Diff: main.cpp

Revision:

0:e68e51f935d1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 20 17:35:45 2015 +0000
@@ -0,0 +1,414 @@
+#include "mbed.h"
+
+#define USE_CAP 1
+#define USE_WIFI_BASIC 0
+#define USE_WIFI_ADVANCED 1
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+Serial pc(USBTX, USBRX); // tx, rx
+
+#if USE_CAP
+#include <mpr121.h>
+// Create the interrupt receiver object on pin 26
+InterruptIn interrupt(p26);
+// Setup the i2c bus on pins 9 and 10
+I2C i2c(p9, p10);
+// Setup the Mpr121:
+// constructor(i2c object, i2c address of the mpr121)
+Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
+
+void fallInterrupt();
+#endif
+
+// WiFi stuff
+#if USE_WIFI_BASIC
+Serial esp(p28, p27); // tx, rx
+DigitalOut reset(p29);
+Timer t;
+
+char ssid[32] = "GTother";     // enter WiFi router ssid inside the quotes
+char pwd [32] = "GeorgeP@1927"; // enter WiFi router password inside the quotes
+int  count,ended,timeout;
+char buf[1024];
+char snd[255];
+
+void SendCMD(), getreply(), ESPconfig(), ESPsetbaudrate();
+
+void basicWifiSetup();
+void basicWifiLoop();
+#endif
+
+#if USE_WIFI_ADVANCED
+#include "HTTPClient.h"
+#include "ESP8266Interface.h"
+#include "TCPSocketConnection.h"
+#include "Websocket.h"
+#include "rtos.h"
+
+const char *httpDest = "http://143.215.98.59/";
+ESP8266Interface wifi(p28, p27, p29, "GTother", "GeorgeP@1927", 115200); // TX,RX,Reset,SSID,Password,Baud
+
+HTTPClient http;
+char responseBuffer[512];
+
+void advWifiSetup();
+void advWifiTest();
+void advWifiSendCommand(int val);
+
+Mutex advWifiMutex;
+void advWifiThread(void const *args);
+int gKeycode = -1;
+bool gKeycodeLatch = false;
+#endif
+
+int main() {
+    pc.printf("====\n\r===\n\r===\n\r=== Reset ====\n\r====\n\r\n\r");
+    
+    led1 = led2 = led3 = led4 = 0;
+    
+    #if USE_CAP
+    interrupt.fall(&fallInterrupt);
+    interrupt.mode(PullUp);
+    #endif
+
+    // Wifi setup
+    #if USE_WIFI_BASIC
+    basicWifiSetup();
+    #endif
+    
+    #if USE_WIFI_ADVANCED
+    advWifiSetup();
+    Thread t2(advWifiThread);
+    #endif
+
+    while(1) {
+        #if USE_WIFI_BASIC
+        basicWifiLoop();
+        #endif
+        
+        #if USE_WIFI_ADVANCED
+        //for (int i = 0; i < 2; i++) {
+        //    advWifiSendCommand(i);
+        //}
+        #endif
+    }
+}
+
+#if USE_CAP
+// Light up LEDs with capacitive touch interrupt stuff
+void fallInterrupt() {
+    int key_code = 0;
+    int i = 0;
+    
+    // Address 0x00 has touch status of 0 - 7 (7, 6, 5, 4, 3, 2, 1, 0)
+    // Address 0x01 has touch status of 8 - 11 (X,X,X,X, 11, 10, 9, 8)
+    // Combined value is a bitfield type thing
+    int value = mpr121.read(0x00);
+    value += mpr121.read(0x01) << 8;
+    
+    // Takes highest set key and uses it
+    int bits[12];
+    for (i = 0; i < 12; i++) {
+        bits[i] = (value >> i) & 0x01;
+        if (bits[i] == 1) {
+            key_code = i + 1;
+        }
+    }
+    led4 = (key_code >> 0) & 0x01;
+    led3 = (key_code >> 1) & 0x01;
+    led2 = (key_code >> 2) & 0x01;
+    led1 = (key_code >> 3) & 0x01;
+
+    #if USE_WIFI_ADVANCED
+    gKeycode = key_code - 1;
+    gKeycodeLatch = true;
+    #endif
+}
+#endif
+
+#if USE_WIFI_BASIC
+// Sets new ESP8266 baurate, change the esp.baud(xxxxx) to match your new setting once this has been executed
+void ESPsetbaudrate()
+{
+    strcpy(snd, "AT+CIOBAUD=115200\r\n");   // change the numeric value to the required baudrate
+    SendCMD();
+}
+ 
+//  +++++++++++++++++++++++++++++++++ This is for ESP8266 config only, run this once to set up the ESP8266 +++++++++++++++
+void ESPconfig()
+{
+    wait(5);
+    strcpy(snd,"AT\r\n");
+    SendCMD();
+    wait(1);
+    strcpy(snd,"AT\r\n");
+    SendCMD();
+    wait(1);
+    strcpy(snd,"AT\r\n");
+    SendCMD();
+    timeout=1;
+    getreply();
+    wait(1);
+    pc.printf("\f---------- Starting ESP Config ----------\r\n\n");
+ 
+    pc.printf("---------- Reset & get Firmware ----------\r\n");
+    strcpy(snd,"AT+RST\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Get Version ----------\r\n");
+    strcpy(snd,"AT+GMR\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(3);
+ 
+    // set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station)
+    pc.printf("\n---------- Setting Mode ----------\r\n");
+    strcpy(snd, "AT+CWMODE=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(2);
+ 
+    // set CIPMUX to 0=Single,1=Multi
+    pc.printf("\n---------- Setting Connection Mode ----------\r\n");
+    strcpy(snd, "AT+CIPMUX=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Listing Access Points ----------\r\n");
+    strcpy(snd, "AT+CWLAP\r\n");
+    SendCMD();
+    timeout=15;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Connecting to AP ----------\r\n");
+    pc.printf("ssid = %s   pwd = %s\r\n",ssid,pwd);
+    strcpy(snd, "AT+CWJAP=\"");
+    strcat(snd, ssid);
+    strcat(snd, "\",\"");
+    strcat(snd, pwd);
+    strcat(snd, "\"\r\n");
+    SendCMD();
+    timeout=10;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(5);
+ 
+    pc.printf("\n---------- Get IP's ----------\r\n");
+    strcpy(snd, "AT+CIFSR\r\n");
+    SendCMD();
+    timeout=3;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(1);
+ 
+    pc.printf("\n---------- Get Connection Status ----------\r\n");
+    strcpy(snd, "AT+CIPSTATUS\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buf);
+ 
+    pc.printf("\n\n\n  If you get a valid (non zero) IP, ESP8266 has been set up.\r\n");
+    pc.printf("  Run this if you want to reconfig the ESP8266 at any time.\r\n");
+    pc.printf("  It saves the SSID and password settings internally\r\n");
+    wait(10);
+}
+ 
+void SendCMD()
+{
+    esp.printf("%s", snd);
+}
+ 
+void getreply()
+{
+    memset(buf, '\0', sizeof(buf));
+    t.start();
+    ended=0;
+    count=0;
+    while(!ended) {
+        if(esp.readable()) {
+            buf[count] = esp.getc();
+            count++;
+        }
+        if(t.read() > timeout) {
+            ended = 1;
+            t.stop();
+            t.reset();
+        }
+    }
+}
+
+// Basic wifi setup code
+void basicWifiSetup() {
+    reset=0; //hardware reset for 8266
+    pc.baud(9600);  // set what you want here depending on your terminal program speed
+    pc.printf("\f\n\r-------------ESP8266 Hardware Reset-------------\n\r");
+    wait(0.5);
+    reset=1;
+    timeout=2;
+    getreply();
+ 
+    esp.baud(115200);   // change this to the new ESP8266 baudrate if it is changed at any time.
+ 
+    //ESPsetbaudrate();   //******************  include this routine to set a different ESP8266 baudrate  ******************
+ 
+    ESPconfig();        //******************  include Config to set the ESP8266 configuration  ***********************
+}
+
+// Loop for basic wifi stuff
+void basicWifiLoop() {
+    pc.printf("\n---------- Listing Acces Points ----------\r\n");
+    strcpy(snd, "AT+CWLAP\r\n");
+    SendCMD();
+    timeout=15;
+    getreply();
+    pc.printf(buf);
+    wait(2);
+    pc.printf("\n---------- Get IP and MAC ----------\r\n");
+    strcpy(snd, "AT+CIFSR\r\n");
+    SendCMD();
+    timeout=10;
+    getreply();
+    pc.printf(buf);
+    wait(2);
+}
+#endif
+
+#if USE_WIFI_ADVANCED
+// Setup advanced wifi
+void advWifiSetup() {
+    pc.baud(9600);
+    wifi.init(); //Reset
+    wifi.connect(); //Use DHCP
+    
+    advWifiTest(); // Test the connection
+}
+
+// Test that the advanced wifi is working with pastebin get/post
+void advWifiTest() {
+    bool getSuccess = false,
+         postSuccess = false;
+    
+    //GET
+    pc.printf("\nTrying to fetch page using GET...\n\r");
+    int httpResp = http.get("http://54.175.222.246/get", responseBuffer, 512);//IP address is httpbin.org/get
+    if (!httpResp) {
+        pc.printf("Page fetched successfully - read %d characters\n\r", strlen(responseBuffer));
+        pc.printf("Result: %s\n\r", responseBuffer);
+        getSuccess = true;
+    } else {
+        pc.printf("Error - ret = %d - HTTP return code = %d\n\r", httpResp, http.getHTTPResponseCode());
+        getSuccess = false;
+    }
+    
+    //POST
+    HTTPMap postDataMap;
+    HTTPText responseTextBind(responseBuffer, 512);
+    postDataMap.put("Hello", "World");
+    postDataMap.put("test", "1234");
+    pc.printf("\nTrying to POST data to httpbin.org/post...\n\r");
+    httpResp = http.post("http://54.175.222.246/post", postDataMap, &responseTextBind);//IP address is httpbin.org/post
+    if (!httpResp) {
+      pc.printf("Executed POST successfully - read %d characters\n\r", strlen(responseBuffer));
+      pc.printf("Result: %s\n\r", responseBuffer);
+      postSuccess = true;
+    }
+    else {
+      pc.printf("Error - ret = %d - HTTP return code = %d\n\r", httpResp, http.getHTTPResponseCode());
+      postSuccess = false;
+    }
+    
+    if (getSuccess && postSuccess) {
+        pc.printf("\n\r=== WIFI SETUP AND GOOD TO GO====\n\r\n\r");
+    } else {
+        pc.printf("\n\r=== WIFI BAD - Try at your own risk... ====\n\r\n\r");
+    }
+}
+
+// Send an advanced wifi command (non-blocking)
+// INPUTS:
+//    keycode - Keycode from capacitive touch screen
+void advWifiSendCommand(int keycode) {
+    pc.printf("Send command %d\n\r", keycode);
+    
+    char sendVal[32];
+    switch (keycode) {
+        case 2:
+            sprintf(sendVal, "fwd");
+            break;
+        case 5:
+            sprintf(sendVal, "left");
+            break;
+        case 7:
+            sprintf(sendVal, "right");
+            break;
+        case 10:
+            sprintf(sendVal, "back");
+            break;
+        default:
+            pc.printf("\tBailing from bad keycode '%d'...\n\r", keycode);
+            return; // Bail
+    }
+    
+    // We good to go? Grab a mutex
+    //if (!advWifiMutex.trylock()) {
+    //    pc.printf("\tFailed to lock mutex. Bailing...\n\r");
+    //    return;
+    //}
+    
+    // Clear buffer
+    responseBuffer[0] = '\0';
+    
+    // Setup bindings
+    HTTPMap postDataMap;
+    HTTPText responseTextBind(responseBuffer, 512);
+    postDataMap.put("keycode", sendVal);
+    
+    pc.printf("Turning: %s with %d\t(%s)\n\r", sendVal, keycode, httpDest);
+    int httpResp = http.post(httpDest, postDataMap, &responseTextBind);
+    if (!httpResp) {
+        pc.printf("\tSuccess!\n\r");
+        pc.printf("\tResult: %s\n\r", responseBuffer);
+    } else {
+        pc.printf("\tFailed!\n\r");
+        pc.printf("\tResult: %s\n\r", responseBuffer);
+        pc.printf("\tRespVal(%d) \ ResponseCode(%d)\n\r", httpResp, http.getHTTPResponseCode());
+    }
+    
+    //advWifiMutex.unlock();
+}
+
+void advWifiThread(void const *args) {
+    while(1) {
+        if (gKeycodeLatch && gKeycode != -1) {
+            advWifiSendCommand(gKeycode);
+            gKeycodeLatch = false;
+        }
+        
+        Thread::wait(100);
+    }
+}
+#endif
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