Creating a RGB selector and adding it to Domoticz

[mfalkvidd]

I have created a node which has an RGB selector. I want to send the selected value to Domoticz whenever the selection is changed. The value should then be used to control one or more other nodes with RGB leds.

I have setup the RGB selector with gw.present(0, S_RGB_LIGHT, "RGB"). When sending the first selected value, a new device was available in Domoticz. I added the Device in Domoticz and it shows as a Type=Lighting Limitless/Applamp and Subtype=RGB.

When the messages are sent, the serial debug log on the selector looks like this:

send: 6-6-0-0 s=0,c=1,t=40,pt=0,l=6,sg=0,st=ok:f8c0ff
send: 6-6-0-0 s=0,c=1,t=40,pt=0,l=6,sg=0,st=ok:fafdff

The Domoticz log looks like this:

2016-01-29 22:37:40	On
2016-01-29 22:37:23	Off
2016-01-29 22:37:22	On
2016-01-29 22:37:16	Off
2016-01-29 22:37:16	Off
2016-01-29 22:37:15	Off
2016-01-29 22:37:06	On
2016-01-29 22:37:05	On

I don't want On/Off, I want the RGB hexstring that was sent. Does anyone know what I'm doing wrong?

I'm not sure if the problem is with the MySensors code or the Domoticz configuration. I am using Domoticz 2.3530

[sundberg84]

Said it before - coding isnt my strong side but looking at the code in parseline() it looks like it doesnt do anything in Domoticz...
https://github.com/domoticz/domoticz/blob/master/hardware/MySensorsBase.cpp#L1844
In the other hand the case S_RGBW_LIGHT: (a bit below) seem to be coded...

What du you think?

Edit: Nah, see now in the code below that V_RGB is used... and also V_RGBW as well.

[mfalkvidd]

Thanks! Great idea to look at the Domoticz source.
There is no break; after S_RGB_LIGHT, so the execution will continue with S_COLOR_SENSOR so Domoticz seems to handle RGB_LIGHT and COLOR_SENSOR exactly the same. That should be fine I think. I'll continue digging through the code.

[mfalkvidd]

Looks like I need to upgrade to the Domoticz beta https://www.domoticz.com/forum/viewtopic.php?f=42&t=8039

[flopp]

This is the code i am using and it is working fine with MyS 1.5.1 and Domoticz 3.5877.

/*PROJECT: MySensors / RGB test for Light & Sensor
 PROGRAMMER: AWI/GizMoCuz
 DATE: september 27, 2015/ last update: October 10, 2015
 FILE: AWI_RGB.ino
 LICENSE: Public domain

 Hardware: Nano and MySensors 1.5
    
 Special:
  uses Fastled library with NeoPixel (great & fast RBG/HSV universal library)       https://github.com/FastLED/FastLED
 
 Remarks:
  Fixed node-id
  Added option to request/apply last light state from gateway
  
 Domoticz typicals - 2015 10 10:
  - Domoticz is using HUE values internally, there might be a slight difference then using direct RGB colors.
*/

#include <MySensor.h>
#include <SPI.h>
#include <FastLED.h>


const int stripPin = 4 ;                  // pin where 2812 LED strip is connected

const int numPixel = 3 ;                  // set to number of pixels

#define NODE_ID 254                       // fixed MySensors node id

#define CHILD_ID 0                  // Child Id's

CRGB leds[numPixel];

char actRGBvalue[] = "000000";               // Current RGB value
uint16_t actRGBbrightness = 0xFF ;         // Controller Brightness 
int actRGBonoff=0;                        // OnOff flag

MySensor gw;

MyMessage lastColorStatusMsg(CHILD_ID,V_VAR1);

void setup() {
  FastLED.addLeds<NEOPIXEL, stripPin >(leds, numPixel); // initialize led strip

  gw.begin(incomingMessage, NODE_ID, false);      // initialize MySensors
  gw.sendSketchInfo("AWI RGB Light", "1.1");
  gw.present(CHILD_ID, S_RGB_LIGHT);        // present to controller

  // Flash the "hello" color sequence: R, G, B, black. 
  colorBars();

  //Request the last stored colors settings
  gw.request(CHILD_ID, V_VAR1);
}

void loop() {
  gw.process();                       // wait for incoming messages
}

void colorBars()
{
  SendColor2AllLEDs( CRGB::Red );   FastLED.show(); delay(500);
  SendColor2AllLEDs( CRGB::Green ); FastLED.show(); delay(500);
  SendColor2AllLEDs( CRGB::Blue );  FastLED.show(); delay(500);
  SendColor2AllLEDs( CRGB::Black ); FastLED.show(); delay(500);
} 

void SendColor2AllLEDs(const CRGB lcolor)
{
  for(int i = 0 ; i < numPixel ; i++) {
    leds[i] = lcolor;
  }
}

void SendLastColorStatus()
{
  String cStatus=actRGBvalue+String("&")+String(actRGBbrightness)+String("&")+String(actRGBonoff);
  gw.send(lastColorStatusMsg.set(cStatus.c_str()));
}

String getValue(String data, char separator, int index)
{
 int found = 0;
  int strIndex[] = {0, -1};
  int maxIndex = data.length()-1;
  for(int i=0; i<=maxIndex && found<=index; i++){
  if(data.charAt(i)==separator || i==maxIndex){
  found++;
  strIndex[0] = strIndex[1]+1;
  strIndex[1] = (i == maxIndex) ? i+1 : i;
  }
 }
  return found>index ? data.substring(strIndex[0], strIndex[1]) : "";
}

void incomingMessage(const MyMessage &message) {
  if (message.type == V_RGB) {            // check for RGB type
    actRGBonoff=1;
    strcpy(actRGBvalue, message.getString());    // get the payload
    SendColor2AllLEDs(strtol(actRGBvalue, NULL, 16));
    SendLastColorStatus();
  }
  else if (message.type == V_DIMMER) {           // if DIMMER type, adjust brightness
    actRGBonoff=1;
    actRGBbrightness = map(message.getLong(), 0, 100, 0, 255);
    FastLED.setBrightness( actRGBbrightness );
    SendLastColorStatus();
  }
  else if (message.type == V_STATUS) {           // if on/off type, toggle brightness
    actRGBonoff = message.getInt();
    FastLED.setBrightness((actRGBonoff == 1)?actRGBbrightness:0);
    SendLastColorStatus();
  }
  else if (message.type==V_VAR1) {            // color status
    String szMessage=message.getString();
    strcpy(actRGBvalue, getValue(szMessage,'&',0).c_str());
    actRGBbrightness=atoi(getValue(szMessage,'&',1).c_str());
    actRGBonoff=atoi(getValue(szMessage,'&',2).c_str());
    SendColor2AllLEDs(strtol(actRGBvalue, NULL, 16));
    FastLED.setBrightness((actRGBonoff == 1)?actRGBbrightness:0);
  }
  FastLED.show();
}

When you get the RGB Light in Device, add it and edit the Device to be a Dimmer instead then click on the three cubes and start to select the color you like