Looking for advice on what type of wireless communication I should use. Currently playing with NRF24L01+ and the range is very poor [About 10' line of sight ] no matter what I try.
As to the project is to send simple data approx. 40 feet through a brick wall and wood frame shed. Working with a Raspberry PI as a master and arduino as a slave. Not looking to break the bank but what type of module would be best for this task.
Any advice is greatly appreciated.
Thanks.
I had a pair of nRF4s with PCB antennas working perfectly at 110 metres outdoors. They probably would have had a longer range but after that distance I could not see to tell if they were working (poorly designed test 
)
I would be very surprised if they won't work very well over the range of 40 feet. And you could always try the high power version with the external antenna.
Have a look at this Simple nRF24L01+ Tutorial
...R
I use the inexpensive 433 MHz RX/TX modules with VirtualWire and get 300 meters range, line of sight and through one wall, by using dipole antennas on both TX and RX, as shown below. The antennas are connected to GND and ANT on the inner ends, and should be about 34 cm long from tip to tip.
Hi Robin ,
I have followed that tutorial every way I can with others. I cant get the pair to work on only channel 76. I have set PA to max and Data Rate to 250KBPS. Using a 2 amp 5 volt wall adaptor to provide power to both the arduino and the power board for the nRF24 radio. Is there anything else I'm missing that would affect distance?
I have also tried all 4 radios and power boards I have
Krieath:
Is there anything else I'm missing that would affect distance?
Post the code that YOU have uploaded to YOUR Arduinos and also post a photo of your hardware as it is while you are doing your range check.
...R
