Power & Source of Big Ideas

Dears The NanoPI R1 design is great. We have a problem however. We want to use a standard CR2032 battery for RTC clock backup. However this hardly works and the clock may reset even after short power outage. We tried many batteries and many R1 boards. And the results are unclear. Sometimes battery b...
Dears We use Nano PI R1. We have problem with RTC battery drain. We use conventional CR2032 battery. The current drain is 200 mikro Amper when the device is off and not connected to power source, which is much more than expected to keep Real Time Clock working. What's more, the device is very sensit...
I had the same problem with Nano PI R1. What I did is: 1) Buy http://wiki.friendlyarm.com/wiki/index.php/Matrix_-_TTL_to_RS232/zh 2) Correct bootargs at /boot/boot.cmd to console=tty S1 ,115200 3) Compile boot.cmd with mkimage 4) Use on my legacy Linux : chmod 777 /dev/ttyS1; cu -l /dev/ttyS1 ; ( No...