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Still at a loss on this. I do notice I'm getting battery voltage at the welding tips when it's not pulsing (in normal 2.2 programmed mode, not test mode) which the youtube video says should be 0V. I hope the 2.2 pcb file didn't have a problem. I've ordered parts to make a few more of these to test just to see if the first one I assembled was a dud but it's not my first rodeo with SMD soldering. I usually do things smaller than 1206 though :)
Flashed the nano into test mode. jump the foot switch header with auto pulse off.Power supply in is 12.89V (it's a 12V wall plug). Nano D5 and pin 2 of the mosfet driver is 5V. LED is 2V but on. Mosfet gates on all 8 of them are 4V
Well I have it all built without R13 populated. The device notices when both probes are placed as the LED flashed but I get no actual welding pulse out of it. Where would you start troubleshooting?
I have a question! The silkscreen for the 2.2 version has 20k resistors for R1, R13 and R14. The 2.2 version BOM only has 2 resistors of this value needed.Is one going to not be populated, is the silkscreen value off on one, or is the BOM incorrect for v 2.2?
I'm not the one who did the video, I think I know which specific one you're talking about though.
1. Yes you can install a magsafe2 cable in a magsafe charger and it works fine. I've done it to several.2. No difference noticed.3. Yes they're the same electrically, just the end is different.
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