I am using 2(possibly more) nRF24L01+ in my project, and I am confused about one thing.
Almost all the same code goes for all the nodes. How do I setup an easy way to way to write node specific code?
For example I have:
#define RADIO_NUMBER 0
How do I use the same method to decide which pipe to use for writing an AckPayload? I guess something like this?
radio.writeAckPayload(!RADIO_NUMBER, &foo, SIZE);
Please, any guidance is appreciated
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. 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.
The Tutorial includes an example for a master and 2 slaves that can easily be extended to a larger number of slaves.