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- /**
- BasicHTTPSClient.ino
- Created on: 20.08.2018
- */
- #include <Arduino.h>
- #include <ESP8266WiFi.h>
- #include <ESP8266WiFiMulti.h>
- #include <ESP8266HTTPClient.h>
- #include <WiFiClientSecureBearSSL.h>
- // Fingerprint for demo URL, expires on June 2, 2019, needs to be updated well before this date
- const uint8_t fingerprint[20] = {0x5A, 0xCF, 0xFE, 0xF0, 0xF1, 0xA6, 0xF4, 0x5F, 0xD2, 0x11, 0x11, 0xC6, 0x1D, 0x2F, 0x0E, 0xBC, 0x39, 0x8D, 0x50, 0xE0};
- ESP8266WiFiMulti WiFiMulti;
- void setup() {
- Serial.begin(115200);
- // Serial.setDebugOutput(true);
- Serial.println();
- Serial.println();
- Serial.println();
- for (uint8_t t = 4; t > 0; t--) {
- Serial.printf("[SETUP] WAIT %d...\n", t);
- Serial.flush();
- delay(1000);
- }
- WiFi.mode(WIFI_STA);
- WiFiMulti.addAP("SSID", "PASSWORD");
- }
- void loop() {
- // wait for WiFi connection
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- std::unique_ptr<BearSSL::WiFiClientSecure>client(new BearSSL::WiFiClientSecure);
- client->setFingerprint(fingerprint);
- HTTPClient https;
- Serial.print("[HTTPS] begin...\n");
- if (https.begin(*client, "https://jigsaw.w3.org/HTTP/connection.html")) { // HTTPS
- Serial.print("[HTTPS] GET...\n");
- // start connection and send HTTP header
- int httpCode = https.GET();
- // httpCode will be negative on error
- if (httpCode > 0) {
- // HTTP header has been send and Server response header has been handled
- Serial.printf("[HTTPS] GET... code: %d\n", httpCode);
- // file found at server
- if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {
- String payload = https.getString();
- Serial.println(payload);
- }
- } else {
- Serial.printf("[HTTPS] GET... failed, error: %s\n", https.errorToString(httpCode).c_str());
- }
- https.end();
- } else {
- Serial.printf("[HTTPS] Unable to connect\n");
- }
- }
- Serial.println("Wait 10s before next round...");
- delay(10000);
- }
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