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

From: Simon Wilks
Subject: Re: [Paparazzi-devel] Lisa/M Power Input Inquiry
Date: Fri, 20 Jan 2012 22:29:23 +0100

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 wiring):

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 correctly.  


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

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