Akash Verma
/
ESP8266-FRDM-KL25Z-THINGSPEA_Upstream
potentiometer and LDR sensor Data send to the cloud server.
main.cpp@1:8ab009672555, 2017-06-17 (annotated)
- Committer:
- SIT2016
- Date:
- Sat Jun 17 09:53:27 2017 +0000
- Revision:
- 1:8ab009672555
- Parent:
- 0:34d3f68b920e
- Child:
- 2:97dbf542ebee
Cleaned Code - Changed variable, Removed unnecessary variables, bugs fixes
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 |
SIT2016 | 1:8ab009672555 | 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 |
SIT2016 | 1:8ab009672555 | 13 | char 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 |
SIT2016 | 1:8ab009672555 | 19 | #define SSID "Eduvance" |
SIT2016 | 1:8ab009672555 | 20 | #define PASS "eduvance123" |
eduvanceIoT | 0:34d3f68b920e | 21 | |
eduvanceIoT | 0:34d3f68b920e | 22 | //Remote IP |
eduvanceIoT | 0:34d3f68b920e | 23 | #define IP "184.106.153.149" |
eduvanceIoT | 0:34d3f68b920e | 24 | |
SIT2016 | 1:8ab009672555 | 25 | //global variable |
SIT2016 | 1:8ab009672555 | 26 | float potvalue = 0; |
SIT2016 | 1:8ab009672555 | 27 | |
SIT2016 | 1:8ab009672555 | 28 | //Update key for thingspeak |
SIT2016 | 1:8ab009672555 | 29 | char* Update_Key = "O1VOWGC3WXI981H6"; |
eduvanceIoT | 0:34d3f68b920e | 30 | |
eduvanceIoT | 0:34d3f68b920e | 31 | //Wifi init function |
eduvanceIoT | 0:34d3f68b920e | 32 | void wifi_initialize(void){ |
eduvanceIoT | 0:34d3f68b920e | 33 | |
eduvanceIoT | 0:34d3f68b920e | 34 | pc.printf("******** Resetting wifi module ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 35 | wifi.Reset(); |
eduvanceIoT | 0:34d3f68b920e | 36 | |
eduvanceIoT | 0:34d3f68b920e | 37 | //wait for 5 seconds for response, else display no response receiveed |
eduvanceIoT | 0:34d3f68b920e | 38 | if (wifi.RcvReply(resp, 5000)) |
eduvanceIoT | 0:34d3f68b920e | 39 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 40 | else |
eduvanceIoT | 0:34d3f68b920e | 41 | pc.printf("No response"); |
eduvanceIoT | 0:34d3f68b920e | 42 | |
eduvanceIoT | 0:34d3f68b920e | 43 | pc.printf("******** Setting Station mode of wifi with AP ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 44 | wifi.SetMode(1); // set transparent mode |
eduvanceIoT | 0:34d3f68b920e | 45 | if (wifi.RcvReply(resp, timeout)) //receive a response from ESP |
eduvanceIoT | 0:34d3f68b920e | 46 | pc.printf("%s",resp); //Print the response onscreen |
eduvanceIoT | 0:34d3f68b920e | 47 | else |
eduvanceIoT | 0:34d3f68b920e | 48 | pc.printf("No response while setting mode. \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 49 | |
eduvanceIoT | 0:34d3f68b920e | 50 | pc.printf("******** Joining network with SSID and PASS ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 51 | wifi.Join(SSID, PASS); |
eduvanceIoT | 0:34d3f68b920e | 52 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 53 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 54 | else |
eduvanceIoT | 0:34d3f68b920e | 55 | pc.printf("No response while connecting to network \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 56 | |
eduvanceIoT | 0:34d3f68b920e | 57 | pc.printf("******** Getting IP and MAC of module ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 58 | wifi.GetIP(resp); |
eduvanceIoT | 0:34d3f68b920e | 59 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 60 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 61 | else |
eduvanceIoT | 0:34d3f68b920e | 62 | pc.printf("No response while getting IP \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 63 | |
eduvanceIoT | 0:34d3f68b920e | 64 | pc.printf("******** Setting WIFI UART passthrough ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 65 | wifi.setTransparent(); |
eduvanceIoT | 0:34d3f68b920e | 66 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 67 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 68 | else |
eduvanceIoT | 0:34d3f68b920e | 69 | pc.printf("No response while setting wifi passthrough. \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 70 | wait(1); |
eduvanceIoT | 0:34d3f68b920e | 71 | |
eduvanceIoT | 0:34d3f68b920e | 72 | pc.printf("******** Setting single connection mode ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 73 | wifi.SetSingle(); |
eduvanceIoT | 0:34d3f68b920e | 74 | wifi.RcvReply(resp, timeout); |
eduvanceIoT | 0:34d3f68b920e | 75 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 76 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 77 | else |
eduvanceIoT | 0:34d3f68b920e | 78 | pc.printf("No response while setting single connection \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 79 | wait(1); |
eduvanceIoT | 0:34d3f68b920e | 80 | } |
eduvanceIoT | 0:34d3f68b920e | 81 | |
eduvanceIoT | 0:34d3f68b920e | 82 | void wifi_send(void){ |
eduvanceIoT | 0:34d3f68b920e | 83 | |
eduvanceIoT | 0:34d3f68b920e | 84 | pc.printf("******** Starting TCP connection on IP and port ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 85 | wifi.startTCPConn(IP,80); //cipstart |
eduvanceIoT | 0:34d3f68b920e | 86 | wifi.RcvReply(resp, timeout); |
eduvanceIoT | 0:34d3f68b920e | 87 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 88 | pc.printf("%s",resp); |
eduvanceIoT | 0:34d3f68b920e | 89 | else |
eduvanceIoT | 0:34d3f68b920e | 90 | pc.printf("No response while starting TCP connection \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 91 | wait(1); |
eduvanceIoT | 0:34d3f68b920e | 92 | |
eduvanceIoT | 0:34d3f68b920e | 93 | //create link |
SIT2016 | 1:8ab009672555 | 94 | sprintf(http_cmd,"/update?api_key=%s&field1=%f",Update_Key,potvalue); |
eduvanceIoT | 0:34d3f68b920e | 95 | pc.printf(http_cmd); |
eduvanceIoT | 0:34d3f68b920e | 96 | |
eduvanceIoT | 0:34d3f68b920e | 97 | pc.printf("******** Sending URL to wifi ********\r\n"); |
eduvanceIoT | 0:34d3f68b920e | 98 | wifi.sendURL(http_cmd, comm); //cipsend and get command |
eduvanceIoT | 0:34d3f68b920e | 99 | if (wifi.RcvReply(resp, timeout)) |
eduvanceIoT | 0:34d3f68b920e | 100 | pc.printf("%s",resp); |
SIT2016 | 1:8ab009672555 | 101 | else |
SIT2016 | 1:8ab009672555 | 102 | pc.printf("No response while sending URL \r\n"); |
eduvanceIoT | 0:34d3f68b920e | 103 | } |
eduvanceIoT | 0:34d3f68b920e | 104 | |
eduvanceIoT | 0:34d3f68b920e | 105 | int main () { |
eduvanceIoT | 0:34d3f68b920e | 106 | |
eduvanceIoT | 0:34d3f68b920e | 107 | |
eduvanceIoT | 0:34d3f68b920e | 108 | wifi_initialize(); |
eduvanceIoT | 0:34d3f68b920e | 109 | |
eduvanceIoT | 0:34d3f68b920e | 110 | while (1) { |
SIT2016 | 1:8ab009672555 | 111 | potvalue = 255*pot.read(); |
SIT2016 | 1:8ab009672555 | 112 | pc.printf("Current potvalue is = %.3f \r\n", potvalue); |
eduvanceIoT | 0:34d3f68b920e | 113 | |
eduvanceIoT | 0:34d3f68b920e | 114 | wifi_send(); |
SIT2016 | 1:8ab009672555 | 115 | wait(30); |
eduvanceIoT | 0:34d3f68b920e | 116 | } |
eduvanceIoT | 0:34d3f68b920e | 117 | } |