Communicates with the WiFi - be very careful when using as it is tempremental.
Dependencies: mbed
initiateWifi.cpp@6:99841ed0c8a8, 2017-05-25 (annotated)
- Committer:
- qdanilc
- Date:
- Thu May 25 12:12:09 2017 +0000
- Revision:
- 6:99841ed0c8a8
- Parent:
- 5:79618eee4d54
- Child:
- 7:bfb2b5142c29
sends commands in a manual sequence
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
qdanilc | 1:cd1fe330bc2a | 1 | #include "mbed.h" |
qdanilc | 1:cd1fe330bc2a | 2 | #include "RawSerial.h" |
qdanilc | 1:cd1fe330bc2a | 3 | |
qdanilc | 5:79618eee4d54 | 4 | //setup the other wifi pins |
qdanilc | 1:cd1fe330bc2a | 5 | DigitalOut rstPin (PTE29); |
qdanilc | 1:cd1fe330bc2a | 6 | DigitalOut chpdPin (PTE23); |
qdanilc | 1:cd1fe330bc2a | 7 | |
qdanilc | 1:cd1fe330bc2a | 8 | |
qdanilc | 1:cd1fe330bc2a | 9 | RawSerial esp (PTC4, PTC3, 115200); //setup a serial to the (board) Tx = PTC4 and Rx = PTC3 pins at baud rate 115200 |
qdanilc | 1:cd1fe330bc2a | 10 | |
qdanilc | 1:cd1fe330bc2a | 11 | Serial pc(USBTX, USBRX, 115200); |
qdanilc | 1:cd1fe330bc2a | 12 | |
qdanilc | 5:79618eee4d54 | 13 | DigitalOut redLED(LED1); // twp leds |
qdanilc | 1:cd1fe330bc2a | 14 | DigitalOut greenLED(LED2); // to allow visual check of bidirectional comms |
qdanilc | 1:cd1fe330bc2a | 15 | DigitalOut blueLED(LED3); //to prove it's working |
qdanilc | 1:cd1fe330bc2a | 16 | |
qdanilc | 1:cd1fe330bc2a | 17 | char input; //character to store inputs/outputs in communication |
qdanilc | 2:0b9ca0830cd3 | 18 | char* startCommands[10]= { |
qdanilc | 2:0b9ca0830cd3 | 19 | "AT", |
qdanilc | 2:0b9ca0830cd3 | 20 | "AT", |
qdanilc | 2:0b9ca0830cd3 | 21 | "AT", |
qdanilc | 2:0b9ca0830cd3 | 22 | "AT+RST", |
qdanilc | 2:0b9ca0830cd3 | 23 | "AT+CWMODE=1", |
qdanilc | 6:99841ed0c8a8 | 24 | //"AT+CWJAP=\"Hotspot\",\"password\"", skip signing in for debugging purposes |
qdanilc | 6:99841ed0c8a8 | 25 | "AT+CIPMUX=0", |
qdanilc | 6:99841ed0c8a8 | 26 | "AT+CIPSTART=\"TCP\",\"172.217.23.19\",80", // change to 172.217.23.19\", \"80\"", |
qdanilc | 6:99841ed0c8a8 | 27 | "AT+CIPSEND=0", |
qdanilc | 2:0b9ca0830cd3 | 28 | }; |
qdanilc | 1:cd1fe330bc2a | 29 | |
qdanilc | 1:cd1fe330bc2a | 30 | |
qdanilc | 2:0b9ca0830cd3 | 31 | int numberOfCommands; |
qdanilc | 5:79618eee4d54 | 32 | |
qdanilc | 5:79618eee4d54 | 33 | int k = 0; //counter for comm numb |
qdanilc | 2:0b9ca0830cd3 | 34 | |
qdanilc | 2:0b9ca0830cd3 | 35 | |
qdanilc | 5:79618eee4d54 | 36 | void start() { |
qdanilc | 2:0b9ca0830cd3 | 37 | pc.printf("Initialising start sequence\r\n"); |
qdanilc | 5:79618eee4d54 | 38 | |
qdanilc | 2:0b9ca0830cd3 | 39 | //numberOfCommands = sizeof(startCommands)/sizeof(startCommands[0]); |
qdanilc | 2:0b9ca0830cd3 | 40 | numberOfCommands = 10; |
qdanilc | 5:79618eee4d54 | 41 | |
qdanilc | 5:79618eee4d54 | 42 | for (int i = 0; i<numberOfCommands; i++) { //replace the 9 with sizeOf start commands |
qdanilc | 5:79618eee4d54 | 43 | |
qdanilc | 5:79618eee4d54 | 44 | pc.printf("\r\ncommand %d",i); //identify the command number |
qdanilc | 5:79618eee4d54 | 45 | pc.printf("\r\n"); |
qdanilc | 5:79618eee4d54 | 46 | |
qdanilc | 5:79618eee4d54 | 47 | esp.printf("%s\r\n",startCommands[i]); //send command |
qdanilc | 5:79618eee4d54 | 48 | esp.putc(10); //send the command by pressing enter |
qdanilc | 5:79618eee4d54 | 49 | |
qdanilc | 5:79618eee4d54 | 50 | |
qdanilc | 2:0b9ca0830cd3 | 51 | } |
qdanilc | 2:0b9ca0830cd3 | 52 | } |
qdanilc | 2:0b9ca0830cd3 | 53 | |
qdanilc | 5:79618eee4d54 | 54 | void reset() { //resets the module by turning rst off for 2 seconds then on again |
qdanilc | 1:cd1fe330bc2a | 55 | rstPin = 0; |
qdanilc | 1:cd1fe330bc2a | 56 | wait(2); |
qdanilc | 1:cd1fe330bc2a | 57 | rstPin = 1; |
qdanilc | 1:cd1fe330bc2a | 58 | pc.printf("Reset complete\r\n"); |
qdanilc | 5:79618eee4d54 | 59 | |
qdanilc | 1:cd1fe330bc2a | 60 | } |
qdanilc | 1:cd1fe330bc2a | 61 | void esp_recv() |
qdanilc | 1:cd1fe330bc2a | 62 | { |
qdanilc | 5:79618eee4d54 | 63 | redLED = !redLED; |
qdanilc | 1:cd1fe330bc2a | 64 | while(esp.readable()) { |
qdanilc | 5:79618eee4d54 | 65 | pc.putc(esp.getc()); |
qdanilc | 5:79618eee4d54 | 66 | //wait_us(1); |
qdanilc | 1:cd1fe330bc2a | 67 | } |
qdanilc | 1:cd1fe330bc2a | 68 | } |
qdanilc | 1:cd1fe330bc2a | 69 | void pc_recv() |
qdanilc | 1:cd1fe330bc2a | 70 | { |
qdanilc | 1:cd1fe330bc2a | 71 | char c; |
qdanilc | 1:cd1fe330bc2a | 72 | greenLED = !greenLED; |
qdanilc | 1:cd1fe330bc2a | 73 | while(pc.readable()) { |
qdanilc | 5:79618eee4d54 | 74 | c=pc.getc(); |
qdanilc | 5:79618eee4d54 | 75 | esp.putc(c); |
qdanilc | 5:79618eee4d54 | 76 | |
qdanilc | 5:79618eee4d54 | 77 | |
qdanilc | 5:79618eee4d54 | 78 | if(c==13) { |
qdanilc | 5:79618eee4d54 | 79 | pc.printf("\r\ncommand %d",k); //identify the command number |
qdanilc | 5:79618eee4d54 | 80 | pc.printf("\r\n"); |
qdanilc | 5:79618eee4d54 | 81 | |
qdanilc | 5:79618eee4d54 | 82 | esp.printf("%s\r\n",startCommands[k]); //send command |
qdanilc | 1:cd1fe330bc2a | 83 | pc.putc(10); //ie makes enter perform as expected |
qdanilc | 5:79618eee4d54 | 84 | |
qdanilc | 5:79618eee4d54 | 85 | if (k <10) { k++;} else {k=0;} //reset k if required |
qdanilc | 1:cd1fe330bc2a | 86 | } |
qdanilc | 1:cd1fe330bc2a | 87 | } |
qdanilc | 1:cd1fe330bc2a | 88 | } |
qdanilc | 1:cd1fe330bc2a | 89 | |
qdanilc | 5:79618eee4d54 | 90 | void initiateWifi() { |
qdanilc | 5:79618eee4d54 | 91 | |
qdanilc | 1:cd1fe330bc2a | 92 | //initialise the pins |
qdanilc | 1:cd1fe330bc2a | 93 | rstPin = 1; |
qdanilc | 1:cd1fe330bc2a | 94 | chpdPin = 1; |
qdanilc | 5:79618eee4d54 | 95 | |
qdanilc | 1:cd1fe330bc2a | 96 | reset(); //perform an initial reset |
qdanilc | 5:79618eee4d54 | 97 | |
qdanilc | 1:cd1fe330bc2a | 98 | blueLED = 1; //turn on test light |
qdanilc | 1:cd1fe330bc2a | 99 | |
qdanilc | 1:cd1fe330bc2a | 100 | pc.attach(&pc_recv, Serial::RxIrq); // attach the two interrupt services |
qdanilc | 1:cd1fe330bc2a | 101 | esp.attach(&esp_recv, Serial::RxIrq); |
qdanilc | 5:79618eee4d54 | 102 | |
qdanilc | 5:79618eee4d54 | 103 | //wait(10); |
qdanilc | 4:65f657998b7d | 104 | //start(); |
qdanilc | 1:cd1fe330bc2a | 105 | |
qdanilc | 1:cd1fe330bc2a | 106 | } |