Post Last Edited by Adam at 2014-8-8 08:37 |
Post Last Edited by Adam at 2014-8-8 02:39
Hi, after adding RTC Battery just added Li-Io ACCU (based on PcDuino v3 idea) as backup battery. For tests purposes just connected spare accu from my handy - 2000mAh. Didn't set any charge parameters. Measured charge current is 350mA (accu was already 3,8V). BananaPi starts only with on board power button, but shutdown in raspbian result in reboot not power off. Only long press on POWER button result in power OFF. I'd like to add Charge-LED but that need very precise soldering on pin 36 AXP209.
Conected Li-Io accu.
OK. some new.
CHGLED is soldered:
Soldered SMD LED and resistor.
Flashing when charged , still ON when full.
from shell we need to activate LED and set some charge parameters:
sudo apt-get install i2c-tools
sudo i2cset -f -y 0 0x34 0x32 0x52 (flashes 1second)
sudo i2cset -f -y 0 0x34 0x33 0xD2 (500mA charge current)
sudo i2cset -f -y 0 0x34 0x34 0x14 (flashes when charging, time out 6Hours)