First of all: my compliments to the staff of armbian for the important work done.
I bought some lamobo r1 boards to use in a production environment such as (open)vpn router to realize a tele-service with PLC. I installed bananian (the first distro that I found on internet) but after a week I switched to armbian trying to create my own image from scratch. Very well, I like to have control over things.
The question is: I should connect a lipo battery to the board so that when the main power goes off a daemon script syncs sd and then shutdown, but when the main power is reconnected the board must do a reboot automatically.
It is possible to do this? Where should my daemon script look under /sys ?
I already tried to connect a lipo battery but I burned a board (maybe it was already broken, or maybe I wrong the polarity). With my tester on a new board I found that the battery connector has + inward and - to the outside, but I would like to know, before burning another board, if anyone has actually tried to connect a lipo battery. My battery is minimal, 3.7V 600mAh.

greetings
Giorgio

The question is: I should connect a lipo battery to the board so that when the main power goes off a daemon script syncs sd and then shutdown, but when the main power is reconnected the board must do a reboot automatically.

It is possible to do this?

 

No way, you would've to press the power button when powering through the battery connector. Please remember you're dealing with toys (SoC/PMIC made for tablets and not for work). Before you continue wasting your time better visit http://linux-sunxi.org/Lamobo_R1and the various threads here where the hardware flaws of the switchboard are discussed.

 

Try to get a refund for the boards or throw them away