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Mar 04, 2007, 02:22 AM
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The Hitektrum DX-5


Decided to fully bypass the Hitec/GWS equipment to support autopilot commands and flight controls. A number of reasons conspired in its favor.

PWM reverse engineering wasn't debugged yet, would take a lot of clockcycles, and probably wouldn't be very accurate.

The single GWS receiver would be much lighter and simpler to interface than dual receivers.

The wiring to get PWM data from the GWS was horrifically complex.

Custom modulation might get better results from the GWS.

Mounting electronics is much easier when you have only 1 transmitter.

Now the bad news:

Unless you have a heroine to lift tons of batteries, you need to power the transmitter breakout board using the transmitter battery, but you can't program the breakout board when the transmitter is on. Too much interference.

Certain items like the autopilot enable switch need shielding from the transmitter.

You need a way to switch between the Hi-tec's modulation and the custom modulation.
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