Diseqc control anyone ?

[F1CHF]

yes you are right, seems similar to IR protocol
Henri what do you mean bye "The CCP moudle can generate a 22kHz"
there are two options : External 22 Khz generator or if the pic is free, have a process to do that ..
They said "nominal 22 kHz (±20 %)" so a simple NE555 could be OK

I must make a prototype, as I have some Disecq LNB switch to test, I will be able to verify
problem is to fond some more time !
This was the first objective of my first message "already done by somebody" hi ...
Thanks
Francois

[HenrikOlsson]

The CCP module can be setup to generate a 22kHz squarewave. Use an external filter to turn it into a sine and attenutate it 650mV, then use a rail-to-rail OP-Amp to buffer it and (I'm guessing) AC-couple it onto the coax. Then it's just a matter of turning the CCP module on and off with the correct timings to get the signal out.

I don't know, you may be able to just attenuate and AC-couple the square wave directly onto the cable.

Do you have a PIC already that you wanted to use?

[CuriousOne]

Devices like this can be used for this task:

http://www.ebay.com/itm/SatLink-WS-6...0AAOSwc1FXbKjD

Also, as I said, I've generated diseqc commands in sound editor. Then recorded to phone, and built simple circuit to allow it to be transferred to switch.