Radio and PIC

[Tagge]

Hi, Im starting a new project involving a PIC controlled device that loggs some measurments. And it has to be accessed thrue radio.
There could be several devices connected to a master thrue radio.
Kind of WLAN, but no TCP/IP is requested.
It will need to be contacted by the master about once an hour, read the stored data and maybe send an order to do something to the slave.
I looked at some radio protocols but havent decided what to use.
Have you good people any suggestions?
It would propably need some sort of sliding window or?
Is there any simple and relaible protocol to use?
Thanks/Tagge

[jecottrell]

I use Maxstream radios. They can be a simple wired serial replacement or you can dig into their higher capabilities. They have their own protocol for their wireless comms (that is transparent to the user). So you can get by without instituting your own protocol. However, I use a simple packet scheme that has basic error detection and retries.

Not sure if that helps, but as always, the hardest part is usually committing to a decision.

John

[Tagge]

Thanks jecottrell,
is your protocol for public use ?
I would love to see it, it could save me some grey hair
/Tagge