Akash Verma
/
ESP8266-FRDM-KL25Z-THINGSPEA_Upstream
potentiometer and LDR sensor Data send to the cloud server.
main.cpp@0:34d3f68b920e, 2017-03-18 (annotated)
- Committer:
- eduvanceIoT
- Date:
- Sat Mar 18 09:00:35 2017 +0000
- Revision:
- 0:34d3f68b920e
- Child:
- 1:8ab009672555
Eduvance ThingSpeak using ESP8266 and frdm kl25z
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
eduvanceIoT | 0:34d3f68b920e | 1 | #include "mbed.h" |
eduvanceIoT | 0:34d3f68b920e | 2 | #include "ESP8266.h" |
eduvanceIoT | 0:34d3f68b920e | 3 | |
eduvanceIoT | 0:34d3f68b920e | 4 | Serial pc(USBTX,USBRX); |
eduvanceIoT | 0:34d3f68b920e | 5 | |
eduvanceIoT | 0:34d3f68b920e | 6 | //POT sensor |
eduvanceIoT | 0:34d3f68b920e | 7 | AnalogIn pot(PTB0); |
eduvanceIoT | 0:34d3f68b920e | 8 | |
eduvanceIoT | 0:34d3f68b920e | 9 | //wifi UART port and baud rate |
eduvanceIoT | 0:34d3f68b920e | 10 | ESP8266 wifi(PTE0, PTE1, 115200); |
eduvanceIoT | 0:34d3f68b920e | 11 | |
eduvanceIoT | 0:34d3f68b920e | 12 | //buffers for wifi library |
eduvanceIoT | 0:34d3f68b920e | 13 | char snd[255],resp[1000]; |
eduvanceIoT | 0:34d3f68b920e | 14 | char http_cmd[300], comm[300]; |
eduvanceIoT | 0:34d3f68b920e | 15 | |
eduvanceIoT | 0:34d3f68b920e | 16 | int timeout = 8000; //timeout for wifi commands |
eduvanceIoT | 0:34d3f68b920e | 17 | |
eduvanceIoT | 0:34d3f68b920e | 18 | //SSID and password for connection |
eduvanceIoT | 0:34d3f68b920e | 19 | #define SSID "eduvanceAP" //"AmeyaHotspot"//"IoTServer" //"AmeyaHotspot" //"Xperia S_f19d" |
eduvanceIoT | 0:34d3f68b920e | 20 | #define PASS "winteriscoming" //"12345678" //"iotserver" //"12345678" //"profpappu" |
eduvanceIoT | 0:34d3f68b920e | 21 | |
eduvanceIoT | 0:34d3f68b920e | 22 | //Remote IP |
eduvanceIoT | 0:34d3f68b920e | 23 | #define IP "184.106.153.149" |
eduvanceIoT | 0:34d3f68b920e | 24 | //#define IP "https://api.thingspeak.com" |
eduvanceIoT | 0:34d3f68b920e | 25 | //#define IP "192.168.0.25" |
eduvanceIoT | 0:34d3f68b920e | 26 | //waterlevelue global variable |
eduvanceIoT | 0:34d3f68b920e | 27 | float waterlevel = 0; |
eduvanceIoT | 0:34d3f68b920e | 28 | |
eduvanceIoT | 0:34d3f68b920e | 29 | //Public and private keys for phant |
eduvanceIoT | 0:34d3f68b920e | 30 | char* Update_Key = "4K5STYBPH6MC8O54"; |
eduvanceIoT | 0:34d3f68b920e | 31 | //char* Private_Key = "GPoWnRM60yidrB0e1pXD"; |
eduvanceIoT | 0:34d3f68b920e | 32 | |
eduvanceIoT | 0:34d3f68b920e | 33 | //Wifi init function |
eduvanceIoT | 0:34d3f68b920e | 34 | void wifi_initialize(void){ |
eduvanceIoT | 0:34d3f68b920e | 35 | |
eduvanceIoT | 0:34d3f68b920e | 36 | pc.printf("******** Resetting wifi module ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 37 | wifi.Reset(); |
eduvanceIoT | 0:34d3f68b920e | 38 | |
eduvanceIoT | 0:34d3f68b920e | 39 | //wait for 5 seconds for response, else display no response receiveed |
eduvanceIoT | 0:34d3f68b920e | 40 | if (wifi.RcvReply(resp, 5000)) |
eduvanceIoT | 0:34d3f68b920e | 41 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 42 | else |
eduvanceIoT | 0:34d3f68b920e | 43 | pc.printf("No response"); |
eduvanceIoT | 0:34d3f68b920e | 44 | |
eduvanceIoT | 0:34d3f68b920e | 45 | pc.printf("******** Setting Station mode of wifi with AP ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 46 | wifi.SetMode(1); // set transparent mode |
eduvanceIoT | 0:34d3f68b920e | 47 | if (wifi.RcvReply(resp, timeout)) //receive a response from ESP |
eduvanceIoT | 0:34d3f68b920e | 48 | pc.printf("%s",resp); //Print the response onscreen |
eduvanceIoT | 0:34d3f68b920e | 49 | else |
eduvanceIoT | 0:34d3f68b920e | 50 | pc.printf("No response while setting mode. \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 51 | |
eduvanceIoT | 0:34d3f68b920e | 52 | pc.printf("******** Joining network with SSID and PASS ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 53 | wifi.Join(SSID, PASS); |
eduvanceIoT | 0:34d3f68b920e | 54 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 55 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 56 | else |
eduvanceIoT | 0:34d3f68b920e | 57 | pc.printf("No response while connecting to network \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 58 | |
eduvanceIoT | 0:34d3f68b920e | 59 | pc.printf("******** Getting IP and MAC of module ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 60 | wifi.GetIP(resp); |
eduvanceIoT | 0:34d3f68b920e | 61 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 62 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 63 | else |
eduvanceIoT | 0:34d3f68b920e | 64 | pc.printf("No response while getting IP \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 65 | |
eduvanceIoT | 0:34d3f68b920e | 66 | pc.printf("******** Setting WIFI UART passthrough ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 67 | wifi.setTransparent(); |
eduvanceIoT | 0:34d3f68b920e | 68 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 69 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 70 | else |
eduvanceIoT | 0:34d3f68b920e | 71 | pc.printf("No response while setting wifi passthrough. \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 72 | wait(1); |
eduvanceIoT | 0:34d3f68b920e | 73 | |
eduvanceIoT | 0:34d3f68b920e | 74 | pc.printf("******** Setting single connection mode ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 75 | wifi.SetSingle(); |
eduvanceIoT | 0:34d3f68b920e | 76 | wifi.RcvReply(resp, timeout); |
eduvanceIoT | 0:34d3f68b920e | 77 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 78 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 79 | else |
eduvanceIoT | 0:34d3f68b920e | 80 | pc.printf("No response while setting single connection \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 81 | wait(1); |
eduvanceIoT | 0:34d3f68b920e | 82 | } |
eduvanceIoT | 0:34d3f68b920e | 83 | |
eduvanceIoT | 0:34d3f68b920e | 84 | void wifi_send(void){ |
eduvanceIoT | 0:34d3f68b920e | 85 | |
eduvanceIoT | 0:34d3f68b920e | 86 | pc.printf("******** Starting TCP connection on IP and port ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 87 | wifi.startTCPConn(IP,80); //cipstart |
eduvanceIoT | 0:34d3f68b920e | 88 | wifi.RcvReply(resp, timeout); |
eduvanceIoT | 0:34d3f68b920e | 89 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 90 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 91 | else |
eduvanceIoT | 0:34d3f68b920e | 92 | pc.printf("No response while starting TCP connection \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 93 | wait(1); |
eduvanceIoT | 0:34d3f68b920e | 94 | |
eduvanceIoT | 0:34d3f68b920e | 95 | //create link |
eduvanceIoT | 0:34d3f68b920e | 96 | sprintf(http_cmd,"/update?api_key=%s&field1=%f",Update_Key,waterlevel); |
eduvanceIoT | 0:34d3f68b920e | 97 | pc.printf(http_cmd); |
eduvanceIoT | 0:34d3f68b920e | 98 | |
eduvanceIoT | 0:34d3f68b920e | 99 | pc.printf("******** Sending URL to wifi ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 100 | wifi.sendURL(http_cmd, comm); //cipsend and get command |
eduvanceIoT | 0:34d3f68b920e | 101 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 102 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 103 | |
eduvanceIoT | 0:34d3f68b920e | 104 | pc.printf("No response while sending URL \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 105 | |
eduvanceIoT | 0:34d3f68b920e | 106 | //wifi.SendCMD("AT+CIPCLOSE"); //Close the connection to server |
eduvanceIoT | 0:34d3f68b920e | 107 | //wifi.RcvReply(resp, timeout); |
eduvanceIoT | 0:34d3f68b920e | 108 | //pc.printf("%s", resp); |
eduvanceIoT | 0:34d3f68b920e | 109 | } |
eduvanceIoT | 0:34d3f68b920e | 110 | |
eduvanceIoT | 0:34d3f68b920e | 111 | int main () { |
eduvanceIoT | 0:34d3f68b920e | 112 | |
eduvanceIoT | 0:34d3f68b920e | 113 | |
eduvanceIoT | 0:34d3f68b920e | 114 | wifi_initialize(); |
eduvanceIoT | 0:34d3f68b920e | 115 | |
eduvanceIoT | 0:34d3f68b920e | 116 | while (1) { |
eduvanceIoT | 0:34d3f68b920e | 117 | waterlevel = 255*pot.read(); |
eduvanceIoT | 0:34d3f68b920e | 118 | pc.printf("Current waterlevel is = %.3f \r\n", waterlevel); |
eduvanceIoT | 0:34d3f68b920e | 119 | |
eduvanceIoT | 0:34d3f68b920e | 120 | wifi_send(); |
eduvanceIoT | 0:34d3f68b920e | 121 | //wait(5); |
eduvanceIoT | 0:34d3f68b920e | 122 | } |
eduvanceIoT | 0:34d3f68b920e | 123 | } |