this is disappointing. I had everything hooked up (device + solar). I charged the battery full - and put it outside at night. In the morning charge was down to about 65%
Problem 1: Solar charge - started out fine - charge climbing from 65% upwards. But then suddenly showed 100% charged - then a few minutes later - the real charge - then a few minutes later again - 100% - and so it cycled. In 4 1/2 hours it only managed to reach a charge of 82% - so from 65 -> 82% = 17% which would be equal to about 350 mA? of charge put into the 2000mA battery. - So charge algorithm is defiantly off - or charge circuit is not working.
Problem 2: board wifi -> access point dead…
Well as you might guess - 82% was not enough power to keep it running overnight. So it died in the early hours in the morning. After which - at first light - it woke up again - but once sun hit the panel (not just indirect light) - SLAM - something went wrong - and device no longer connects to any access points - and there is now a high pitched “whine” (sounds like capacitor whine) coming from the board. I have tried updating firmware - I have reset config from website. I have manually tried to add my access points to the wifi-board - and nothing helps.
Guys - I think this hardware is not tested with solar panels - or at least not 18v/10watt solar panels.
My board is now unusable - apart from with direct USB connection - but that does not give me any help does it?
I don’t really feel like debugging your hardware as I would have to download Eagle. But maybe if you post a pdf of your schematic I could figure out what is wrong.