78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/*
|
|
RadioLib HTTP POST Example
|
|
|
|
This example sends HTTP POST request using ESP8266 WiFi module.
|
|
|
|
Please note that the response will be saved including header. HTTP header size
|
|
can easily exceed Arduino resources and cause the program to behave erratically.
|
|
|
|
IMPORTANT: Before uploading this example, make sure that the ESP8266 module is running
|
|
AT firmware (can be found in the /extras folder of the library)!
|
|
*/
|
|
|
|
// include the library
|
|
#include <RadioLib.h>
|
|
|
|
// ESP8266 module is in slot A on the shield
|
|
ESP8266 wifi = RadioShield.ModuleA;
|
|
|
|
// create HTTP client instance using the wifi module
|
|
// the default port used for HTTP is 80
|
|
HTTPClient http(&wifi, 80);
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
|
|
// initialize ESP8266
|
|
Serial.print(F("[ESP8266] Initializing ... "));
|
|
// baudrate: 9600 baud
|
|
int state = wifi.begin(9600);
|
|
if(state == ERR_NONE) {
|
|
Serial.println(F("success!"));
|
|
} else {
|
|
Serial.print(F("failed, code "));
|
|
Serial.println(state);
|
|
while(true);
|
|
}
|
|
|
|
// join access point
|
|
Serial.print(F("[ESP8266] Joining AP ... "));
|
|
// name: SSID
|
|
// password: password
|
|
state = wifi.join("SSID", "password");
|
|
if(state == ERR_NONE) {
|
|
Serial.println(F("success!"));
|
|
} else {
|
|
Serial.print(F("failed, code "));
|
|
Serial.println(state);
|
|
while(true);
|
|
}
|
|
|
|
}
|
|
|
|
void loop() {
|
|
// send HTTP POST request to www.httpbin.org/status/404
|
|
// the server doesn't process the posted data, it just returns
|
|
// response with the status code 404
|
|
String response;
|
|
Serial.print(F("[ESP8266] Sending HTTP POST request ... "));
|
|
// URL: www.httpbin.org/status/404
|
|
// content: str
|
|
// content type: text/plain
|
|
int http_code = http.post("www.httpbin.org/status/404", "str", response);
|
|
if(http_code > 0) {
|
|
Serial.print(F("HTTP code "));
|
|
Serial.println(http_code);
|
|
Serial.print(F("[ESP8266] Response is "));
|
|
Serial.print(response.length());
|
|
Serial.println(F(" bytes long."));
|
|
Serial.println(response);
|
|
} else {
|
|
Serial.print(F("failed, code "));
|
|
Serial.println(http_code);
|
|
}
|
|
|
|
// wait for a second before sending new request
|
|
delay(1000);
|
|
}
|
|
|