Stamp talking to transmitter via trainer port

gonwei

Hi,

Does anyone has experience in using Stamp module to generate pulse and send·the signal·via a Futaba transmitter thru trainer port connection? The trainer port is·of a·DIN 6-pin configuration. How should the stamp and trainer port be connected? All ideas are welcomed and appreciated.

Thanks in advance!!

kevin

stamptrol

The idea of the trainer port is to have a "co-pilot" standing by in case the "pilot-in-training" gets into trouble.

I don't have the Futaba docs ( which is what you need to Google first) in front of me but I expect its one of two possibilities:

1. the DIN plug will accept standard servo pulses ( 1mSec - 2mSec) which the stamp can replicate quite well.

or

2. the DIN plug takes resistive pot signals from a set of auxilary joysticks.

Keep us informed of your progress. This will probably be of interest to several folks here.

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Tom Sisk

http://www.siskconsult.com
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allanlane5

Having reviewed the Futaba documentation on-line, it looks like the 'trainer' port is intended to get a pulse-train signal. The pulse train has incorporated into it a 1 mSec 'sync', then pulses indicating the positions of the servo on each 'channel'. A Futaba controller having 4, 6, 8, or more channels -- each channel indicating control of a servo.

I'm not certain what voltage levels this port uses, or expects, so that could be a problem. The easiest way to discover this would be to put a logic analyzer on the data pin, and record what's going on in real use.

I'm not sure what this would achieve. I mean, you'll have an "open loop" control (no feedback) of whatever your target (airplane, car, whatever) is. I believe the 'trainer port' does get the generated pulse train BEFORE it's RF-encoded, so that may make this do-able.