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Re: [Paparazzi-devel] FrSKY Radios

From: Jeremy Reinertsen
Subject: Re: [Paparazzi-devel] FrSKY Radios
Date: Thu, 5 Apr 2012 20:50:46 +1000

I also read about the low baud rate limitation. With paparazzi, you could configure a low baud rate telemetry message to suit the data link. Not ideal in every case but, on a micro UAV, you could save the weight and power consumption of the PPM encoder and xbee with a single FrSKY receiver.

----- Original Message ----- From: "Gareth Roberts" <address@hidden>
To: <address@hidden>
Sent: Thursday, April 05, 2012 8:30 PM
Subject: Re: [Paparazzi-devel] FrSKY Radios

Hi Jeremy,

I'm using DFR-4 FAAST compatible receivers with a T6EX-FAAST & Umarim and so far they are working excellently. They are also lightweight (the one I have is 4 channels, but outputs 7 PPM channels) cheap and widely available. I briefly looked at telemetry, I read somewhere on't internet the issue is the maximum baud-rate is not in fact the advertised 4800bps and it starts dropping packets silently, but I could be wrong. There was an effort to get APM2 mavlink running over it.

At some point I hope to use the PWM RSSI output which the modules also provide in CPPM mode.


On Thu, 05 Apr 2012 11:15:39 +0100, Jeremy Reinertsen <address@hidden> wrote:

Hi folks,

Anyone else using FrSKY 2.4GHz radio equipment with their Paparazzi autopilots?

I have been using a DJT module in an old JR radio and the D8RSP receiver. Their P series receivers have a "CPPM" output which is directly compatible with LPC based Paparazzi autopilots without the need for a seperate PPM encoder. See

They offer bi-directional telemetry which can be configured for use as a low baud rate data link and also offer a number of telemetry sensors which could be interfaced directly with paparazzi autopilots. They openly publish their communication protocol so there is very little reverse engineering required for sensor integration.

Jeremy  _______________________________________________
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