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Ivan2021-08-17 09:21:19
Arduino
Ivan, 2021-08-17 09:21:19

Does NRF24L01+PA+LNA have a life of its own?

Good afternoon.
There is a set of NRF24L01 + PA + LNA modules, one with an antenna and an amplifier, the second with a built-in antenna.
I use adapters for power.

The essence of the problem is that they work as they want, there is no stability. Selected the cleanest channel. The last time it happened that I connected a battery to the NRF24L01 + PA + LNA receiver, it worked fine, I connected the power supply (I tried several different units) and it stopped working. I saw somewhere else that capacitors were soldered, but I did not understand which ones and where.

Maybe someone has already curbed these modules and have advice on how to stabilize the connection?

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2 answer(s)
I
Ivan, 2021-08-30
@Shucach

Found the solution, thanks for the advice.
I changed the power supply and connected the power supply of the module directly to the source, and not to the arduino.
Maybe someone will help.

V
VitGo, 2021-08-19
@VitGo

This module is quite demanding in terms of power supply.
a 10-20 microfarad capacitor is required for power supply!
in theory, there should be in the adapter ....
according to my practice, watch the power and then the antenna (there are silly or maybe there is no contact somewhere when connecting the antenna)

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