2.4Ghz Transceiver Module (TRW-24G)

[ngeronikolos]

Hello boys and girls,

I am planing to use the TRW-24G Transceiver module 2.4Ghz to make an RF link.I want a 'client' and a 'master'talking to each other.The 'client' will have
4 pushbutttons and a LCD display.When I press a button a data with a useful info will transmit to the 'master' and the 'master' will send the data to a PC via RS232 and an answer to the 'client'.

Does anyone use that module with picbasic?
I need anything useful.
Please sample code,diagrams...

I have all the datasheets from Sparkfun.com and www.laipac.com.
http://www.sparkfun.com/datasheets/RF/RF-24G.pdf

Last but not least,because the RF module working voltage is 3V I must choose a pic working with 3v.
I am familiar with the series of PIC 16F.

Can you suggest me a Low Voltage PIC.



Thanks in advance
Regards
Nikos Geronikolos

[mister_e]

Most PIC may run great @3v .. it's all stated in a document called datahseet ;) It can also be oscillator speed dependant.. so better if you look at the document first

Most of the LF serie may run as down as 2V wich i tend to use to have a safe margin.

Those who can run for you 16F628, 16LF628, 16F876a..

Let's singing together... hum hum

datasheet, datasheet, datasheet, datasheet, datasheet, ......
datasheet, datasheet, datasheet, datasheet, datasheet, ........
boum tisss..whiz...
datasheet, datasheet, datasheet, datasheet, datasheet, ......
datasheet, datasheet, datasheet, datasheet, datasheet, ........
Yo... Yo....... read the datasheet first ... maaaaaaaaaan.

i always wanted to do a real song of it... interesting ;)

Begin easy with a single 'wired' serial communication then, use the Transceiver. It shouldn't be too much of a problem once the main core is done. Maybe some Manchester encoding could be handy... search the forum, there's a few tips on how it work and how to make it work.

Also, you'll probably need to mess around the SHIFTIN/SHIFTOUT statement to make it work with you transceiver... but also at the same time i guess it may not be as fast as the transceiver need... the PIC MSSP would do the 250Kbps to 1Mbps range (if my calc and memory are good) but i have some doubt on the SHIFTIN/SHIFTOUT. If some may set me straight on this one, i'll appreciate.


Interesting model so far... i guess it's time for me to order few of them. I'm pretty sure i'll need it one day or another.

[Ron Marcus]

The biggest problem with the 24Gs is the initial configuration of the module. Check the Sparkfun forum and use their examples to get things up and running. Try the transparent mode to get things started, then you can advance to the 'Shock Burst' (and awe?) mode. I have found the 16F690 to be the ultimate 16 series to date for communications work and it will happily chug away at 3 volts. I am sure that others will differ, but it has both hardware SPI and Async comms in a 20 pin QFN package. This is perfect for my tiny transceivers. Get the pinned version for prototyping, though.

Ron