RF24Mesh_Example_Master.cpp

Raspberry Pi Example Sketch

This example sketch shows how to manually configure a node via RF24Mesh as a master node, which will receive all data from sensor nodes.

The nodes can change physical or logical position in the network, and reconnect through different routing nodes as required. The master node manages the address assignments for the individual nodes in a manner similar to DHCP.

 
#include "RF24Mesh/RF24Mesh.h"
#include <RF24/RF24.h>
#include <RF24Network/RF24Network.h>
 
RF24 radio(22, 0);
RF24Network network(radio);
RF24Mesh mesh(radio, network);
 
int main(int argc, char** argv)
{
    // Set the nodeID to 0 for the master node
    mesh.setNodeID(0);
 
    // Set the PA Level to MIN and disable LNA for testing & power supply related issues
    radio.begin();
    radio.setPALevel(RF24_PA_MIN, 0);
 
    // Connect to the mesh
    printf("start\n");
    if (!mesh.begin()) {
        // if mesh.begin() returns false for a master node, then radio.begin() returned false.
        printf("Radio hardware not responding.\n");
        return 0;
    }
    radio.printDetails();
 
    while (1)
    {
        // Call network.update as usual to keep the network updated
        mesh.update();
 
        // In addition, keep the 'DHCP service' running on the master node so addresses will
        // be assigned to the sensor nodes
        mesh.DHCP();
 
        // Check for incoming data from the sensors
        while (network.available())
        {
            // printf("rcv\n");
            RF24NetworkHeader header;
            network.peek(header);
 
            uint32_t dat = 0;
            switch (header.type)
            { // Display the incoming millis() values from the sensor nodes
                case 'M':
                    network.read(header, &dat, sizeof(dat));
                    printf("Rcv %u from 0%o\n", dat, header.from_node);
                    break;
                default:
                    network.read(header, 0, 0);
                    printf("Rcv bad type %d from 0%o\n", header.type, header.from_node);
                    break;
            }
        }
        delay(2);
    }
    return 0;
}