How to get domoticz data to ESP8266??

[DickN]

Hello all,

I like to have a wireless display connected to domoticz.

I have an ESP-1 and a LCD-ic2 display

Are there posibilities in Domoticz to send data to an ESP8266 and display some info like the state of the Domoticz Security Panel or the Temperature?

If there is allready a Topic can you give me the link?

Thanks

[kimot]

I suggest ESPeasy firmware for ESP8266.

Or if you want program something yourself-here is examples for data exchange Domoticz - ESP8266:

https://diyprojects.io/esp8266-web-clie ... -api-json/

https://diyprojects.io/driving-gpio-esp ... -wireless/

[DickN]

Thanks for the info.

These examples shows sending data form ESP to Domoticz.

I want to receive data from Domoticz to show on a LCD display connected to ESP-01

[kimot]

No second example shows how receive HTTP call FROM Domoticz and parse parameters for your usage.

You call

Code: Select all

http://IP_ESP8266/gpio?id=D1&etat=1&token=123abCde

from Domoticz
( IP_ESP8266 is your ESP address )

The example show you how to parse "id", "etat" and "token" values.

In this example for pin number, its status and password, but you can use text for your display instead off or any other stuff.

Code: Select all

void updateGpio(){
  Serial.println("Update GPIO command from DOMOTICZ : ");
  for ( int i = 0 ; i < server.args(); i++ ) {
    Serial.print(server.argName(i)); Serial.println(server.arg(i));
  }
  String gpio = server.arg("id"); 
  String token = server.arg("token");
  if ( token != "123abCde" ) {
    Serial.println("Not authentified ");
    return;
  }
  int etat = server.arg("etat").toInt();
  int pin = D1;
  if ( gpio == "D1" ) {
    pin = D1;
  } else if ( gpio == "D7" ) {
    pin = D7;
  } else if ( gpio == "D8" ) {
    pin = D8;  
  } else {   
    pin = D1;
  }
  Serial.print("Update GPIO "); Serial.println(pin);
  if ( etat == 1 ) {
    digitalWrite(pin, HIGH);
    Serial.println("GPIO updated : On");
  } else if ( etat == 0 ) {
    digitalWrite(pin, LOW);
    Serial.println("GPIO updated : Off");
  } else {
    Serial.println("Bad Led Value !");
  }
}

[MikeF]

A while ago I developed a remote display unit (via WiFi) taking data from Domoticz, using a separate Raspberry Pi (not an ESP8266) and a 20x4 i2c LCD, with code written in Python - see link: https://www.domoticz.com/forum/viewtopi ... 7&start=38
- don't know if this helps (or is transferable to ESP8266).

[kimot]

Like I wrote before - with ESPeasy very easy task:

https://www.letscontrolit.com/wiki/index.php/LCDDisplay

So simply send:

http://<espeasyip>/control?cmd=LCD,<row>,<col>,<text>

http://<espeasyip>/control?cmd=LCD,1,1,Hallo !!!

[DickN]

Like I wrote before - with ESPeasy very easy task:

https://www.letscontrolit.com/wiki/index.php/LCDDisplay

So simply send:

http://<espeasyip>/control?cmd=LCD,<row>,<col>,<text>

http://<espeasyip>/control?cmd=LCD,1,1,Hallo !!!

Yes!!!
This is what I mean.
I Tested it and it works perfect

Thanks