#include <Arduino.h> /**  StreamHTTPClient.ino  Created on: 24.05.2015 */ #include <Arduino.h> #include <ESP8266WiFi.h> #include <ESP8266WiFiMulti.h> #include <ESP8266HTTPClient.h> 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("Hogwarts", "Alohomora6444"); } void loop() { // wait for WiFi connection if ((WiFiMulti.run() == WL_CONNECTED)) { std::unique_ptr<BearSSL::WiFiClientSecure> client(new BearSSL::WiFiClientSecure); bool mfln = client->probeMaxFragmentLength("tls.mbed.org", 443, 1024); Serial.printf("\nConnecting to https://tls.mbed.org\n"); Serial.printf("Maximum fragment Length negotiation supported: %s\n", mfln ? "yes" : "no"); if (mfln) { client->setBufferSizes(1024, 1024); } Serial.print("[HTTPS] begin...\n"); // configure server and url const uint8_t fingerprint[20] = {0xEB, 0xD9, 0xDF, 0x37, 0xC2, 0xCC, 0x84, 0x89, 0x00, 0xA0, 0x58, 0x52, 0x24, 0x04, 0xE4, 0x37, 0x3E, 0x2B, 0xF1, 0x41}; client->setFingerprint(fingerprint); HTTPClient https; if (https.begin(*client, "https://tls.mbed.org/")) { Serial.print("[HTTPS] GET...\n"); // start connection and send HTTP header int httpCode = https.GET(); 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) { // get lenght of document (is -1 when Server sends no Content-Length header) int len = https.getSize(); // create buffer for read static uint8_t buff[128] = { 0 }; // read all data from server while (https.connected() && (len > 0 || len == -1)) { // get available data size size_t size = client->available(); if (size) { // read up to 128 byte int c = client->readBytes(buff, ((size > sizeof(buff)) ? sizeof(buff) : size)); // write it to Serial Serial.write(buff, c); if (len > 0) { len -= c; } } delay(1); } Serial.println(); Serial.print("[HTTPS] connection closed or file end.\n"); } } else { Serial.printf("[HTTPS] GET... failed, error: %s\n", https.errorToString(httpCode).c_str()); } https.end(); } else { Serial.printf("Unable to connect\n"); } } Serial.println("Wait 10s before the next round..."); delay(10000); }