Sensor CDT / nRFGateway

Gateway stuff

Dependencies:   mbed nRF24L01P

Fork of nRF24L01P_Hello_World_Gateway by TJ Projects

main.cpp@3:116f9c1d405a, 2015-07-21 (annotated)

Committer:
jaehughes
Date:
Tue Jul 21 15:23:43 2015 +0000
Revision:
3:116f9c1d405a
Parent:
2:2a982b2cda5e 
Gateway stuff.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Owen 0:a51a6e7da590 1 #include "mbed.h"
Owen 0:a51a6e7da590 2 #include "nRF24L01P.h"
Owen 0:a51a6e7da590 3
Owen 0:a51a6e7da590 4 Serial pc(USBTX, USBRX); // tx, rx
Owen 0:a51a6e7da590 5
jaehughes 3:116f9c1d405a 6 //nRF24L01P my_nrf24l01p(p11, p12, p13, p14, p15, p10); // mosi, miso, sck, csn, ce, irq
jaehughes 3:116f9c1d405a 7 //nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTE1, PTE0, PTD0);
jaehughes 3:116f9c1d405a 8 nRF24L01P my_nrf24l01p(p5, p6, p7, p9, p10, p8); // mosi, miso, sck, csn, ce, irq
Owen 0:a51a6e7da590 9
Owen 0:a51a6e7da590 10 DigitalOut myled1(LED1);
Owen 0:a51a6e7da590 11 DigitalOut myled2(LED2);
Owen 0:a51a6e7da590 12
Owen 0:a51a6e7da590 13 int main() {
Owen 0:a51a6e7da590 14
Owen 0:a51a6e7da590 15 // The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
Owen 0:a51a6e7da590 16 // "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019)
Owen 0:a51a6e7da590 17 // only handles 4 byte transfers in the ATMega code.
jaehughes 3:116f9c1d405a 18 #define TRANSFER_SIZE 24
Owen 0:a51a6e7da590 19
Owen 0:a51a6e7da590 20 char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
Owen 0:a51a6e7da590 21 int txDataCnt = 0;
Owen 0:a51a6e7da590 22 int rxDataCnt = 0;
Owen 0:a51a6e7da590 23
Owen 0:a51a6e7da590 24 my_nrf24l01p.powerUp();
Owen 0:a51a6e7da590 25
Owen 0:a51a6e7da590 26 // Display the (default) setup of the nRF24L01+ chip
jaehughes 3:116f9c1d405a 27
jaehughes 3:116f9c1d405a 28 /* pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", my_nrf24l01p.getRfFrequency() );
Owen 0:a51a6e7da590 29 pc.printf( "nRF24L01+ Output power : %d dBm\r\n", my_nrf24l01p.getRfOutputPower() );
Owen 0:a51a6e7da590 30 pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
Owen 0:a51a6e7da590 31 pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
Owen 0:a51a6e7da590 32 pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
Owen 0:a51a6e7da590 33
Owen 0:a51a6e7da590 34 pc.printf( "Type keys to test transfers:\r\n (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
jaehughes 3:116f9c1d405a 35 */
Owen 0:a51a6e7da590 36 my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
Owen 0:a51a6e7da590 37
Owen 0:a51a6e7da590 38 my_nrf24l01p.setReceiveMode();
Owen 0:a51a6e7da590 39 my_nrf24l01p.enable();
Owen 0:a51a6e7da590 40
Owen 0:a51a6e7da590 41 while (1) {
Owen 0:a51a6e7da590 42
Owen 0:a51a6e7da590 43 // If we've received anything over the host serial link...
Owen 0:a51a6e7da590 44 if ( pc.readable() ) {
Owen 0:a51a6e7da590 45
Owen 0:a51a6e7da590 46 // ...add it to the transmit buffer
Owen 0:a51a6e7da590 47 txData[txDataCnt++] = pc.getc();
Owen 0:a51a6e7da590 48
Owen 0:a51a6e7da590 49 // If the transmit buffer is full
Owen 0:a51a6e7da590 50 if ( txDataCnt >= sizeof( txData ) ) {
Owen 0:a51a6e7da590 51
Owen 0:a51a6e7da590 52 // Send the transmitbuffer via the nRF24L01+
Owen 0:a51a6e7da590 53 my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
Owen 0:a51a6e7da590 54
Owen 0:a51a6e7da590 55 txDataCnt = 0;
Owen 0:a51a6e7da590 56 }
Owen 0:a51a6e7da590 57
Owen 0:a51a6e7da590 58 // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
Owen 0:a51a6e7da590 59 myled1 = !myled1;
Owen 0:a51a6e7da590 60 }
Owen 0:a51a6e7da590 61
Owen 0:a51a6e7da590 62 // If we've received anything in the nRF24L01+...
Owen 0:a51a6e7da590 63 if ( my_nrf24l01p.readable() ) {
Owen 0:a51a6e7da590 64
Owen 0:a51a6e7da590 65 // ...read the data into the receive buffer
Owen 0:a51a6e7da590 66 rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
Owen 0:a51a6e7da590 67
Owen 0:a51a6e7da590 68 // Display the receive buffer contents via the host serial link
Owen 0:a51a6e7da590 69 for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {
Owen 0:a51a6e7da590 70
Owen 0:a51a6e7da590 71 pc.putc( rxData[i] );
Owen 0:a51a6e7da590 72 }
Owen 0:a51a6e7da590 73
Owen 0:a51a6e7da590 74 // Toggle LED2 (to help debug nRF24L01+ -> Host communication)
Owen 0:a51a6e7da590 75 myled2 = !myled2;
Owen 0:a51a6e7da590 76 }
Owen 0:a51a6e7da590 77 }
Owen 0:a51a6e7da590 78 }