NRF24L01+ and NRF24L01+PA-LNA problems - testing in progress
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Hi all,
i found this link:
It seams to explain some of the problems i'm having.
Can anyone confirm this?
Thank you in advance.
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@pw44 - well, today i dismantled both gateways and built the ESP8266 (Wemos D1 mini) with NRF24L01+ (board antenna) and a sensor (door) with a nano v3 with NRF24L01+ (board antenna).
working with no problem until now.
seams that NRF24L01+ (board antenna) to NRF24L01+ PA LNA does not work as expected......
Will continue testing and post the results.
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I have NRF24L01 PA LNA on my gateway and plain NRF24L01+ on my nodes for years. No problem with compatibility between them. You might just have faulty PA LNA module.
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@monte thx for your answer.
which kind of gateway do you have? serial, rj45 or wifi?
the problem i had with all 4 NRF24L01 PA LNA i have.
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@pw44 I have two different setups with Raspberry Pi gateways. One uses black noname PA LNA with external antenna, the other one uses Ebyte E01-ML01SP4 with antenna on a pigtail.
You can try shielding PA LNA modules with some aluminium foil and electrical tape. And don't forget about proper filtering of the power rail with big enough caps, and/or changing power supply to see if it makes any difference.
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i always had problem with that nrf pa lna, i suggest to get this one nRF24L01 PA LNA from Aliexpress
and thank me later. those type you have in your link are nothing but problem, i have few if anyone wants let me know pay me shipping and they are yours.
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@wiredfrank could you expand on which link you are referring to? Where is the link shown? I can't find it.
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@wiredfrank 100% agree. Dodgy antennas have been the bane of my existence with mysensors. When needing the long range. DO. NOT. CHEAP. OUT.
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What @wiredfrank said. Don't use these unshielded PA device in the first place.
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@mfalkvidd i was referring to un-shielded NRF24L01+PA-LNA radio modules. for me they never worked and even those ones worked had very power reception even in same room.
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I have two cheapo ebay NRF24L01+PA+LNA. As has been posted elsewhere nearly all are fake. I only use one at a time for my gateway. I had to do lots of fiddling to get them to communicate with my nodes . This included shielding and using an aluminium plate as a ground plane (someone criticized this but it worked for me). Ive posted about it somewhere on here. More recently I took delivery of a shielded Ebyte module and it has worked great. I have loads of the cheap NRF24L01+ modules in my nodes. Some I have added 12.5cm antennas and some dipole antennas. It does make a difference if drop outs are a problem on the more distant ones.
