![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
project
Dependencies: mbed HTTPClient LM75B mbed-rtos EthernetInterface MMA7660
Diff: main.cpp
- Revision:
- 0:34d3f68b920e
- Child:
- 1:21d76b260bc6
diff -r 000000000000 -r 34d3f68b920e main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat Mar 18 09:00:35 2017 +0000 @@ -0,0 +1,123 @@ +#include "mbed.h" +#include "ESP8266.h" + +Serial pc(USBTX,USBRX); + +//POT sensor +AnalogIn pot(PTB0); + +//wifi UART port and baud rate +ESP8266 wifi(PTE0, PTE1, 115200); + +//buffers for wifi library +char snd[255],resp[1000]; +char http_cmd[300], comm[300]; + +int timeout = 8000; //timeout for wifi commands + +//SSID and password for connection +#define SSID "eduvanceAP" //"AmeyaHotspot"//"IoTServer" //"AmeyaHotspot" //"Xperia S_f19d" +#define PASS "winteriscoming" //"12345678" //"iotserver" //"12345678" //"profpappu" + +//Remote IP +#define IP "184.106.153.149" +//#define IP "https://api.thingspeak.com" +//#define IP "192.168.0.25" +//waterlevelue global variable +float waterlevel = 0; + +//Public and private keys for phant +char* Update_Key = "4K5STYBPH6MC8O54"; +//char* Private_Key = "GPoWnRM60yidrB0e1pXD"; + +//Wifi init function +void wifi_initialize(void){ + + pc.printf("******** Resetting wifi module ********\r\n"); + wifi.Reset(); + + //wait for 5 seconds for response, else display no response receiveed + if (wifi.RcvReply(resp, 5000)) + pc.printf("%s",resp); + else + pc.printf("No response"); + + pc.printf("******** Setting Station mode of wifi with AP ********\r\n"); + wifi.SetMode(1); // set transparent mode + if (wifi.RcvReply(resp, timeout)) //receive a response from ESP + pc.printf("%s",resp); //Print the response onscreen + else + pc.printf("No response while setting mode. \r\n"); + + pc.printf("******** Joining network with SSID and PASS ********\r\n"); + wifi.Join(SSID, PASS); + if (wifi.RcvReply(resp, timeout)) + pc.printf("%s",resp); + else + pc.printf("No response while connecting to network \r\n"); + + pc.printf("******** Getting IP and MAC of module ********\r\n"); + wifi.GetIP(resp); + if (wifi.RcvReply(resp, timeout)) + pc.printf("%s",resp); + else + pc.printf("No response while getting IP \r\n"); + + pc.printf("******** Setting WIFI UART passthrough ********\r\n"); + wifi.setTransparent(); + if (wifi.RcvReply(resp, timeout)) + pc.printf("%s",resp); + else + pc.printf("No response while setting wifi passthrough. \r\n"); + wait(1); + + pc.printf("******** Setting single connection mode ********\r\n"); + wifi.SetSingle(); + wifi.RcvReply(resp, timeout); + if (wifi.RcvReply(resp, timeout)) + pc.printf("%s",resp); + else + pc.printf("No response while setting single connection \r\n"); + wait(1); +} + +void wifi_send(void){ + + pc.printf("******** Starting TCP connection on IP and port ********\r\n"); + wifi.startTCPConn(IP,80); //cipstart + wifi.RcvReply(resp, timeout); + if (wifi.RcvReply(resp, timeout)) + pc.printf("%s",resp); + else + pc.printf("No response while starting TCP connection \r\n"); + wait(1); + + //create link + sprintf(http_cmd,"/update?api_key=%s&field1=%f",Update_Key,waterlevel); + pc.printf(http_cmd); + + pc.printf("******** Sending URL to wifi ********\r\n"); + wifi.sendURL(http_cmd, comm); //cipsend and get command + if (wifi.RcvReply(resp, timeout)) + pc.printf("%s",resp); + + pc.printf("No response while sending URL \r\n"); + + //wifi.SendCMD("AT+CIPCLOSE"); //Close the connection to server + //wifi.RcvReply(resp, timeout); + //pc.printf("%s", resp); +} + +int main () { + + + wifi_initialize(); + + while (1) { + waterlevel = 255*pot.read(); + pc.printf("Current waterlevel is = %.3f \r\n", waterlevel); + + wifi_send(); + //wait(5); + } +} \ No newline at end of file