So I’m trying to provide the power to J101 board through UART pins but I didn’t seem to find any resources for the same. I also have the Nvidia jetson nano developer kit B01 and it gets power on when I connect the waveshare ups power module for jetson nano to UART pins. I also went through the data sheet for j101 board but didn’t find any information on how to power up through UART. If you guys can guide me on how to do it, it’ll help me a ton.
Thanks in advance.
I’m not quite sure what you mean. The statement about powering J101 with UART seems a bit strange.
You provided a Waveshare UPS link, so I’ll assume you want to connect the UPS to J101. However, the UPS uses I2C and is intended to automatically switch to battery output when the external power is unavailable, ensuring the system runs without failure, rather than assisting with startup.
If you really intend to use the UPS on J101, I suggest checking your wiring for errors, following the connection as shown in the UPS documentation.
Thank you for the reply. You are correct I do want to provide backup in case of power failure. Also I checked the connections multiple times for any loose contact or wrong connections and I can assure you that it’s not an issue of wrong or loose connection. As I mentioned earlier, same UPS module works on Nvidia board but not working with J101 board. I am kind of new to this hardware thing hence I don’t know much how to debug or fix this issue. If you can suggest any ways to check for any other issues, I can try that. Board is getting power on from USB-C pin so I can say board is working.
Do I need to connect type-C power pin along with UPS or it’s just enough with UPS connection alone?
Let me know if you need any other information. Thanks a lot again for your help 
