ibrahim momoh / Mbed 2 deprecated Group10_slave

this is 1/2 of the whole project, this is the part of the slave board that has all the sensors on it, controls the rasberri pi through GPIO, gets sensor data, and sends alert messages through the nrf RF transceiver module to the master board

Dependencies:   HCSR04 mbed nRF24L01P

Fork of nRF24L01P_Hello_World by Owen Edwards

main.cpp@2:fb75a6c7a0de, 2018-04-30 (annotated)

Committer:
imomoh
Date:
Mon Apr 30 06:12:01 2018 +0000
Revision:
2:fb75a6c7a0de
Parent:
1:5be2682710c6 
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
imomoh 2:fb75a6c7a0de 1 /*******************************************************************************
imomoh 2:fb75a6c7a0de 2 ECE 595 2018 Spring
imomoh 2:fb75a6c7a0de 3 Project 2
imomoh 2:fb75a6c7a0de 4 Group 10
imomoh 2:fb75a6c7a0de 5 last Update 4/22/2018
imomoh 2:fb75a6c7a0de 6 memo:
imomoh 2:fb75a6c7a0de 7 *******************************************************************************/
imomoh 2:fb75a6c7a0de 8
Owen 0:a51a6e7da590 9 #include "mbed.h"
Owen 0:a51a6e7da590 10 #include "nRF24L01P.h"
imomoh 2:fb75a6c7a0de 11 #include "HCSR04.h"
imomoh 2:fb75a6c7a0de 12
Owen 0:a51a6e7da590 13 Serial pc(USBTX, USBRX); // tx, rx
Owen 0:a51a6e7da590 14
imomoh 2:fb75a6c7a0de 15 //nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTD0, PTC4, PTC12); // mosi, miso, sck, csn, ce, irq
imomoh 2:fb75a6c7a0de 16 nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTC3, PTC4, PTD0);
imomoh 2:fb75a6c7a0de 17 DigitalOut myled1(LED_GREEN);
imomoh 2:fb75a6c7a0de 18 DigitalOut myled2(LED_RED);
imomoh 2:fb75a6c7a0de 19
imomoh 2:fb75a6c7a0de 20
imomoh 2:fb75a6c7a0de 21 DigitalIn soundDete(D8);
imomoh 2:fb75a6c7a0de 22 DigitalIn touch(D4);
imomoh 2:fb75a6c7a0de 23 DigitalOut buzzer(D3);
imomoh 2:fb75a6c7a0de 24 DigitalOut Picamera(D2);
Owen 0:a51a6e7da590 25
imomoh 2:fb75a6c7a0de 26 Timer timer;
imomoh 2:fb75a6c7a0de 27 HCSR04 rangeFinder(D5, D6);
Owen 0:a51a6e7da590 28
imomoh 2:fb75a6c7a0de 29 float range;
imomoh 2:fb75a6c7a0de 30 float tooClose=10;
imomoh 2:fb75a6c7a0de 31 int warning = 0;
imomoh 2:fb75a6c7a0de 32 int newevent =0;
imomoh 2:fb75a6c7a0de 33
imomoh 2:fb75a6c7a0de 34
imomoh 2:fb75a6c7a0de 35
imomoh 2:fb75a6c7a0de 36
imomoh 2:fb75a6c7a0de 37 void blink(),takePic(),detectedsound(),checkrange(),shutter();
Owen 0:a51a6e7da590 38 int main() {
imomoh 2:fb75a6c7a0de 39
Owen 0:a51a6e7da590 40 // The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
Owen 0:a51a6e7da590 41 // "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019)
Owen 0:a51a6e7da590 42 // only handles 4 byte transfers in the ATMega code.
Owen 0:a51a6e7da590 43 #define TRANSFER_SIZE 4
imomoh 2:fb75a6c7a0de 44
Owen 0:a51a6e7da590 45 char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
Owen 0:a51a6e7da590 46 int txDataCnt = 0;
Owen 0:a51a6e7da590 47 int rxDataCnt = 0;
imomoh 2:fb75a6c7a0de 48
Owen 0:a51a6e7da590 49 my_nrf24l01p.powerUp();
imomoh 2:fb75a6c7a0de 50
Owen 0:a51a6e7da590 51 // Display the (default) setup of the nRF24L01+ chip
Owen 0:a51a6e7da590 52 pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", my_nrf24l01p.getRfFrequency() );
Owen 0:a51a6e7da590 53 pc.printf( "nRF24L01+ Output power : %d dBm\r\n", my_nrf24l01p.getRfOutputPower() );
Owen 0:a51a6e7da590 54 pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
Owen 0:a51a6e7da590 55 pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
Owen 0:a51a6e7da590 56 pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
imomoh 2:fb75a6c7a0de 57
Owen 0:a51a6e7da590 58 pc.printf( "Type keys to test transfers:\r\n (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
imomoh 2:fb75a6c7a0de 59
Owen 0:a51a6e7da590 60 my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
imomoh 2:fb75a6c7a0de 61
imomoh 2:fb75a6c7a0de 62 my_nrf24l01p.setTransmitMode();
Owen 0:a51a6e7da590 63 my_nrf24l01p.enable();
imomoh 2:fb75a6c7a0de 64
Owen 0:a51a6e7da590 65 while (1) {
imomoh 2:fb75a6c7a0de 66
imomoh 2:fb75a6c7a0de 67 pc.printf("init\n\r");
imomoh 2:fb75a6c7a0de 68 Picamera = 1;
imomoh 2:fb75a6c7a0de 69 detectedsound();
imomoh 2:fb75a6c7a0de 70 checkrange();
imomoh 2:fb75a6c7a0de 71 if ( newevent != 1){
imomoh 2:fb75a6c7a0de 72 shutter();
imomoh 2:fb75a6c7a0de 73 }
imomoh 2:fb75a6c7a0de 74 if ( warning == 1 ){
imomoh 2:fb75a6c7a0de 75 blink();
imomoh 2:fb75a6c7a0de 76 if ( newevent == 1){
imomoh 2:fb75a6c7a0de 77 takePic();
imomoh 2:fb75a6c7a0de 78
imomoh 2:fb75a6c7a0de 79 newevent =0;
imomoh 2:fb75a6c7a0de 80 }
imomoh 2:fb75a6c7a0de 81 }
imomoh 2:fb75a6c7a0de 82
imomoh 2:fb75a6c7a0de 83
imomoh 2:fb75a6c7a0de 84
imomoh 2:fb75a6c7a0de 85
Owen 0:a51a6e7da590 86 // If we've received anything over the host serial link...
imomoh 2:fb75a6c7a0de 87 if ( warning == 1 ) {
imomoh 2:fb75a6c7a0de 88
Owen 0:a51a6e7da590 89 // ...add it to the transmit buffer
imomoh 2:fb75a6c7a0de 90 txData[txDataCnt++] = 'w';
imomoh 2:fb75a6c7a0de 91 txData[txDataCnt++] = 'w';
imomoh 2:fb75a6c7a0de 92 txData[txDataCnt++] = 'w';
imomoh 2:fb75a6c7a0de 93 txData[txDataCnt++] = 'w';
Owen 0:a51a6e7da590 94 // If the transmit buffer is full
Owen 0:a51a6e7da590 95 if ( txDataCnt >= sizeof( txData ) ) {
imomoh 2:fb75a6c7a0de 96
Owen 0:a51a6e7da590 97 // Send the transmitbuffer via the nRF24L01+
imomoh 2:fb75a6c7a0de 98 pc.printf("message sent");
Owen 0:a51a6e7da590 99 my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
imomoh 2:fb75a6c7a0de 100
Owen 0:a51a6e7da590 101 txDataCnt = 0;
Owen 0:a51a6e7da590 102 }
imomoh 2:fb75a6c7a0de 103
Owen 0:a51a6e7da590 104 // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
Owen 0:a51a6e7da590 105 myled1 = !myled1;
imomoh 2:fb75a6c7a0de 106 }else{
imomoh 2:fb75a6c7a0de 107 // ...send safe messages
imomoh 2:fb75a6c7a0de 108 txData[txDataCnt++] = 's';
imomoh 2:fb75a6c7a0de 109 txData[txDataCnt++] = 's';
imomoh 2:fb75a6c7a0de 110 txData[txDataCnt++] = 's';
imomoh 2:fb75a6c7a0de 111 txData[txDataCnt++] = 's';
imomoh 2:fb75a6c7a0de 112 // If the transmit buffer is full
imomoh 2:fb75a6c7a0de 113 if ( txDataCnt >= sizeof( txData ) ) {
imomoh 2:fb75a6c7a0de 114
imomoh 2:fb75a6c7a0de 115 // Send the transmitbuffer via the nRF24L01+
imomoh 2:fb75a6c7a0de 116 pc.printf("message sent");
imomoh 2:fb75a6c7a0de 117 my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
imomoh 2:fb75a6c7a0de 118
imomoh 2:fb75a6c7a0de 119 txDataCnt = 0;
Owen 0:a51a6e7da590 120 }
Owen 0:a51a6e7da590 121 }
Owen 0:a51a6e7da590 122 }
Owen 0:a51a6e7da590 123 }
imomoh 2:fb75a6c7a0de 124
imomoh 2:fb75a6c7a0de 125
imomoh 2:fb75a6c7a0de 126
imomoh 2:fb75a6c7a0de 127
imomoh 2:fb75a6c7a0de 128 void blink(){
imomoh 2:fb75a6c7a0de 129 pc.printf("blink\n\r");
imomoh 2:fb75a6c7a0de 130 buzzer = 1;
imomoh 2:fb75a6c7a0de 131 wait(.3);
imomoh 2:fb75a6c7a0de 132 buzzer = 0;
imomoh 2:fb75a6c7a0de 133 }
imomoh 2:fb75a6c7a0de 134
imomoh 2:fb75a6c7a0de 135 void takePic(){
imomoh 2:fb75a6c7a0de 136 pc.printf("take photo\n\r");
imomoh 2:fb75a6c7a0de 137 Picamera = 0; //0 to take pic
imomoh 2:fb75a6c7a0de 138 wait(.5);
imomoh 2:fb75a6c7a0de 139 Picamera = 1; //1 not take pic
imomoh 2:fb75a6c7a0de 140 pc.printf("finish take photo\n\r");
imomoh 2:fb75a6c7a0de 141 }
imomoh 2:fb75a6c7a0de 142
imomoh 2:fb75a6c7a0de 143 void detectedsound(){
imomoh 2:fb75a6c7a0de 144 pc.printf("detecte sound\n\r");
imomoh 2:fb75a6c7a0de 145 if( soundDete == 1){
imomoh 2:fb75a6c7a0de 146 if(warning == 0){
imomoh 2:fb75a6c7a0de 147 pc.printf("sound too high\n\r");
imomoh 2:fb75a6c7a0de 148 warning = 1;
imomoh 2:fb75a6c7a0de 149 newevent = 1;
imomoh 2:fb75a6c7a0de 150 }
imomoh 2:fb75a6c7a0de 151 }
imomoh 2:fb75a6c7a0de 152 }
imomoh 2:fb75a6c7a0de 153
imomoh 2:fb75a6c7a0de 154 void checkrange(){
imomoh 2:fb75a6c7a0de 155 pc.printf("start check range\n\r");
imomoh 2:fb75a6c7a0de 156 timer.reset();
imomoh 2:fb75a6c7a0de 157 timer.start();
imomoh 2:fb75a6c7a0de 158 rangeFinder.startMeasurement();
imomoh 2:fb75a6c7a0de 159 while(!rangeFinder.isNewDataReady()){
imomoh 2:fb75a6c7a0de 160 }
imomoh 2:fb75a6c7a0de 161 range = rangeFinder.getDistance_cm();
imomoh 2:fb75a6c7a0de 162 pc.printf("range = %5.1f cm\n\r", range);
imomoh 2:fb75a6c7a0de 163 if ( range < tooClose ){
imomoh 2:fb75a6c7a0de 164 pc.printf("too close\n\r");
imomoh 2:fb75a6c7a0de 165 if(warning == 0){
imomoh 2:fb75a6c7a0de 166 warning = 1;
imomoh 2:fb75a6c7a0de 167 newevent = 1;
imomoh 2:fb75a6c7a0de 168 }
imomoh 2:fb75a6c7a0de 169 }
imomoh 2:fb75a6c7a0de 170 else{
imomoh 2:fb75a6c7a0de 171 if (soundDete == 0 & range>=tooClose){
imomoh 2:fb75a6c7a0de 172 pc.printf("not too close, clear warning\n\r");
imomoh 2:fb75a6c7a0de 173 warning = 0;
imomoh 2:fb75a6c7a0de 174 }
imomoh 2:fb75a6c7a0de 175 }
imomoh 2:fb75a6c7a0de 176 timer.stop();
imomoh 2:fb75a6c7a0de 177 wait_ms(500-timer.read_ms());
imomoh 2:fb75a6c7a0de 178 }
imomoh 2:fb75a6c7a0de 179
imomoh 2:fb75a6c7a0de 180 void shutter()
imomoh 2:fb75a6c7a0de 181 {
imomoh 2:fb75a6c7a0de 182 if ( touch == 1){
imomoh 2:fb75a6c7a0de 183 pc.printf("shutter\n\r");
imomoh 2:fb75a6c7a0de 184 takePic();
imomoh 2:fb75a6c7a0de 185 }
imomoh 2:fb75a6c7a0de 186 }