[sdiy] wireless patching

[Roman Sowa]

PWM is digital output, so what's your point?
Using digital words over this radio module would require much higher 
bandwidth, they usually are limited to 100kbps, sometimes much less. 
Higher bandwidth models don't have keying input but take SPI or I2C, 
packetize it and send embeded in some protocol, sometimes with 2-way 
link. That creates latency.

As Matthias just said, this is what RC control uses, TDM-ed multiple PW. 
This is the best solution I think. One visit in RC store and your 
wireless connectivity project finished, just add filters to servo 
outputs of the receiver, as their output is PWM.

Roman

W dniu 2017-05-25 o 22:52, rsdio at audiobanshee.com pisze:
> FSK and ASK both assume digital input. If you want to send analog
> data, then you should be able to use standard FM, which can transmit
> analog signals. So long as the pilot frequency and the signal
> frequency survive the transmission, you should be able to reconstruct
> the analog signal on the receiving end.
>
> I do think that multiple CV would require multiple transmit
> frequencies and multiple receivers, though, to keep the signals
> distinct. That would be true with ASK/FSK or straight FM.
>
> Brian Willoughby Sound Consulting
>
>
> On May 25, 2017, at 2:29 AM, Roman Sowa <modular at go2.pl> wrote:
>> BT is no good for realtime. How about really simple $2 RF modules
>> that have FSK or ASK input? Not sure if you can freely modulate
>> with any PWM signal or is it quantized to some fixed data rate, but
>> common sense tells me that the simples cheapest module just drive
>> the radio directly. So you have wireless PWM link, and that's just
>> one step from CV.
>>
>> Roman
>>
>> W dniu 2017-05-25 o 01:13, Quincas Moreira pisze:
>>> Hey friends! If you were to design a fast and precise wireless
>>> transmission and reception system for eurorack, how would you doi
>>> it? Synth 1 > ADC > uP
>>>> Bluetooth > uP > DAC > synth 2 ?  Or is there a simple analog
>>>> way to
>>> do it with RF?
>>>
>>> I mainly want to send control signals, but as we know, those can
>>> be up in the audio frequencies or higher!
>>>
>>> The idea is to have like, 4 systems set up on 4 corners of a room
>>> and inter-patch them without stretching long cables all over the
>>> place. I think 8 sends and 8 receives on each remote patch box
>>> would suffice, and some system to match sends to receives.
>>
>
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