07-29-2022, 07:29 AM
The information you're giving is amazing CP!
Do you have any more suggestions for me?
When I plug in a 3.7 LPO battery on pins 1/3 and then a 10k 25c NTC from pins 2/3 and have the jumper removed nothing happens. When I apply power the system light turns on/white, about 2-3s later the ethernet light comes on for a half second or so and then the board appears to retry booting. I don't see any display output during this time.
If I leave the battery disconnected with the jumper removed the board exhibits the same symptoms of lights cycling on then off. The port has 0v across the +/- 1/3 pins at this time.
If I have the jumper on when the board is powered, but don't have a battery connected, I read 4.2v on pins 1/3 from the vbat port.
If I have the 3pin connector removed, I read 3.6v between pins 1/3 (little low, but plenty of power in the cell). The resistance between pin 2/3 is 9.98k.
Parts:
https://www.amazon.com/dp/B07LGL7S2G?psc...ct_details
https://www.amazon.com/dp/B01DUC1PW6?psc...ct_details
https://batteryhookup.com/products/2x-sp...ded-insert #individual cell I have on hand that I know is way overkill, but still a 3.7v L-Ion.
Do you have any more suggestions for me?
When I plug in a 3.7 LPO battery on pins 1/3 and then a 10k 25c NTC from pins 2/3 and have the jumper removed nothing happens. When I apply power the system light turns on/white, about 2-3s later the ethernet light comes on for a half second or so and then the board appears to retry booting. I don't see any display output during this time.
If I leave the battery disconnected with the jumper removed the board exhibits the same symptoms of lights cycling on then off. The port has 0v across the +/- 1/3 pins at this time.
If I have the jumper on when the board is powered, but don't have a battery connected, I read 4.2v on pins 1/3 from the vbat port.
If I have the 3pin connector removed, I read 3.6v between pins 1/3 (little low, but plenty of power in the cell). The resistance between pin 2/3 is 9.98k.
Parts:
https://www.amazon.com/dp/B07LGL7S2G?psc...ct_details
https://www.amazon.com/dp/B01DUC1PW6?psc...ct_details
https://batteryhookup.com/products/2x-sp...ded-insert #individual cell I have on hand that I know is way overkill, but still a 3.7v L-Ion.