pkshima
Member
Hi,
All I want to do is to have a biderectional wireless data link between two PICs. I have been searching the whole net but couldnt nail down which RF module is right for me. So thought of seeking guidance here.
For the time being I am going to use them for remote controlling my bot. PIC attached to PC will send control signals and PIC on the bot will send back sensor data.
So far I can only imagine that either i have to buy 2 pairs of RX/TX pairs or 2 tranceivers.
1) I am unable to judge if I need an ASK type, GSK type PSK etc etc type. been long since i was taught that
2) With tranceivers, would I have to code up extra to handle its half-duplex/full-duplex nature.
3) With RX-TX pair, how would i ensure that the right pairs are formed so that the PC is not talking to itself and robot doesnt start talking to itself.
4) Can you help me choose one from https://www.sparkfun.com/commerce/categories.php?cPath=16_79
and
https://www.sparkfun.com/commerce/categories.php?cPath=16_114
and
**broken link removed**
5) Any hints on where to find the best price.
The ones used in Nigels tutorial seem to be a bit costly compared to above devices.
I beleive i am ok as per the legal issues given my purpose and the range supported by the above devices.
All I want to do is to have a biderectional wireless data link between two PICs. I have been searching the whole net but couldnt nail down which RF module is right for me. So thought of seeking guidance here.
For the time being I am going to use them for remote controlling my bot. PIC attached to PC will send control signals and PIC on the bot will send back sensor data.
So far I can only imagine that either i have to buy 2 pairs of RX/TX pairs or 2 tranceivers.
1) I am unable to judge if I need an ASK type, GSK type PSK etc etc type. been long since i was taught that
2) With tranceivers, would I have to code up extra to handle its half-duplex/full-duplex nature.
3) With RX-TX pair, how would i ensure that the right pairs are formed so that the PC is not talking to itself and robot doesnt start talking to itself.
4) Can you help me choose one from https://www.sparkfun.com/commerce/categories.php?cPath=16_79
and
https://www.sparkfun.com/commerce/categories.php?cPath=16_114
and
**broken link removed**
5) Any hints on where to find the best price.
The ones used in Nigels tutorial seem to be a bit costly compared to above devices.
I beleive i am ok as per the legal issues given my purpose and the range supported by the above devices.
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