Transmitter of Wireless sensor network using NRF24L01P.

Dependencies:   mbed nRF24L01P

main.cpp

Committer:
eduvanceIoT
Date:
2016-09-10
Revision:
1:d5d2ddb11721
Parent:
0:3b68b7f40f0a

File content as of revision 1:d5d2ddb11721:

 #include "mbed.h"
#include "nRF24L01P.h"

Serial pc(USBTX, USBRX); 

//NRF connections to mbed
nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTD0, PTD5, PTD4);    // mosi, miso, sck, csn, ce, irq
DigitalOut RedLED(LED1);

AnalogIn pot(PTB0);
AnalogIn ldr(PTB1);

int main()
{
    
    float potval;
    char potc;
    float ldrval;
    char ldrc;
    
    char count[2];
    char TxDataCnt;
    char temp;
    int k = 255; 
    //waking up NRF
    my_nrf24l01p.powerUp();
    
    //setting frequency of NRF
    my_nrf24l01p.setRfFrequency(2410); 

    //display default settings of NRF
    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
    pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );

    pc.printf( "Simple Transmitter \r\n");
    
    TxDataCnt = 2;
    
    //set packet size of NRF
    my_nrf24l01p.setTransferSize(TxDataCnt);
    
    //enabling radio of NRF
    my_nrf24l01p.enable();
    
    //sending test count value
    //count[0] = 0x01;
    //count[1] = 0x01;

    while (1) {
        
        potval = pot.read();
        potc = potval*k;
        ldrval = ldr.read();
        ldrc = ldrval*k;
        
        count[0] = potc;
        count[1] = ldrc;

        //Send the Transmit buffer via the nRF24L01+
        temp = my_nrf24l01p.write( NRF24L01P_PIPE_P0,count, TxDataCnt );
        
        //print how many bytes sent
        pc.printf( "Sending %d -pot - %d ldr - %d\r\n",temp,count[0],count[1]);

        //toggle debug led
        RedLED = !RedLED;
            
        //update count
        //count[0]++;
        
        wait(0.5);
    }
}