NRF24L01!

[jgu1]

Hi all!

Sorry I did not managed to get it work. Could maybe be these chinese module. I´ll find someone like John´s module.

Thank´s so far.

br

Jorgen.

[JohnCrow]

I also have a pair of the cheap ones, I originally bought to use with the Arduino, but never got them to work.
Just tried them with this program and they don't work with FC either.

Just to double check I connected the new boards back and they still worked.

Conclusion, the cheap ones are duds

With things like this its worth paying a bit more to be sure of getting a good one.
Ok there are a lot of bargains to be had but when you are developing something like this it helps to have one less unknown.

[kersing]

When testing, what is the distance between the devices? I'm asking because if too close the transmitted signal might be too strong resulting in saturated input and reception issues. For the LoRaWAN devices (868MHz ISM band, transmitting at 14dB) I'm currently using the advice is to keep at least 3 meters (about 9 feet) between devices.

[electron67]

Hello Kersing

You could publish the flow chart with which your transmitters are functioning would support understanding the use of component commands; and if they work well for flowcode 6 would be great

Enrique

[kersing]

Hi Enrique,

That flowchart is for totally different modules with a different interface. Posting it won't help for the NRF modules.

[electron67]

Hi Kersing

I also took time experimenting with RF components and the only one that has worked for me is the zigbee but is more expensive than the NRF I can buy 1 dlls each, the problem for me is the transmission distance, this component has good price but have failed communication in the examples (I have flow6), I probe also eb063 433 transiver job well but the example 12 inches distance, I think I have something wrong, but the job very well zigbee 100 meters, but costs 40 dlls; if the NRF would work as ZigBee to be great but more economical; with some components provides support us an example that works to understand how to program (sorry for my english)

[JohnCrow]

Having proved the boards & the component all worked as expected, I tried to send more than 1 data value in a loop.

My initial program did not work, so after a bit of thought, I came up with these small test programs which send 2 values in sequence and display them on line 0 and line 1 on the LCD.

My problem was I was sending or reading the buffer between values which was resetting the data, instead of only once at the start of the loop.

The basic procedure for sending multiple bytes is
WriteTXByte0 = Data 0
WriteTXByte1 = Data 1
WriteTXFifo To Send The Data

The basic procedure for reading multiple bytes is
ReadTXFifo To Read The Data
ReadRXByte0 = Value0
ReadRXByte1 = Value1

Simple test files are attached below

NRF24L01_TX_SimpleDual.fcfx

Simple 2 Channel Tx

(8.28 KiB) Downloaded 405 times

NRF24L01_RX_SimpleDual.fcfx

Simple 2 Channel Rx

(10.21 KiB) Downloaded 373 times

[left]

Hi, I would ask you if / how can I measure (read) the strength of signal?
thanks

After research, I found that isn't possible read this info.
thanks anyway