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RE: [Paparazzi-devel] BL ESC

From: akochevar
Subject: RE: [Paparazzi-devel] BL ESC
Date: Thu, 30 Aug 2007 20:22:55 -0700
User-agent: Web-Based Email 4.10.19

If you dont get an ESC with "fixed throttle" mode, the controller will guess what pulse width value is 100%.  Typically you see that 50% pulse width turns out to be 100% throttle(we saw this on the phoenix 10).  So until the controller figures out the full range of travel the actual throttle will be nearly 2X the desired, but once the controller gets to full it figures everything out and adjusts accordingly.  If you want to use a "dumb" controller, just before every flight run the throttle all the way to full throttle before taking off, this allows the controller to learn the full throw, and everything should work fine.

-------- Original Message --------
Subject: [Paparazzi-devel] BL ESC
From: Matthew Currie <address@hidden>
Date: Thu, August 30, 2007 6:59 pm
To: Paparazzi Devel <address@hidden>


  Permission to play dumb here but I do not have a lot of time to examine code, etc.  I would like to get an explanation as to what type of ESC is required to operate with the Tiny13.  There was mention that it cannot be a type with auto arming or similar.  High quality ESCs available domestically in my area have two distinct product lines, one being half the price of the other yet same current ratings but lacking half the luxury features including "throttle mode" which sounds suspicious.

Matthew Currie
Nanaimo, BC Canada

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