nRF24L01+ , failed, response timed out

Hello, I am using nrf24l01 + modules but I have this problem, I put 10uf capacitor between, negative and positive pins but it is still the same problem, how can I solve this problem? Thank you

Have a look at this Simple nRF24L01+ Tutorial.

Wireless problems can be very difficult to debug so get the wireless part working on its own before you start adding any other features.

The examples are as simple as I could make them and they have worked for other Forum members. If you get stuck it will be easier to help with code that I am familiar with. Start by getting the first example to work

There is also a connection test program to check that the Arduino can talk to the nRF24 it is connected to. If the first example does not work be sure to try the connection test for both of your Arduinos. Nothing will work if the connection test fails.

A common problem with nRF24 modules is insufficient 3.3v current from the Arduino 3.3v pin. This seems to be a particular problem with the nano. The high-power nRF24s (with the external antenna) will definitely need an external power supply. At least for testing try powering the nRF24 with a pair of AA alkaline cells (3v) with the battery GND connected to the Arduino GND.

If you are using the high-power nRF24s (with the external antenna) it may help to have a distance of about 3 metres between the two nRF24s so that the signal does not overwhelm the receiver. However someone on the Forum has had them working without that separation - I don't have any personal experience with them. If you are new to nRF24s it may be better to start with a pair of low power modules with the pcb antenna.


Thanks for your reply

it seems to me that I solved the problem by adding "radio.setAutoAck (false);
"Radio.begin ();
radio.setAutoAck (false);
radio.openReadingPipe (0, address);
radio.setPALevel (RF24_PA_MIN);
radio.startListening (); "

it seems to me that I solved the problem by adding "radio.setAutoAck (false);

That means your Tx has no means to know if a message was received successfully and no opportunity to retry if it was not.