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Re: [Paparazzi-devel] Hexacopter

From: Cedric Marzer
Subject: Re: [Paparazzi-devel] Hexacopter
Date: Wed, 4 Apr 2012 07:08:16 +0200

Thank you for your answer and for the link.
I am still wondering why it is written that the pwm actuator is for stm32 only.
Is it because there is a timing problem with the LPC ?
Or is it just because nobody has taken the time to write it ?
Or is there another subsystem to drive the ESC with PWM ?
Is there an expert that could answer that question ?
Thanks in advance

Le 4 avr. 2012 à 00:06, Simon Wilks a écrit :

I don't know about it's suitability in general but to get around the PWM problem you could use an I2C to PWM converter like this

If you are using the DJI ESCs they will be fast enough to make the setup probably still fast enough given the 2-3ms delay in the conversion step.

Here is a sample hexa airframe config with the matrix:


On Tue, Apr 3, 2012 at 11:00 PM, Cedric Marzer <address@hidden> wrote:
Hi all,
I am putting together some of my old hardware and some new one to make an hexacopter.
I have a new DJI F550 frame with the pwm esc.
My old autopilot board is a tiny.
I just ordered an aspirin IMU.
Is there a chance I can make it work ? I read that the pwm is just for STM32. Is there a way to make the DJI ESC work with the tiny ?
By the way does anyone of you have the matrix for a regular Hexa ?
Thanks in advance
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