Hello,
For my project with A13-OlinuXino-Micro, I have to create a circuit in order to make the board battery powered. So, do you think that a dc-dc voltage converter would be enough (raise voltage from 3.7V to 5V and use this battery (http://"https://www.olimex.com/Products/Power/BATTERY-LIPO1400mAh/")) or do I need something else?
Also, about the charging circuit, can it be on the board, or will there be a conflict with the existing powering circuit? I mean, could I just use something like this (http://"https://www.olimex.com/Products/Power/USB-uLiPo/")?
I know that the normal A13-OlinuXino is better for portable apps, but for the needs of my project I have to modify the battery circuit on my own!
Thanks in advance!
Hey lordlothar,
You can use the 3.7 battery and USB-lipo but you will need own converter 3.7V -> 5V (taking in account the voltage difference in fully charged to fully discharged battery).
Note this setup will probably consume a lot of power.
Best regards,
Lub/OLIMEX
Hey,
Thanks for the reply! I am aware that power consumption will be much higher than if I used AXP209 IC. Another question, could you tell me how much current is required at most, for A13-OlinuXino-Micro PLUS A13-LCD7-TS setup? I have roughly calculated 1A taking in account the datasheets. Is it correct?
Thanks again,
Dimitris
How about using the circuit from the Maxi?
also found this with some good links.
http://arduino.cc/forum/index.php?topic=119175.0