Hello, I have been looking for a transceiver for a while now without success.
I need to transfer data with low bandwidth (up to ~15 bytes per second), but for long range (~300m in field) between two arduinos. I have had a look at xbee's, but they are quite expensive and I am wondering if there is any cheaper alternative that would do the job. The best I have found so far is NRF24L01 module with some proper antenna, I am just not sure if that is the best for my problem.
I am planning to use virtualwire library if that changes anything.
I would really appreciate any response.
Thank you!
ivars211:
for long range (~300m in field) between two arduinos
I would be surprised if stock NRF24L01 radios would work at 300m. I think folks get 50m out of a pair of them. If you have the more expensive version with the power amplifier and antenna socket, they are said to go above 500m to 1km.