.1% resistors make much difference, and I'm worried that the built-in battery/DC power jack might add some unnecessary circuitry that might increase electrical noise. What do you think?