SparkFun Forums

[Guest]

Hi all, i'm new to this forum. i have yet to try the trw-24g. i've been looking for a nice low cost transceiver for a product that i'm working on. i see from here that most people like the the trw-24g. but from what i see and have read maybe a transceiver with nordic's nrf905 may be better choice. same functions as with nrf2401 but lower freq and higher power, has a true spi interface, a carrier detect output, data ready output, and an address match output. Plus it still does the shock burst like the nrf2401 chip.

these are just my thoughts

Erwin

[Marco]

Hi Erwin,

Of course, as with any design decision: there is no general 'best transceiver', only a 'best' choice for your application. In your case, I think you also have to take into account that the 24g solution has a smaller antenna (pcb vs l/4), and higher data rate (1 Mbit/s) vs 100 kbit/s, and worldwide license free bands @ 2.4GHz.

I would also appreciate a carrierdetect bit! Maybe the Nordic guys can include it in a new 2.4GHz chip.

If you want easy interfacing to the rest of your system, you could also consider the nRF24E1 chip with built-in 8051 uC, on which you program your own protocol.

- Marco

[Guest]

I thought about using that, however i need the power of the mega128 on my receiving end, although bascom has a basic compiler for the 8051, and i need the more power of the 900mhz band so i can go get better range. well matbe for quick development time i could use the 2.4 gig and get product to market and then drop down to 900mhz band except the earlier versions wouldn't be compatable. lots to think about