main.cpp

00001 #include "mbed.h"
00002 #include "MMA8451Q.h"
00003 #include "ESP8266.h"
00004 
00005 Serial pc(USBTX,USBRX);
00006 
00007 #if   defined (TARGET_KL25Z)
00008   PinName const SDA = PTE25;
00009   PinName const SCL = PTE24;
00010 #else
00011   #error TARGET NOT DEFINED
00012 #endif
00013 
00014 #define MMA8451_I2C_ADDRESS (0x1d<<1)
00015 
00016 
00017 //wifi UART port and baud rate
00018 ESP8266 wifi(PTE0, PTE1, 115200);
00019 
00020 //buffers for wifi library
00021 char resp[1000];
00022 char http_cmd[300], comm[300];
00023 
00024 int timeout = 3000; //timeout for wifi commands
00025 
00026 //SSID and password for connection
00027 #define SSID "Karkhana"
00028 #define PASS "Karkhana2018"
00029 
00030 //Remote IP
00031 #define IP "184.106.153.149" //  52.54.134.167
00032 
00033 
00034 char* Update_Key = "VQG4N1PCODU1C4IU";
00035 
00036 float x, y, z;
00037 
00038 //Wifi init function
00039 void wifi_initialize(void)
00040 {
00041 
00042     pc.printf("******** Resetting wifi module ********\r\n");
00043     wifi.Reset();
00044 
00045     //wait for 5 seconds for response, else display no response receiveed
00046     if (wifi.RcvReply(resp, 5000))
00047         pc.printf("%s",resp);
00048     else
00049         pc.printf("No response");
00050 
00051 
00052     pc.printf("******** Setting Station mode of wifi with AP ********\r\n");
00053     wifi.SetMode(1);    // set transparent  mode
00054     if (wifi.RcvReply(resp, timeout))    //receive a response from ESP
00055         pc.printf("%s",resp);    //Print the response onscreen
00056     else
00057         pc.printf("No response while setting mode. \r\n");
00058 
00059 
00060     pc.printf("******** Joining network with SSID and PASS ********\r\n");
00061     wifi.Join(SSID, PASS);
00062     if (wifi.RcvReply(resp, timeout))
00063         pc.printf("%s",resp);
00064     else
00065         pc.printf("No response while connecting to network \r\n");
00066 
00067 
00068     pc.printf("******** Getting IP and MAC of module ********\r\n");
00069     wifi.GetIP(resp);
00070     if (wifi.RcvReply(resp, timeout))
00071         pc.printf("%s",resp);
00072     else
00073         pc.printf("No response while getting IP \r\n");
00074 
00075 
00076     pc.printf("******** Setting WIFI UART passthrough ********\r\n");
00077     wifi.setTransparent();
00078     if (wifi.RcvReply(resp, timeout))
00079         pc.printf("%s",resp);
00080     else
00081         pc.printf("No response while setting wifi passthrough. \r\n");
00082     wait(1);
00083 
00084 
00085     pc.printf("******** Setting single connection mode ********\r\n");
00086     wifi.SetSingle();
00087     wifi.RcvReply(resp, timeout);
00088     if (wifi.RcvReply(resp, timeout))
00089         pc.printf("%s",resp);
00090     else
00091         pc.printf("No response while setting single connection \r\n");
00092     wait(1);
00093 }
00094 
00095 
00096 void wifi_send(void)
00097 {
00098     pc.printf("******** Starting TCP connection on IP and port ********\r\n");
00099     wifi.startTCPConn(IP,80);    //cipstart
00100     wifi.RcvReply(resp, timeout);
00101     if (wifi.RcvReply(resp, timeout))
00102         pc.printf("%s",resp);
00103     else
00104         pc.printf("No response while starting TCP connection \r\n");
00105     wait(1);
00106 
00107     //create link
00108     sprintf(http_cmd,"/update?api_key=%s&field1=%f&field2=%f&field3=%f",Update_Key,x,y,z);
00109 
00110     pc.printf(http_cmd);
00111 
00112     pc.printf("******** Sending URL to wifi ********\r\n");
00113     wifi.sendURL(http_cmd, comm);   //cipsend and get command
00114     if (wifi.RcvReply(resp, timeout))
00115         pc.printf("%s",resp);
00116     else
00117         pc.printf("No response while sending URL \r\n");
00118 }
00119 
00120 
00121 int main(void)
00122 {
00123     MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
00124 
00125     wifi_initialize();
00126 
00127     printf("MMA8451 ID: %d\n", acc.getWhoAmI());
00128 
00129     while (true) {
00130         
00131         x = abs(acc.getAccX()) * 255;
00132         y = abs(acc.getAccY()) * 255;
00133         z = abs(acc.getAccZ()) * 255;
00134         wifi_send();
00135         wait(3);
00136         printf("X: %1.2f, Y: %1.2f, Z: %1.2f\n", x, y, z);
00137     }
00138 }