I made a temperature, humidity and pressure detection unit with the DHT22 and the MB280 for pressure. The system transfers the temperature and humidity data perfectly but I cannot get the pressure data correctly. I attach the sketcks If anyone can help me solve the problem The file name is with DHT11 but in reality there is inside DHT22
More members will see your code if you post your code as described in the forum guidelines.
Please include short programs in your Post using the code button </> so we don't have to download them.
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.
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.
...R