RF24Mesh_Example_Master.ino

Arduino Example Sketch

Note

This sketch only functions on -Arduino Due-

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 "RF24Network.h"
#include "RF24.h"
#include "RF24Mesh.h"
#include <SPI.h>
 
/***** Configure the chosen CE,CS pins *****/
RF24 radio(7, 8);
RF24Network network(radio);
RF24Mesh mesh(radio, network);
 
uint32_t displayTimer = 0;
 
void setup() {
  Serial.begin(115200);
  while (!Serial) {
    // some boards need this because of native USB capability
  }
 
  // Set the nodeID to 0 for the master node
  mesh.setNodeID(0);
  Serial.println(mesh.getNodeID());
 
  // 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
  if (!mesh.begin()) {
    // if mesh.begin() returns false for a master node, then radio.begin() returned false.
    Serial.println(F("Radio hardware not responding."));
    while (1) {
      // hold in an infinite loop
    }
  }
}
 
 
void loop() {
 
  // Call mesh.update 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
  if (network.available()) {
    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));
        Serial.println(dat);
        break;
      default:
        network.read(header, 0, 0);
        Serial.println(header.type);
        break;
    }
  }
 
  if (millis() - displayTimer > 5000) {
    displayTimer = millis();
    Serial.println(" ");
    Serial.println(F("********Assigned Addresses********"));
    for (int i = 0; i < mesh.addrListTop; i++) {
      Serial.print("NodeID: ");
      Serial.print(mesh.addrList[i].nodeID);
      Serial.print(" RF24Network Address: 0");
      Serial.println(mesh.addrList[i].address, OCT);
    }
    Serial.println(F("**********************************"));
  }
}