ibrahim momoh / Mbed 2 deprecated Group10_master_real

this is 2/2 of the project this is the master board which has a wifi module ESP8266, an RF transceiver nrf module , and an LCD screen with an I2C back pack all communicating with the slave board

Dependencies:   Group10_master mbed nRF24L01P

main.cpp@0:f3eceaf51647, 2018-04-30 (annotated)

Committer:
imomoh
Date:
Mon Apr 30 06:19:48 2018 +0000
Revision:
0:f3eceaf51647
new commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
imomoh 0:f3eceaf51647 1 // Hello World! for the TextLCD
imomoh 0:f3eceaf51647 2
imomoh 0:f3eceaf51647 3 #include "mbed.h"
imomoh 0:f3eceaf51647 4 #include "TextLCD.h"
imomoh 0:f3eceaf51647 5 #include "nRF24L01P.h"
imomoh 0:f3eceaf51647 6
imomoh 0:f3eceaf51647 7
imomoh 0:f3eceaf51647 8
imomoh 0:f3eceaf51647 9
imomoh 0:f3eceaf51647 10 //nrf24l01p transiever setup
imomoh 0:f3eceaf51647 11 nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTD0, PTC4, PTC12);
imomoh 0:f3eceaf51647 12 //nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTC3,PTC2 , PTA2); //Slave board
imomoh 0:f3eceaf51647 13 DigitalOut myled1(LED_GREEN);
imomoh 0:f3eceaf51647 14 DigitalOut myled2(LED_RED);
imomoh 0:f3eceaf51647 15 #define TRANSFER_SIZE 4
imomoh 0:f3eceaf51647 16
imomoh 0:f3eceaf51647 17 // Host PC Communication channels
imomoh 0:f3eceaf51647 18 Serial pc(USBTX, USBRX); // tx, rx
imomoh 0:f3eceaf51647 19 //LCD SETUP
imomoh 0:f3eceaf51647 20 // I2C Communication
imomoh 0:f3eceaf51647 21 I2C i2c_lcd(PTE25,PTE24); // SDA, SCL
imomoh 0:f3eceaf51647 22 //I2C Portexpander PCF8574
imomoh 0:f3eceaf51647 23 TextLCD_I2C lcd(&i2c_lcd, 0x7e , TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, PCF8574 addr, LCD Type, Ctrl Type
imomoh 0:f3eceaf51647 24
imomoh 0:f3eceaf51647 25
imomoh 0:f3eceaf51647 26 //ESP8266 SETUP
imomoh 0:f3eceaf51647 27 Serial esp(D1, D0); // tx, rx
imomoh 0:f3eceaf51647 28 DigitalOut reset(D3);
imomoh 0:f3eceaf51647 29 Timer t;
imomoh 0:f3eceaf51647 30 int count,ended,timeout;
imomoh 0:f3eceaf51647 31 char buf[1024];
imomoh 0:f3eceaf51647 32 char snd[255];
imomoh 0:f3eceaf51647 33 char ssid[32] = "IU DeviceNet"; // enter WiFi router ssid inside the quotes
imomoh 0:f3eceaf51647 34 char pwd [32] = ""; // enter WiFi router password inside the quotes
imomoh 0:f3eceaf51647 35
imomoh 0:f3eceaf51647 36
imomoh 0:f3eceaf51647 37
imomoh 0:f3eceaf51647 38 void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate(), ESPconnection(),nrfmodule();
imomoh 0:f3eceaf51647 39
imomoh 0:f3eceaf51647 40
imomoh 0:f3eceaf51647 41
imomoh 0:f3eceaf51647 42 int main() {
imomoh 0:f3eceaf51647 43
imomoh 0:f3eceaf51647 44 char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
imomoh 0:f3eceaf51647 45 int txDataCnt = 0;
imomoh 0:f3eceaf51647 46 int rxDataCnt = 0;
imomoh 0:f3eceaf51647 47
imomoh 0:f3eceaf51647 48 my_nrf24l01p.powerUp();
imomoh 0:f3eceaf51647 49
imomoh 0:f3eceaf51647 50 lcd.cls();
imomoh 0:f3eceaf51647 51 lcd.locate(3,0);
imomoh 0:f3eceaf51647 52 lcd.printf("connecting");
imomoh 0:f3eceaf51647 53 lcd.locate(3,1);
imomoh 0:f3eceaf51647 54 lcd.printf("to wifi...");
imomoh 0:f3eceaf51647 55
imomoh 0:f3eceaf51647 56
imomoh 0:f3eceaf51647 57 // Show cursor as blinking character
imomoh 0:f3eceaf51647 58 lcd.setCursor(TextLCD::CurOff_BlkOn);
imomoh 0:f3eceaf51647 59 lcd.setBacklight(TextLCD::LightOn);
imomoh 0:f3eceaf51647 60
imomoh 0:f3eceaf51647 61
imomoh 0:f3eceaf51647 62 pc.baud(115200);
imomoh 0:f3eceaf51647 63 wait(0.5);
imomoh 0:f3eceaf51647 64 esp.baud(115200);// change this to the new ESP8266 baudrate if it is changed at any time.
imomoh 0:f3eceaf51647 65
imomoh 0:f3eceaf51647 66 nrfmodule();
imomoh 0:f3eceaf51647 67 ESPconnection();
imomoh 0:f3eceaf51647 68
imomoh 0:f3eceaf51647 69 lcd.cls();
imomoh 0:f3eceaf51647 70 lcd.locate(3,0);
imomoh 0:f3eceaf51647 71 lcd.printf("SYSTEM ARMED");
imomoh 0:f3eceaf51647 72 pc.printf("\nwaiting to be triggered\n");
imomoh 0:f3eceaf51647 73
imomoh 0:f3eceaf51647 74 while(1){
imomoh 0:f3eceaf51647 75
imomoh 0:f3eceaf51647 76 wait(1);
imomoh 0:f3eceaf51647 77 ////this is for the recieving part of the code part of the code
imomoh 0:f3eceaf51647 78 // If we've received anything in the nRF24L01+...
imomoh 0:f3eceaf51647 79
imomoh 0:f3eceaf51647 80 if ( my_nrf24l01p.readable() ) {
imomoh 0:f3eceaf51647 81 lcd.cls();
imomoh 0:f3eceaf51647 82 pc.printf("message recieved\n\r");
imomoh 0:f3eceaf51647 83 // ...read the data into the receive buffer
imomoh 0:f3eceaf51647 84 rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
imomoh 0:f3eceaf51647 85
imomoh 0:f3eceaf51647 86 // Display the receive buffer contents via the host serial link
imomoh 0:f3eceaf51647 87 for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {
imomoh 0:f3eceaf51647 88
imomoh 0:f3eceaf51647 89 pc.putc( rxData[i] );
imomoh 0:f3eceaf51647 90 pc.printf("data to recieve\r");
imomoh 0:f3eceaf51647 91 if(rxData[i]=='w'){
imomoh 0:f3eceaf51647 92
imomoh 0:f3eceaf51647 93 lcd.locate(3,0);
imomoh 0:f3eceaf51647 94 lcd.printf ("WARNING!!!");
imomoh 0:f3eceaf51647 95 lcd.locate(0,1);
imomoh 0:f3eceaf51647 96 lcd.printf ("ALARM TRIGGERED");
imomoh 0:f3eceaf51647 97 }else if(rxData){
imomoh 0:f3eceaf51647 98 lcd.locate(3,0);
imomoh 0:f3eceaf51647 99 lcd.printf ("SAFE");
imomoh 0:f3eceaf51647 100 lcd.locate(3,1);
imomoh 0:f3eceaf51647 101 lcd.printf ("SYSTEM ARMED");
imomoh 0:f3eceaf51647 102 }
imomoh 0:f3eceaf51647 103 }
imomoh 0:f3eceaf51647 104
imomoh 0:f3eceaf51647 105 // Toggle LED2 (to help debug nRF24L01+ -> Host communication)
imomoh 0:f3eceaf51647 106 myled2 = !myled2;
imomoh 0:f3eceaf51647 107 }
imomoh 0:f3eceaf51647 108
imomoh 0:f3eceaf51647 109
imomoh 0:f3eceaf51647 110 }
imomoh 0:f3eceaf51647 111
imomoh 0:f3eceaf51647 112
imomoh 0:f3eceaf51647 113
imomoh 0:f3eceaf51647 114 }
imomoh 0:f3eceaf51647 115
imomoh 0:f3eceaf51647 116 //FUNCTIONS
imomoh 0:f3eceaf51647 117
imomoh 0:f3eceaf51647 118 void ESPconnection()
imomoh 0:f3eceaf51647 119 {
imomoh 0:f3eceaf51647 120 pc.printf("\n---------- Get IP and MAC ----------\r\n");
imomoh 0:f3eceaf51647 121 strcpy(snd, "AT+CIFSR\r\n");
imomoh 0:f3eceaf51647 122 SendCMD();
imomoh 0:f3eceaf51647 123 timeout=10;
imomoh 0:f3eceaf51647 124 getreply();
imomoh 0:f3eceaf51647 125 pc.printf(buf);
imomoh 0:f3eceaf51647 126 wait(2);
imomoh 0:f3eceaf51647 127
imomoh 0:f3eceaf51647 128
imomoh 0:f3eceaf51647 129 pc.printf("\n---------- Get Connection Status ----------\r\n");
imomoh 0:f3eceaf51647 130 strcpy(snd, "AT+CIPSTATUS\r\n");
imomoh 0:f3eceaf51647 131 SendCMD();
imomoh 0:f3eceaf51647 132 timeout=5;
imomoh 0:f3eceaf51647 133 getreply();
imomoh 0:f3eceaf51647 134 pc.printf(buf);
imomoh 0:f3eceaf51647 135 lcd.cls();
imomoh 0:f3eceaf51647 136 lcd.locate(3,0);
imomoh 0:f3eceaf51647 137 lcd.printf("connected");
imomoh 0:f3eceaf51647 138 wait(1);
imomoh 0:f3eceaf51647 139
imomoh 0:f3eceaf51647 140
imomoh 0:f3eceaf51647 141 }
imomoh 0:f3eceaf51647 142
imomoh 0:f3eceaf51647 143
imomoh 0:f3eceaf51647 144 void ESPsetbaudrate()
imomoh 0:f3eceaf51647 145 {
imomoh 0:f3eceaf51647 146 strcpy(snd, "AT+CIOBAUD=115200\r\n"); // change the numeric value to the required baudrate
imomoh 0:f3eceaf51647 147 SendCMD();
imomoh 0:f3eceaf51647 148 }
imomoh 0:f3eceaf51647 149
imomoh 0:f3eceaf51647 150
imomoh 0:f3eceaf51647 151 void SendCMD()
imomoh 0:f3eceaf51647 152 {
imomoh 0:f3eceaf51647 153 esp.printf("%s", snd);
imomoh 0:f3eceaf51647 154 }
imomoh 0:f3eceaf51647 155
imomoh 0:f3eceaf51647 156 void getreply()
imomoh 0:f3eceaf51647 157 {
imomoh 0:f3eceaf51647 158 memset(buf, '\0', sizeof(buf));
imomoh 0:f3eceaf51647 159 t.start();
imomoh 0:f3eceaf51647 160 ended=0;
imomoh 0:f3eceaf51647 161 count=0;
imomoh 0:f3eceaf51647 162 while(!ended) {
imomoh 0:f3eceaf51647 163 if(esp.readable()) {
imomoh 0:f3eceaf51647 164 buf[count] = esp.getc();
imomoh 0:f3eceaf51647 165 count++;
imomoh 0:f3eceaf51647 166 }
imomoh 0:f3eceaf51647 167 if(t.read() > timeout) {
imomoh 0:f3eceaf51647 168 ended = 1;
imomoh 0:f3eceaf51647 169 t.stop();
imomoh 0:f3eceaf51647 170 t.reset();
imomoh 0:f3eceaf51647 171 }
imomoh 0:f3eceaf51647 172 }
imomoh 0:f3eceaf51647 173 }
imomoh 0:f3eceaf51647 174 void nrfmodule(){
imomoh 0:f3eceaf51647 175
imomoh 0:f3eceaf51647 176 // Display the (default) setup of the nRF24L01+ chip
imomoh 0:f3eceaf51647 177 pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", my_nrf24l01p.getRfFrequency() );
imomoh 0:f3eceaf51647 178 pc.printf( "nRF24L01+ Output power : %d dBm\r\n", my_nrf24l01p.getRfOutputPower() );
imomoh 0:f3eceaf51647 179 pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
imomoh 0:f3eceaf51647 180 pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
imomoh 0:f3eceaf51647 181 pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
imomoh 0:f3eceaf51647 182
imomoh 0:f3eceaf51647 183 pc.printf( "nRF24L01 module has been set up" );
imomoh 0:f3eceaf51647 184
imomoh 0:f3eceaf51647 185
imomoh 0:f3eceaf51647 186 my_nrf24l01p.setReceiveMode();
imomoh 0:f3eceaf51647 187 my_nrf24l01p.enable();
imomoh 0:f3eceaf51647 188
imomoh 0:f3eceaf51647 189
imomoh 0:f3eceaf51647 190
imomoh 0:f3eceaf51647 191 }