nrf24l01 SMA Antenna - are two modules needed with antennas

Hello

Quick question as I can’t find the answer to my question.

I’m going to get an rf24 module with an sma antenna to extend a project, so the outside temp can be taken and displayed on the same oled display, which already shows an indoor temp.

Do I need two rf modules with sma antennas, or can it be paired with a regular rf24 modules with an on board antenna and still get a decent range.

Cheers

The modules with the PCB antenna will work fine with the modules with external antennas. However you may find that if the high-power module is too close to the other module they won't work.

...R
Simple nRF24L01+ Tutorial

I think they'll be too close, will have a play around with a regular module first. Just ordered a Keywish RF-Nano, which if works, will do the job.

If the receiver never transmits, then only the transmitter needs a power boost.

there is also stuff by Stanley Seow who got a 1km range with the standard external antenna.

JCA34F:
If the receiver never transmits, then only the transmitter needs a power boost.

Normally both of them transmit as the "receiver" usually sends an acknowledgement. This feature can be disabled, but then the "transmitter" has no means to know if a message was received or if it needs to be re-transmitted.

...R

Cheers people. I have gotten acknowledgements set up currently but good point.

I’ll have a look into those links, thank you.