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| 1 | +/** |
| 2 | + * BasicHTTPClient.ino |
| 3 | + * |
| 4 | + * Created on: 24.05.2015 |
| 5 | + * |
| 6 | + */ |
| 7 | + |
| 8 | +#include <Arduino.h> |
| 9 | + |
| 10 | +#include <WiFi.h> |
| 11 | +#include <WiFiMulti.h> |
| 12 | + |
| 13 | +#include <HTTPClient.h> |
| 14 | + |
| 15 | +#define USE_SERIAL Serial |
| 16 | + |
| 17 | +WiFiMulti wifiMulti; |
| 18 | + |
| 19 | +/* |
| 20 | +const char* ca = \ |
| 21 | +"-----BEGIN CERTIFICATE-----\n" \ |
| 22 | +"MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/\n" \ |
| 23 | +"MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT\n" \ |
| 24 | +"DkRTVCBSb290IENBIFgzMB4XDTE2MDMxNzE2NDA0NloXDTIxMDMxNzE2NDA0Nlow\n" \ |
| 25 | +"SjELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUxldCdzIEVuY3J5cHQxIzAhBgNVBAMT\n" \ |
| 26 | +"GkxldCdzIEVuY3J5cHQgQXV0aG9yaXR5IFgzMIIBIjANBgkqhkiG9w0BAQEFAAOC\n" \ |
| 27 | +"AQ8AMIIBCgKCAQEAnNMM8FrlLke3cl03g7NoYzDq1zUmGSXhvb418XCSL7e4S0EF\n" \ |
| 28 | +"q6meNQhY7LEqxGiHC6PjdeTm86dicbp5gWAf15Gan/PQeGdxyGkOlZHP/uaZ6WA8\n" \ |
| 29 | +"SMx+yk13EiSdRxta67nsHjcAHJyse6cF6s5K671B5TaYucv9bTyWaN8jKkKQDIZ0\n" \ |
| 30 | +"Z8h/pZq4UmEUEz9l6YKHy9v6Dlb2honzhT+Xhq+w3Brvaw2VFn3EK6BlspkENnWA\n" \ |
| 31 | +"a6xK8xuQSXgvopZPKiAlKQTGdMDQMc2PMTiVFrqoM7hD8bEfwzB/onkxEz0tNvjj\n" \ |
| 32 | +"/PIzark5McWvxI0NHWQWM6r6hCm21AvA2H3DkwIDAQABo4IBfTCCAXkwEgYDVR0T\n" \ |
| 33 | +"AQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAYYwfwYIKwYBBQUHAQEEczBxMDIG\n" \ |
| 34 | +"CCsGAQUFBzABhiZodHRwOi8vaXNyZy50cnVzdGlkLm9jc3AuaWRlbnRydXN0LmNv\n" \ |
| 35 | +"bTA7BggrBgEFBQcwAoYvaHR0cDovL2FwcHMuaWRlbnRydXN0LmNvbS9yb290cy9k\n" \ |
| 36 | +"c3Ryb290Y2F4My5wN2MwHwYDVR0jBBgwFoAUxKexpHsscfrb4UuQdf/EFWCFiRAw\n" \ |
| 37 | +"VAYDVR0gBE0wSzAIBgZngQwBAgEwPwYLKwYBBAGC3xMBAQEwMDAuBggrBgEFBQcC\n" \ |
| 38 | +"ARYiaHR0cDovL2Nwcy5yb290LXgxLmxldHNlbmNyeXB0Lm9yZzA8BgNVHR8ENTAz\n" \ |
| 39 | +"MDGgL6AthitodHRwOi8vY3JsLmlkZW50cnVzdC5jb20vRFNUUk9PVENBWDNDUkwu\n" \ |
| 40 | +"Y3JsMB0GA1UdDgQWBBSoSmpjBH3duubRObemRWXv86jsoTANBgkqhkiG9w0BAQsF\n" \ |
| 41 | +"AAOCAQEA3TPXEfNjWDjdGBX7CVW+dla5cEilaUcne8IkCJLxWh9KEik3JHRRHGJo\n" \ |
| 42 | +"uM2VcGfl96S8TihRzZvoroed6ti6WqEBmtzw3Wodatg+VyOeph4EYpr/1wXKtx8/\n" \ |
| 43 | +"wApIvJSwtmVi4MFU5aMqrSDE6ea73Mj2tcMyo5jMd6jmeWUHK8so/joWUoHOUgwu\n" \ |
| 44 | +"X4Po1QYz+3dszkDqMp4fklxBwXRsW10KXzPMTZ+sOPAveyxindmjkW8lGy+QsRlG\n" \ |
| 45 | +"PfZ+G6Z6h7mjem0Y+iWlkYcV4PIWL1iwBi8saCbGS5jN2p8M+X+Q7UNKEkROb3N6\n" \ |
| 46 | +"KOqkqm57TH2H3eDJAkSnh6/DNFu0Qg==\n" \ |
| 47 | +"-----END CERTIFICATE-----\n"; |
| 48 | +*/ |
| 49 | + |
| 50 | +void setup() { |
| 51 | + |
| 52 | + USE_SERIAL.begin(115200); |
| 53 | + |
| 54 | + USE_SERIAL.println(); |
| 55 | + USE_SERIAL.println(); |
| 56 | + USE_SERIAL.println(); |
| 57 | + |
| 58 | + for(uint8_t t = 4; t > 0; t--) { |
| 59 | + USE_SERIAL.printf("[SETUP] WAIT %d...\n", t); |
| 60 | + USE_SERIAL.flush(); |
| 61 | + delay(1000); |
| 62 | + } |
| 63 | + |
| 64 | + wifiMulti.addAP("SSID", "PASSWORD"); |
| 65 | + |
| 66 | +} |
| 67 | + |
| 68 | +void loop() { |
| 69 | + // wait for WiFi connection |
| 70 | + if((wifiMulti.run() == WL_CONNECTED)) { |
| 71 | + |
| 72 | + HTTPClient http; |
| 73 | + |
| 74 | + USE_SERIAL.print("[HTTP] begin...\n"); |
| 75 | + // configure traged server and url |
| 76 | + //http.begin("https://www.howsmyssl.com/a/check", ca); //HTTPS |
| 77 | + http.begin("http://example.com/index.html"); //HTTP |
| 78 | + |
| 79 | + USE_SERIAL.print("[HTTP] GET...\n"); |
| 80 | + // start connection and send HTTP header |
| 81 | + int httpCode = http.GET(); |
| 82 | + |
| 83 | + // httpCode will be negative on error |
| 84 | + if(httpCode > 0) { |
| 85 | + // HTTP header has been send and Server response header has been handled |
| 86 | + USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode); |
| 87 | + |
| 88 | + // file found at server |
| 89 | + if(httpCode == HTTP_CODE_OK) { |
| 90 | + String payload = http.getString(); |
| 91 | + USE_SERIAL.println(payload); |
| 92 | + } |
| 93 | + } else { |
| 94 | + USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str()); |
| 95 | + } |
| 96 | + |
| 97 | + http.end(); |
| 98 | + } |
| 99 | + |
| 100 | + delay(5000); |
| 101 | +} |
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