mqtt-ir-remote/IRremoteESP8266/examples/IRGCTCPServer/IRGCTCPServer.ino

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2018-07-09 22:04:36 +00:00
/*
* IRremoteESP8266: IRGCTCPServer - send Global Cache-formatted codes via TCP.
* An IR emitter must be connected to GPIO pin 4.
* Version 0.2 May, 2017
* Copyright 2016 Hisham Khalifa, http://www.hishamkhalifa.com
* Copyright 2017 David Conran
*
* Example command - Samsung TV power toggle: 38000,1,1,170,170,20,63,20,63,20,63,20,20,20,20,20,20,20,20,20,20,20,63,20,63,20,63,20,20,20,20,20,20,20,20,20,20,20,20,20,63,20,20,20,20,20,20,20,20,20,20,20,20,20,63,20,20,20,63,20,63,20,63,20,63,20,63,20,63,20,1798\r\n
* For more codes, visit: https://irdb.globalcache.com/
*
* How to use this program:
* 1) Update "ssid" and "password" below for your WIFI network.
* 2) Compile and upload the sketch to your ESP8266 module.
* 3) (Optional) Use the serial connection to confirm it started and get the
* IP address.
* 4) From a client machine, connect to port 4998 on the ESP8266, using
* 'telnet', 'nc' (netcat), 'putty' or similar command, etc.
* You may need to install one.
* Unix/OSX:
* Start a shell. Then type:
* telnet <esp8266deviceIPaddress> 4998
* Windows:
* Start a new CMD window, then type:
* telnet <esp8266deviceIPaddress> 4998
*
* 5) Enter a Global Cache-formatted code, starting at the frequency,
* and then a return/enter at the end. No spaces. e.g.:
*
* 38000,1,1,170,170,20,63,20,63,20,63,20,20,20,20,20,20,20,20,20,20,20,63,20,63,20,63,20,20,20,20,20,20,20,20,20,20,20,20,20,63,20,20,20,20,20,20,20,20,20,20,20,20,20,63,20,20,20,63,20,63,20,63,20,63,20,63,20,63,20,1798
*
* To exit the 'telnet' command:
* press <control> + <]> at the same time, then press 'q', and then <return>.
* or:
* <control> + <d> might work.
*
* This program will display the ESP's IP address on the serial console, or you
* can check your wifi router for it's address.
*/
#ifndef UNIT_TEST
#include <Arduino.h>
#endif
#include <ESP8266WiFi.h>
#include <IRremoteESP8266.h>
#include <IRsend.h>
#include <WiFiClient.h>
#include <WiFiServer.h>
const char* ssid = "..."; // Put your WIFI SSID here.
const char* password = "..."; // Put your WIFI password here.
WiFiServer server(4998); // Uses port 4998.
WiFiClient client;
uint16_t *code_array;
IRsend irsend(4); // An IR LED is controlled by GPIO pin 4 (D2)
void sendGCString(String str) {
int16_t index;
uint16_t count;
// Find out how many items there are in the string.
index = -1;
count = 1;
do {
index = str.indexOf(',', index + 1);
count++;
} while (index != -1);
// Now we know how many there are, allocate the memory to store them all.
code_array = reinterpret_cast<uint16_t*>(malloc(count * sizeof(uint16_t)));
// Check we malloc'ed successfully.
if (code_array == NULL) { // malloc failed, so give up.
Serial.printf("\nCan't allocate %d bytes. (%d bytes free)\n",
count * sizeof(uint16_t), ESP.getFreeHeap());
Serial.println("Giving up & forcing a reboot.");
ESP.restart(); // Reboot.
delay(500); // Wait for the restart to happen.
return; // Should never get here, but just in case.
}
// Now convert the strings to integers and place them in code_array.
count = 0;
uint16_t start_from = 0;
do {
index = str.indexOf(',', start_from);
code_array[count] = str.substring(start_from, index).toInt();
start_from = index + 1;
count++;
} while (index != -1);
#if SEND_GLOBALCACHE
irsend.sendGC(code_array, count); // All done. Send it.
#endif // SEND_GLOBALCACHE
free(code_array); // Free up the memory allocated.
}
void setup() {
// initialize serial:
Serial.begin(115200);
delay(100);
Serial.println(" ");
Serial.println("IR TCP Server");
while (WiFi.status() != WL_CONNECTED) {
delay(900);
Serial.print(".");
}
server.begin();
IPAddress myAddress = WiFi.localIP();
Serial.println(myAddress);
irsend.begin();
}
void loop() {
while (!client)
client = server.available();
while (!client.connected()) {
delay(900);
client = server.available();
}
if (client.available()) {
String ir_code_str = client.readStringUntil('\r'); // Exclusive of \r
client.readStringUntil('\n'); // Skip new line as well
client.flush();
sendGCString(ir_code_str);
}
}