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Re: [Paparazzi-devel] Lisa/M Power Input Inquiry

From: Bruzzlee
Subject: Re: [Paparazzi-devel] Lisa/M Power Input Inquiry
Date: Sat, 21 Jan 2012 13:01:05 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:9.0) Gecko/20111222 Thunderbird/9.0.1

He Chris
I've documented my research on:

At the moment I power the board with 5V from an USB-Port.

In the attachment you'll find a second wiring option.


On 21.01.12 01:04, Chris Wozny wrote:
Thanks Simon,

What I did for now was just powered the board over microUSB since I am
currently only trying to build and flash Lisa/M. I will take the
information you provided and post it on the wiki.

- Chris

On Fri, Jan 20, 2012 at 2:29 PM, Simon Wilks<address@hidden>  wrote:
Hi Chris,

There are several ways to do it. You can have a look at this thread which
talks about this (and there are others, search for

I did it similar to Eduardo and connected 7V using a BEC to VIN and the
VBATT goes directly to the DC power's (Lipo in my case) positive wire which
will let the Lisa M monitor the actual battery voltage. The allowed power
range is 5V (I just tried it and it worked) through to something over 20V
apparently. Can't recall exactly. But something like 11V - 16V is the around
the range you get from 3S - 4S Lipos.

Ampere ratings shouldn't be too important as long as it isn't too low. The
board takes what it needs. From my measurements normal operation with XBee,
Spektrum Satellite and GPS attached seems to draw around 0.2A if I recall


On Fri, Jan 20, 2012 at 9:43 PM, Chris Wozny<address@hidden>  wrote:

We are currently using Lisa/M for a research project. There are some
crucial (yet simple) pieces missing from the documentation with
regards to power input. We are using a DC Power Supply to power our
board initially and are confused as to how to actually power it. For
the Lisa/M power input, are we to use VBATT or VIN? What voltage
should we use to power it from a DC power supply? Also, should we
limit the current to a certain milliamperage so we don't fry the

Chris Wozny
Chris Wozny
University of Arizona MAV
Paparazzi-devel mailing list

Attachment: LisaMWiring_2.png
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