NRF24l01+ vs. NRF24l01+ pa + lna
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I cannot see any more activity on this topic, but I have the same situation.
About year ago I bought ebay model with antenna and it worked perfectly and solved my range problem for gateway.
Now I ordered again from ebay (2 different stores, similar price) but on same arduino , when I replace old NFR24 with new ones (I got 5 different NRF modules) it doesn't work properly.
Also if I put NRF24 without antenna it works fine,
None of that ugly fix worked for me (shielding with alu, external power supply....)
Please note that old NRF24 work without any "ugly fixes", directly connected to Arduino Nano 3.3 (3uF capacitor only).
Also note that NRF24s without antenna work even without capacitor.So my question is simple: can anyone differ good ebay NFR24 with antenna from a nonworking one. I spent not only money but also a lot of time (waiting items from ebay that dont work) without success.
Now I only can cry that I didnt order more pieces of that "old" model I had.
But I hope someone will be able to tell.Currently I got 5 nonworking and 1 working with antenna, and 10 working NRF24 without antena.
@Igor-Antolić I assume you have been experimenting with the
#define MY_RF24_PA_LEVEL RF24_PA_LOW? The '+PA+LNA' have a habit of "over shouting" themselves. -
In my case, the most important things for a successful communication are:
- A good 3.3V power source (I used an adapter for nrf24l01 + with AMS1117);
- A 10uF capacitor (very important). In my case a 4.7uF capacitor was sufficient to pilot the nrf24l01 + PA + LNA at RF24_PA_LOW level.
