Communicates with the WiFi - be very careful when using as it is tempremental.
Dependencies: mbed
Diff: initiateWifi.cpp
- Revision:
- 5:79618eee4d54
- Parent:
- 4:65f657998b7d
- Child:
- 6:99841ed0c8a8
diff -r 65f657998b7d -r 79618eee4d54 initiateWifi.cpp --- a/initiateWifi.cpp Thu May 25 11:27:17 2017 +0000 +++ b/initiateWifi.cpp Thu May 25 11:41:21 2017 +0000 @@ -1,7 +1,7 @@ #include "mbed.h" #include "RawSerial.h" -//setup the other wifi pins + //setup the other wifi pins DigitalOut rstPin (PTE29); DigitalOut chpdPin (PTE23); @@ -10,12 +10,9 @@ Serial pc(USBTX, USBRX, 115200); -DigitalOut redLED(LED1); // twp leds +DigitalOut redLED(LED1); // twp leds DigitalOut greenLED(LED2); // to allow visual check of bidirectional comms DigitalOut blueLED(LED3); //to prove it's working -char c; -char * buffer = (char *)malloc(128); //setup a buffer 128 characters long -char * nextBuff; // a pointer to the next character being added to the buffer char input; //character to store inputs/outputs in communication char* startCommands[10]= { @@ -24,68 +21,50 @@ "AT", "AT+RST", "AT+CWMODE=1", - "AT+CWJAP=\"Hotspot\",\"password\"", //name and password of wifi + "AT+CWJAP=\"Hotspot\",\"password\"", "AT+CIFSR", "AT+CIPMUX=1", - "AT+CIPSTART=4","TCP","172.217.23.19","5005", //connect to soroush's server - "AT+CIPSEND=4,1" - "a" // send a single char + "AT+CIPSERVER=1,8080", + "AT+CIPSEND=0," }; int numberOfCommands; -int commandsExecuted; -int gotLine = 0; // boolean for whether we have a line + +int k = 0; //counter for comm numb -void start() -{ +void start() { pc.printf("Initialising start sequence\r\n"); - - + //numberOfCommands = sizeof(startCommands)/sizeof(startCommands[0]); numberOfCommands = 10; - - commandsExecuted = 0; - esp.printf("%s\r\n",startCommands[commandsExecuted]); - while (commandsExecuted < numberOfCommands) { //loop until we have executed all the commands - if(gotLine) { // if esp signals that it's ready to receive a command, send the next command - pc.printf("\r\ncommand %d",commandsExecuted); //identify the command number - pc.printf("\r\n"); - - esp.printf("%s\r\n",startCommands[commandsExecuted]); //send command - commandsExecuted ++; //increment the counter - gotLine = 0; - } + + for (int i = 0; i<numberOfCommands; i++) { //replace the 9 with sizeOf start commands + + pc.printf("\r\ncommand %d",i); //identify the command number + pc.printf("\r\n"); + + esp.printf("%s\r\n",startCommands[i]); //send command + esp.putc(10); //send the command by pressing enter + + } } -void reset() //resets the module by turning rst off for 2 seconds then on again -{ +void reset() { //resets the module by turning rst off for 2 seconds then on again rstPin = 0; wait(2); rstPin = 1; pc.printf("Reset complete\r\n"); - + } void esp_recv() { - char d; - nextBuff = buffer; //make nextbuff point to beginning fo buffe - + redLED = !redLED; while(esp.readable()) { - d = esp.getc(); // get character sent by the esp - - pc.putc(d); // get character sent by the esp - * nextBuff = d; //store in nextBuff - nextBuff ++; - if (d== '\n' ) { // if our first two characters are return and newline, then we have reached the end of the line - pc.putc('!'); - nextBuff = buffer; // what does this do????????????/ - gotLine = 1; - } - - + pc.putc(esp.getc()); + //wait_us(1); } } void pc_recv() @@ -93,40 +72,36 @@ char c; greenLED = !greenLED; while(pc.readable()) { - c=pc.getc(); // get typed input - - - if(c==13) { //send enter - - esp.putc(10); //send the command by pressing enter + c=pc.getc(); + esp.putc(c); + + + if(c==13) { + pc.printf("\r\ncommand %d",k); //identify the command number + pc.printf("\r\n"); + + esp.printf("%s\r\n",startCommands[k]); //send command pc.putc(10); //ie makes enter perform as expected - } - - else if(c=='y') { // send the startup sequence - start(); - } else { - esp.putc(c); + + if (k <10) { k++;} else {k=0;} //reset k if required } } } -void initiateWifi() -{ - +void initiateWifi() { + //initialise the pins rstPin = 1; chpdPin = 1; - + reset(); //perform an initial reset - + blueLED = 1; //turn on test light pc.attach(&pc_recv, Serial::RxIrq); // attach the two interrupt services esp.attach(&esp_recv, Serial::RxIrq); - for (char i=5; i>0; i--) { - pc.printf("%d\r\n", i); - wait(1); - } + + //wait(10); //start(); } \ No newline at end of file