RE: [Paparazzi-devel] Best approach for implementing heartbeat toexternal failsafe device (2010 OBC)

[mark.griffin]

Hi Adam,
I guess you're preparing for the Outback Challenge.
I looked into this aspect and believe that the 1Hz pulse from LED1 is
sufficient. Do you concur?
Mark

-----Original Message-----
From: address@hidden
[mailto:address@hidden On
Behalf Of Adam Amos
Sent: Thursday, 19 August 2010 10:56 AM
To: address@hidden
Subject: [Paparazzi-devel] Best approach for implementing heartbeat
toexternal failsafe device (2010 OBC)

Hi All

I need some advice on the best way to output a heart beat signal in the
form
a voltage transition at regular intervals of at least 1Hz which will be
interpreted by an external failsafe device (Millswood Engineering).

My current thoughts are to try and use a module to oscillate a 1V signal
on
the SPI port of my TWOG. Or alternatively simply attach the clock signal
of
the SPI port to the external failsafe device. 

Is this the correct approach? 

Adam Amos
Student Engineer | RescueRobotics.com.au
address@hidden
Ph: +61424 642 578 


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