Lipo Monitor

[Vallekano]

Hello,

Many connection diagrams are prepared to monitor the battery:
http://multiwii.googlecode.com/svn/trunk/Doc/Diagrams/

As I see it, join the positive and negative battery with a resistor, and from these to pin A1.

What value would have to have the resistors? Is there a site where it is explained how to connect the battery to use this functionality?

Thank you.

[kalle123]

Paul uses on the divide et impera board

http://flyduino.net/Divide-et-Impera-Universal-Board

a 51k on the + side and a 33k on - side. See the manual on that page.

BR - KH

[Th0rsten]

Just take a trimmer or poti (100k) and set it to output 5V (on its middle pin) for a full LiPo to A3.
Connect one outer pin to + and the other to -
That's it.

Code: Select all

12,6V ------------------------------
                      |
                      |
                      |/
                      O---  5V to A3
                     /|
                      |
                      |
GND ---------------------------------

You may have to change:
#define VBATSCALE 131 // change this value if readed Battery voltage is different than real voltage

BTW: It's A3 on a ProMini
#define V_BATPIN A3 // Analog PIN 3
and A0 on the Mega
#define V_BATPIN A0 // Analog PIN 0

Greeting...

[Vallekano]

Paul uses on the divide et impera board

http://flyduino.net/Divide-et-Impera-Universal-Board

a 51k on the + side and a 33k on - side. See the manual on that page.

BR - KH

Thanks, I'll try asap