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add more documentation and cleanup the example

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This commit is contained in:
Markus Sattler 2015-11-22 11:27:32 +01:00
parent 1e7b9688a5
commit 0a8f5be257
1 changed files with 56 additions and 35 deletions
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91
libraries/ESP8266httpClient/examples/BasicHttpClient/BasicHttpClient.ino
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@ -12,66 +12,87 @@
#include <ESP8266httpClient.h> #include <ESP8266httpClient.h>
#define USE_SERIAL Serial1
ESP8266WiFiMulti WiFiMulti; ESP8266WiFiMulti WiFiMulti;
void setup() { void setup() {
Serial.begin(115200);
USE_SERIAL.begin(115200);
// USE_SERIAL.setDebugOutput(true);
Serial.println(); USE_SERIAL.println();
Serial.println(); USE_SERIAL.println();
Serial.println(); USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
for(uint8_t t = 4; t > 0; t--) { USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);
Serial.printf("[SETUP] WAIT %d...\n", t); USE_SERIAL.flush();
Serial.flush(); delay(1000);
delay(1000); }
}
WiFiMulti.addAP("SSID", "PASSWORD"); WiFiMulti.addAP("SSID", "PASSWORD");
//WiFi.disconnect();
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
} }
void loop() { void loop() {
// wait for WiFi connection
if((WiFiMulti.run() == WL_CONNECTED)) { if((WiFiMulti.run() == WL_CONNECTED)) {
httpClient http; httpClient http;
Serial.print("[HTTP] begin...\n"); USE_SERIAL.print("[HTTP] begin...\n");
// configure traged server and url
http.begin("192.168.1.12", 80, "/test.html"); http.begin("192.168.1.12", 80, "/test.html");
Serial.print("[HTTP] GET...\n"); USE_SERIAL.print("[HTTP] GET...\n");
if(http.GET()) { // start connection and send HTTP header
int httpCode = http.GET();
if(httpCode) {
// HTTP header has been send and Server response header has been handled
Serial.print("[HTTP] GET... ok.\n"); USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);
size_t len = http.getSize(); // file found at server
if(httpCode == 200) {
uint8_t buff[128] = { 0 }; // get lenght of document (is -1 when Server sends no Content-Length header)
WiFiClient stream = http.getStream(); int len = http.getSize();
while(http.connected() && len > 0) {
size_t size = stream.available();
int c = stream.readBytes(buff, ((size > 128) ? 128 : size));
Serial.write(buff, c); // create buffer for read
len -= c; uint8_t buff[128] = { 0 };
// get tcp stream
WiFiClient stream = http.getStream();
// read all data from server
while(http.connected() && (len > 0 || len == -1)) {
// get available data size
size_t size = stream.available();
if(size) {
// read up to 128 byte
int c = stream.readBytes(buff, ((size > sizeof(buff)) ? sizeof(buff) : size));
// write it to Serial
USE_SERIAL.write(buff, c);
if(len > 0) {
len -= c;
}
}
delay(1);
}
USE_SERIAL.println();
USE_SERIAL.print("[HTTP] connection closed or file end.\n");
delay(0);
} }
Serial.println();
Serial.print("[HTTP] connection closed or file end.\n");
} else { } else {
USE_SERIAL.print("[HTTP] GET... faild, no connection or no HTTP server\n");
Serial.print("[HTTP] GET... fail.\n");
} }
delay(10000);
} }
delay(10000);
} }