💬 OH MySensors RGBW Controller

hek

Nope, you have to press the refresh button in the github-tab.

Cliff Karlsson

Great, just one stupid question. Do I just upload the gbl file to dirtypcbs/oshpark or how does it work?

LastSamurai

Great, just one stupid question. Do I just upload the gbl file to dirtypcbs/oshpark or how does it work?

You take a zip file with all the gerber files inside (I think I already put one into the git), test it online (if you want to; sometimes it doesnt look perfect here) and then you upload it to dirtypcbs. I don't know how oshpark works, but I guess similar.

Online gerber viewers I use are:
http://circuitpeople.com/
http://mayhewlabs.com/3dpcb

Edit: I did just fix the files, you should be able to just use the RGBWController-Gerber.zip from the github (I will try to update the openhardware.io page now)

Cliff Karlsson

What is the correct pitch for the screw terminals? 2.54mm? 5mm ? or other?

LastSamurai

@Cliff-Karlsson It should be 5 mm

Achim

dirtypcb says that the outline files are missing
No board outline (.GML/.GKO/.GBR) file found.
Can you please add this outline files to the GIT.

Cliff Karlsson

I had the same problem with dirtypcbs so I ordered from seedstudio instead. Almost the same price.

LastSamurai

Oh thats just a naming issue. Rename the "RGBWController-Edge.cuts.gm1" to .gml in the zip file and it should work just fine.

peerkersezuuker

Just got the v1.3 pcb's from OSH Park, just waiting for some components, and the we go. It will be an exciting christmas ;-)

Jan Gatzke

I got my v1.3 pcbs from Smart Prototyping. Quality is good. The controller works fine BUT the sketch version in your github repo is broken. Seems like the non linear fading part never got finished. I am now using linear fading and the sketch is working. :)

peerkersezuuker

@Jan-Gatzke
Hi can you please post your adjusted sketch for further reference?

Jan Gatzke

@peerkersezuuker

You have to fix the following part:

for (int i = 0; i < NUM_CHANNELS; i++) {
    if (isOn) {
      // normal fading
      //analogWrite(channels[i], dimming / 100.0 * values[i]);

      // non linear fading, idea from https://diarmuid.ie/blog/pwm-exponential-led-fading-on-arduino-or-other-platforms/
      analogWrite(channels[i], pow (2, (dimming / R)) - 1);
    } else {
      analogWrite(channels[i], 0);
    }
  }

Corrected Version

for (int i = 0; i < NUM_CHANNELS; i++) {
    if (isOn) {
      // normal fading
      analogWrite(channels[i], dimming / 100.0 * values[i]);

      // non linear fading, idea from https://diarmuid.ie/blog/pwm-exponential-led-fading-on-arduino-or-other-platforms/
      //analogWrite(channels[i], pow (2, (dimming / R)) - 1);
    } else {
      analogWrite(channels[i], 0);
    }
  }

Or else all channels are set to the Value of dimming. The sketch on openhardware.io is broken, too.

peerkersezuuker

@Jan-Gatzke
Thank you for your post.
I hope the Mosfet's are comming in today, then i can build it up and play with it.

LastSamurai

@Jan-Gatzke Thank you for correcting it ;) I never got around to making the fading part work a 100% so I reverted back to my normal linear fading for my controllers. Seems like I forgot to correct that in my git repo :frowning: Sorry for that, I will fix it after christmas.
Great to hear that others are using the controllers too! Have fun with them and update me if you change something or build some (other) cool thing with them!

peerkersezuuker

A little question, the v1.3 is this the one with the corrected mosfet placement ?
I build and programmed one now, but i only get a bright white light, and no response when i switch the node. So now i am in doubt...

With regards
Peer

Jan Gatzke

@peerkersezuuker

The node always starts with white on. This is normal behaviour.

peerkersezuuker

@Jan-Gatzke
Thank you, i see it in the code now ...
I tested it with setting the RGB levels one by one to 255, and this works, so the channels are responding to the initialisation code.
And because it is rebuild to version 2.0, i forgot one void to adjust...
void incomingMessage(
should be
void receive(

Problem solved, thank you very much.
With regards
Peer van Hoek

Jan Gatzke

@peerkersezuuker

Great.Can you post the complete 2.0 sketch, please? I am going to upgrade and this would be a good starting point.

peerkersezuuker

@Jan-Gatzke
Sure, no problem.
But it is not 100% clean, i am just a coppier and paste'r....
If you can clean it up that would be nice.

/**
Based on the MySensors Project: http://www.mysensors.org

This sketch controls a (analog)RGBW strip by listening to new color values from a (domoticz) controller and then fading to the new color.

Version 1.0 - Changed pins and gw definition
Version 0.9 - Oliver Hilsky

TODO
safe/request values after restart/loss of connection
*/
#define MY_DEBUG 

#define SN   "RGBW 01"
#define SV   "1.0"
#define MY_RADIO_NRF24
// change the pins to free up the pwm pin for led control
#define MY_RF24_CE_PIN 4 //<-- NOTE!!! changed, the default is 9
#define MY_RF24_CS_PIN 10 // default is 10
#define MY_RF24_PA_LEVEL RF24_PA_MAX
#define MY_REPEATER_FEATURE
#define MY_NODE_ID 6


// Load mysensors library	
#include <MySensors.h>	
// Load Serial Peripheral Interface library  
#include <SPI.h>

// Arduino pin attached to driver pins
#define RED_PIN 3 
#define WHITE_PIN 9
#define GREEN_PIN 5
#define BLUE_PIN 6
#define NUM_CHANNELS 4 // how many channels, RGBW=4 RGB=3...
#define CHILD_ID 1

// Smooth stepping between the values
#define STEP 1
#define INTERVAL 10
const int pwmIntervals = 255;
float R; // equation for dimming curve

// Stores the current color settings
byte channels[4] = {RED_PIN, GREEN_PIN, BLUE_PIN, WHITE_PIN};
byte values[4] = {0, 0, 0, 255};
byte target_values[4] = {0, 0, 0, 255}; 


// stores dimming level
byte dimming = 100;
byte target_dimming = 100;

// tracks if the strip should be on of off
boolean isOn = true;

// time tracking for updates
unsigned long lastupdate = millis();
     
void setup() 
{
  // Initializes the sensor node (with callback function for incoming messages)
  //begin(incomingMessage);	// 123 = node id for testing	
       
  // Set all channels to output (pin number, type)
  for (int i = 0; i < NUM_CHANNELS; i++) {
    pinMode(channels[i], OUTPUT);
  }

  // set up dimming
  R = (pwmIntervals * log10(2))/(log10(255));

  // get old values if this is just a restart
  request(CHILD_ID, V_RGBW);

  // init lights
  updateLights();
  
  // debug
  if (isOn) {
    Serial.println("RGBW is running...");
  }
 
  Serial.println("Waiting for messages...");  
}

void presentation()  {
  // Send the sketch version information to the gateway and Controller
  sendSketchInfo(SN, SV);

  // Register this device as Waterflow sensor
  present(CHILD_ID, S_RGBW_LIGHT, SN, true);
}

void loop()
{
  // Process incoming messages (like config and light state from controller) - basically keep the mysensors protocol running
//  process();		

  // and set the new light colors
  if (millis() > lastupdate + INTERVAL) {
    updateLights();
    lastupdate = millis();
  } 
}

// callback function for incoming messages
void receive(const MyMessage &message) {

  Serial.print("Got a message - ");
  Serial.print("Messagetype is: ");
  Serial.println(message.type);

  // acknoledgment
  if (message.isAck())
  {
   	Serial.println("Got ack from gateway");
  }
  
  // new dim level
  else if (message.type == V_DIMMER) {
      Serial.println("Dimming to ");
      Serial.println(message.getString());
      target_dimming = message.getByte();

      // a new dimmer value also means on, no seperate signal gets send (by domoticz)
    isOn = true;
  }

  // on / off message
  else if (message.type == V_STATUS) {
    Serial.print("Turning light ");

    isOn = message.getInt();

    if (isOn) {
      Serial.println("on");
    } else {
      Serial.println("off");
    }
  }

  // new color value
  else if (message.type == V_RGBW) {    
    const char * rgbvalues = message.getString();
    inputToRGBW(rgbvalues);  

    // a new color also means on, no seperate signal gets send (by domoticz); needed e.g. for groups
    isOn = true;  
  }  
}

// this gets called every INTERVAL milliseconds and updates the current pwm levels for all colors
void updateLights() {  

  // update pin values -debug
  //Serial.println(greenval);
  //Serial.println(redval);
  //Serial.println(blueval);
  //Serial.println(whiteval);

  //Serial.println(target_greenval);
  //Serial.println(target_redval);
  //Serial.println(target_blueval);
  //Serial.println(target_whiteval);
  //Serial.println("+++++++++++++++");

  // for each color
  for (int v = 0; v < NUM_CHANNELS; v++) {

    if (values[v] < target_values[v]) {
      values[v] += STEP;
      if (values[v] > target_values[v]) {
        values[v] = target_values[v];
      }
    }

    if (values[v] > target_values[v]) {
      values[v] -= STEP;
      if (values[v] < target_values[v]) {
        values[v] = target_values[v];
      }
    }
  }

  // dimming
  if (dimming < target_dimming) {
    dimming += STEP;
    if (dimming > target_dimming) {
      dimming = target_dimming;
    }
  }
  if (dimming > target_dimming) {
    dimming -= STEP;
    if (dimming < target_dimming) {
      dimming = target_dimming;
    }
  }

  /*
  // debug - new values
  Serial.println(greenval);
  Serial.println(redval);
  Serial.println(blueval);
  Serial.println(whiteval);

  Serial.println(target_greenval);
  Serial.println(target_redval);
  Serial.println(target_blueval);
  Serial.println(target_whiteval);
  Serial.println("+++++++++++++++");
  */

  // set actual pin values
  for (int i = 0; i < NUM_CHANNELS; i++) {
    if (isOn) {
      // normal fading
      analogWrite(channels[i], dimming / 100.0 * values[i]);

      // non linear fading, idea from https://diarmuid.ie/blog/pwm-exponential-led-fading-on-arduino-or-other-platforms/
      //analogWrite(channels[i], pow (2, (dimming / R)) - 1);
    } else {
      analogWrite(channels[i], 0);
    }
  }
}

// converts incoming color string to actual (int) values
// ATTENTION this currently does nearly no checks, so the format needs to be exactly like domoticz sends the strings
void inputToRGBW(const char * input) {
  Serial.print("Got color value of length: "); 
  Serial.println(strlen(input));
  
  if (strlen(input) == 6) {
    Serial.println("new rgb value");
    target_values[0] = fromhex (& input [0]);
    target_values[1] = fromhex (& input [2]);
    target_values[2] = fromhex (& input [4]);
    target_values[3] = 0;
  } else if (strlen(input) == 9) {
    Serial.println("new rgbw value");
    target_values[0] = fromhex (& input [1]); // ignore # as first sign
    target_values[1] = fromhex (& input [3]);
    target_values[2] = fromhex (& input [5]);
    target_values[3] = fromhex (& input [7]);
  } else {
    Serial.println("Wrong length of input");
  }  


  Serial.print("New color values: ");
  Serial.println(input);
  
  for (int i = 0; i < NUM_CHANNELS; i++) {
    Serial.print(target_values[i]);
    Serial.print(", ");
  }
 
  Serial.println("");
  Serial.print("Dimming: ");
  Serial.println(dimming);
}

// converts hex char to byte
byte fromhex (const char * str)
{
  char c = str [0] - '0';
  if (c > 9)
    c -= 7;
  int result = c;
  c = str [1] - '0';
  if (c > 9)
    c -= 7;
  return (result << 4) | c;
}```

Jan Gatzke

@peerkersezuuker

If I find the time, I will clean it up. I want to have a look at the non linear fading. IMHO the initial settings need to be customized, too. Instead of switching the white LEDs on the node could request the values from the controller (if possible) or from eeprom.

💬 OH MySensors RGBW Controller

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