Monish Kapadia
/
LAB24_Node1
Node1_1
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?
User | Revision | Line number | New 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 | } |