Monish Kapadia / Mbed 2 deprecated LAB24_Node1

Node1_1

Dependencies:   mbed nRF24L01P

Node1.cpp@0:28f16e64ef5f, 2016-07-06 (annotated)

Committer:
monish
Date:
Wed Jul 06 06:27:30 2016 +0000
Revision:
0:28f16e64ef5f
Child:
1:c9a26d3b593b
Node1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
monish 0:28f16e64ef5f 1 /****PIPE1 Transmitter****/
monish 0:28f16e64ef5f 2
monish 0:28f16e64ef5f 3 #include "mbed.h"
monish 0:28f16e64ef5f 4 #include "nRF24L01P.h"
monish 0:28f16e64ef5f 5
monish 0:28f16e64ef5f 6 Serial pc(USBTX, USBRX); // tx, rx
monish 0:28f16e64ef5f 7
monish 0:28f16e64ef5f 8 nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTD0, PTD5, PTD4); // mosi, miso, sck, csn, ce, irq
monish 0:28f16e64ef5f 9 DigitalOut RedLED(LED1);
monish 0:28f16e64ef5f 10 AnalogIn ldr(A1);
monish 0:28f16e64ef5f 11
monish 0:28f16e64ef5f 12 int main()
monish 0:28f16e64ef5f 13 {
monish 0:28f16e64ef5f 14 char count[1];
monish 0:28f16e64ef5f 15 char TxDataCnt;
monish 0:28f16e64ef5f 16 char temp;
monish 0:28f16e64ef5f 17
monish 0:28f16e64ef5f 18 //set tx and rx address for pipe1: 5bytes long; different for every pipe
monish 0:28f16e64ef5f 19 long long TxAddress_PIPE1 = 0xE2E2E2E2E2;
monish 0:28f16e64ef5f 20 long long RxAddress_PIPE1 = 0xE2E2E2E2E2;
monish 0:28f16e64ef5f 21
monish 0:28f16e64ef5f 22 my_nrf24l01p.powerUp();
monish 0:28f16e64ef5f 23 my_nrf24l01p.setRfFrequency(2475);
monish 0:28f16e64ef5f 24
monish 0:28f16e64ef5f 25 //set tx address
monish 0:28f16e64ef5f 26 my_nrf24l01p.setTxAddress(TxAddress_PIPE1);
monish 0:28f16e64ef5f 27
monish 0:28f16e64ef5f 28 //set rxaddress with default width for specified pipe
monish 0:28f16e64ef5f 29 my_nrf24l01p.setRxAddress(RxAddress_PIPE1, DEFAULT_NRF24L01P_ADDRESS_WIDTH, NRF24L01P_PIPE_P1);
monish 0:28f16e64ef5f 30
monish 0:28f16e64ef5f 31 // Display the (default) setup of the nRF24L01+ chip
monish 0:28f16e64ef5f 32 pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", my_nrf24l01p.getRfFrequency() );
monish 0:28f16e64ef5f 33 pc.printf( "nRF24L01+ Output power : %d dBm\r\n", my_nrf24l01p.getRfOutputPower() );
monish 0:28f16e64ef5f 34 pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
monish 0:28f16e64ef5f 35 pc.printf( "nRF24L01+ TX Address - PIPE1 : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
monish 0:28f16e64ef5f 36
monish 0:28f16e64ef5f 37 pc.printf( "Wirelesss sensor network \r\n");
monish 0:28f16e64ef5f 38
monish 0:28f16e64ef5f 39 TxDataCnt = 1;
monish 0:28f16e64ef5f 40
monish 0:28f16e64ef5f 41 //set transfer size for each pipe
monish 0:28f16e64ef5f 42 my_nrf24l01p.setTransferSize(TxDataCnt, NRF24L01P_PIPE_P1);
monish 0:28f16e64ef5f 43 my_nrf24l01p.enable();
monish 0:28f16e64ef5f 44
monish 0:28f16e64ef5f 45 char ldr_val;
monish 0:28f16e64ef5f 46
monish 0:28f16e64ef5f 47 while (1) {
monish 0:28f16e64ef5f 48
monish 0:28f16e64ef5f 49 //adjusting data to 0-255 with char data type
monish 0:28f16e64ef5f 50 ldr_val = 255*(ldr.read());
monish 0:28f16e64ef5f 51
monish 0:28f16e64ef5f 52 count[0] = ldr_val;
monish 0:28f16e64ef5f 53
monish 0:28f16e64ef5f 54 //transmit on specified pipe
monish 0:28f16e64ef5f 55 temp = my_nrf24l01p.write( NRF24L01P_PIPE_P1,count, TxDataCnt );
monish 0:28f16e64ef5f 56
monish 0:28f16e64ef5f 57 pc.printf( "Sending %d bytes from PIPE1; LDR=%d\r\n",temp,count[0]);
monish 0:28f16e64ef5f 58
monish 0:28f16e64ef5f 59 // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
monish 0:28f16e64ef5f 60 RedLED = !RedLED;
monish 0:28f16e64ef5f 61
monish 0:28f16e64ef5f 62 wait(10);
monish 0:28f16e64ef5f 63 }
monish 0:28f16e64ef5f 64 }