/*
* This sketch demonstrates how to set up a simple HTTP-like server.
* The server will set a GPIO pin depending on the request
* http://server_ip/gpio1/0 will set the GPIO0 low,
* http://server_ip/gpio1/1 will set the GPIO0 high
* http://server_ip/gpi2/0 will set the GPIO2 low,
* http://server_ip/gpi2/1 will set the GPIO2 high
* server_ip is the IP address of the ESP8266 module, will be
* printed to Serial when the module is connected.
*/
// Updated: august 2-2017 - to be used with APP Inventor 2
// Developed by: Hernando Bolaños
#include <ESP8266WiFi.h>
const char* ssid = "FAMILIA BM ";
const char* password = "99091300";
// Create an instance of the server
// specify the port to listen on as an argument
WiFiServer server(80);
void setup() {
Serial.begin(115200);
delay(10);
// prepare GPIO2 - OK
pinMode(2, OUTPUT);
digitalWrite(2, 0);
// prepare GPIO0 -OK
pinMode(0, OUTPUT);
digitalWrite(0, 0);
// Connect to WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
// Start the server
server.begin();
Serial.println("Server started");
// Print the IP address
Serial.println(WiFi.localIP());
}
void loop() {
// Check if a client has connected
WiFiClient client = server.available();
if (!client) {
return;
}
// Wait until the client sends some data
Serial.println("new client");
while(!client.available()){
delay(1);
}
// Read the first line of the request
String req = client.readStringUntil('\r');
Serial.println(req);
client.flush();
// Match the request
int val1;
int val2;
if (req.indexOf("/gpio1/0") != -1)
{val1 = 0;
digitalWrite(0, val1); // Set GPIO2 according to the request
client.flush();
// Prepare the response
String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r MatchBox Prototype APP - LED GREEN on GPIO0 is now ";
s += (val1)?"high":"low";
s += "-MacthBox Device working Good!!\n";
// Send the response to the client
client.print(s);
delay(1);
Serial.println("Client disconnected");
// The client will actually be disconnected
// when the function returns and 'client' object is detroyed
}
if (req.indexOf("/gpio1/1") != -1)
{val1 = 1;
digitalWrite(0, val1); // Set GPIO2 according to the request
client.flush();
// Prepare the response
String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\n MatchBox Prototype APP - LED GREEN on GPIO0 is now ";
s += (val1)?"high":"low";
s += "-MacthBox Device working Good!!\n";
// Send the response to the client
client.print(s);
delay(100);
Serial.println("Client disconnected");
// The client will actually be disconnected
// when the function returns and 'client' object is detroyed
}
if (req.indexOf("/gpio2/0") != -1)
{val2 = 0;
digitalWrite(2, val2); // Set GPIO2 according to the request
client.flush();
// Prepare the response
String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\n MatchBox Prototype APP - LED RED on GPIO2 is now ";
s += (val2)?"high":"low";
s += "-MacthBox Device working Good!!\n";
// Send the response to the client
client.print(s);
delay(100);
Serial.println("Client disconnected");
// The client will actually be disconnected
// when the function returns and 'client' object is detroyed
}
if (req.indexOf("/gpio2/1") != -1)
{val2 = 1;
digitalWrite(2, val2); // Set GPIO2 according to the request
client.flush();
// Prepare the response
String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\n MatchBox Prototype APP - LED RED on GPIO2 is now ";
s += (val2)?"high":"low";
s += "-MacthBox Device working Good\n";
// Send the response to the client
client.print(s);
delay(100);
Serial.println("Client disconnected");
// The client will actually be disconnected
// when the function returns and 'client' object is detroyed}
}
else {
Serial.println("invalid request");
client.stop();
return;
}
}
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