HTTP Client with ESP8266 working example
Dependencies: ESP8266Interface HTTPClient-SSL WebSocketClient mbed-rtos mbed
Fork of ESP8266_WebSockets_HelloWorld by
This repository has been superceded
This project has moved to https://developer.mbed.org/teams/ESP8266/code/mbed-os-example-esp8266/
Introduction
This is a basic Hello World program for interfacing the ESP8266 chip with HTTP. It will execute a GET on httpbin.org/get, and a POST to httpbin.org/post.
ESP8266_HTTP_HelloWorld
- change ssid and passphrase to match your wifi connection
- Initialize ESP8266 with DHCP enabled
- Get mbed.org
- Print the information retrieved
- Post to httbin.org
- Print the information retrieved
You can view the information retrieved through a serial terminal set to 9600 baud.
Successful Execution
you should see something like the following on the terminal if the program successfully executes.
main.cpp
- Committer:
- sarahmarshy
- Date:
- 2015-06-09
- Revision:
- 18:3209e51b731a
- Parent:
- 17:59097e8b5c60
File content as of revision 18:3209e51b731a:
#include "mbed.h" #include "HTTPClient.h" #include "ESP8266Interface.h" #include "TCPSocketConnection.h" #include "Websocket.h" ESP8266Interface wifi(D1,D0,D2,"demossid","password",115200); // TX,RX,Reset,SSID,Password,Baud RawSerial pc(USBTX, USBRX); // tx, rx HTTPClient http; char str[512]; int main() { pc.baud(9600); wifi.init(); //Reset wifi.connect(); //Use DHCP //GET pc.printf("\nTrying to fetch page using GET...\n\r"); int ret = http.get("http://54.175.222.246/get", str, 512);//IP address is httpbin.org/get if (!ret) { pc.printf("Page fetched successfully - read %d characters\n\r", strlen(str)); pc.printf("Result: %s\n\r", str); } else { pc.printf("Error - ret = %d - HTTP return code = %d\n\r", ret, http.getHTTPResponseCode()); } //POST HTTPMap map; HTTPText inText(str, 512); map.put("Hello", "World"); map.put("test", "1234"); printf("\nTrying to POST data to httpbin.org/post...\n\r"); ret = http.post("http://54.175.222.246/post", map, &inText);//IP address is httpbin.org/post if (!ret) { printf("Executed POST successfully - read %d characters\n\r", strlen(str)); printf("Result: %s\n\r", str); } else { printf("Error - ret = %d - HTTP return code = %d\n\r", ret, http.getHTTPResponseCode()); } }