Problem: I cannot successfully execute the "Simple one way transmission" demo code from Post #2 of Simple nRF24L01+ 2.4GHz transceiver demo . The transmit side reads endless lines of "Data Sent Message 0 Tx failed" while the receive side shows only "SimpleRx Starting." Background: I have been attem…

The problem was hardware related. The filter capacitors were not connected to the ground plane on the NRF24L01+ Power Module PCB. This was tested using a multimeter checking for continuity (shown in the picture below). [Continuity Test 1] The points tested were the ground pin of the module and th…

[image] justin1: DroneBot Workshop's tutorial See time 10:29 re miss labeled pins.

Thank you, but I have tried that. The programs still do not function properly. Furthermore, when I run the CheckConnection.ino program it fails.

[image] justin1: Furthermore, when I run the CheckConnection.ino program it fails. Maybe faulty modules or wiring then ?

[image] justin1: Furthermore, when I run the CheckConnection.ino program it fails. Can you expand on this? What does the CheckConnection sketch show in the serial monitor?

[image] markd833: What does the CheckConnection sketch show in the serial monitor? Swapping the MISO and MOSI pins yields the following result. CheckConnection Starting FIRST WITH THE DEFAULT ADDRESSES after power on Note that RF24 does NOT reset when Arduino resets - only when power is r…

[image] srnet: Maybe faulty modules or wiring then ? I have tested 6 different modules from two different suppliers in both transmit and receive roles. It seems improbable that all units are faulty. If the wiring was incorrect wouldn't the CheckConnection.ino expose the problem?

Post #6 appears to show that register reads to the NRF24 are all returning 0xFF .............................. From the printout you posted; If the numbers are mostly 0x00 or 0xff it means that the Arduino is not communicating with the nRF24

There are examples with the library that work , start with those ?

In Post #6 , I swapped the MISO and MOSI pins to show that the connection order was not faulty as LarryD suggested in Post #2 . Markd833 requested the CheckConnection.ino readouts from the swapped configuration in Post #5 . This is what Post #6 is showing. The original configuration appears to pass Ch…

[image] hammy: There are examples with the library that work , start with those ? I have tried the RadioHead library "nrf24_server" & "nrf24_client" examples and the RF24 library "GettingStarted" example. They have not yielded successful results either. They behave similarly to the "SimpleTx"…

Troubleshooting help for "Simple nRF24L01+ 2.4GHz transceiver demo"

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markd833 March 9, 2023, 8:32am 5

Can you expand on this?
What does the CheckConnection sketch show in the serial monitor?

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Troubleshooting help for "Simple nRF24L01+ 2.4GHz transceiver demo"

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