Wall mounted 'mood light'

[AWI]

(there is a sketch for MySensors v2 available)
I received my 110v-230v AC to Mysensors PCB board last week en spent a few hours this weekend making 2 wall mounted mood lights.

I looks a little cheap from the backside but very luxurious on the wall ( < €20 total) and fully "MySensored".

I did not use the relais on the board (and discarded some of the safety measures ). Very basic: a cut WS2812b strip, a few wires.
Case is 12 mm MDF Board painted with Chalk paint (no primer needed, ready in half an hour ;-))

Basic sketch with FastLED library (or Adafruit) with V_RBG.

[TheoL]

Love your project and good use of the wall mount PCB. You showed me that I really need to order a couple of those I'm tired of all the phone charger cables

I couldn't really see it well on the photo's. But did you paint the back of light as well, the MDF part I mean? If not I would do it, because MDF has the tendency to bend when painted on one side only. That's why I use plywood or solid wood for almost all of my projects. Learned it the hard way, I made a cover for my radiator once out of MDF and painted only the outside. In just a day or two the cover started to bend. Which was really not funny after spending two weekends making it.

If you decide to paint the back side as well I'd use a white paint, that reflects the light coming from the ledstrip better. Other colors tend to absorp the light more.

I'm also really curious about how you mounted the MDF to the wall. It looks really great.

[gloob]

Could you please post your Arduino sketch, as I want to build something similar?

Thank you.

[AWI]

@TheoL Thank you for the tips. I painted the board on all sides. I would prefer real wood but MDF is really easy to model and I had a few sq meter left. I hate the dust though. For mounting i used a hook which fits in hole.

[AWI]

@gloob I will post the sketch after cleaning it up. I need to add on/off/ scene button functionality.

I allways try to make my nodes as autonomous as possible. That way i'm not fully controller dependent and it's more safe.

[mvdarend]

@AWI said:

...and discarded some of the safety measures ...

I see you've got something soldered where the fuse should be, but for the rest I can't see what you've left out. Could you tell us which components you eventually ended up using? (or not using, whatever you prefer :))

[AWI]

@mvdarend I have not used the SSR, the varistors and the fuse on the low voltage side...

[AWI]

I have updated the sketch to allow for independent operation and added a few light effects. The sketch can be used for any "Neopixel" (WS2812(B)) LED strip/ stick/ circle. Uses V_RBG and/ or V_STATUS and separate actuators (or the push button with long push) to switch the Pattern and Alarm. A few examples:

"Alarm"

Wall Light fireplace – 00:06
— Ad Imhoff

"Fireplace"
Wall Light Alarm – 00:04
— Ad Imhoff

"Candle light" and "Rainbow" mostly non blocking code. If somebody want to add please do so.

The sketch, heavily commented. Can always be improved

/*
 PROJECT: MySensors / RGB light NEOPIXEL
 PROGRAMMER: AWI
 DATE: october 10, 2015/ last update: october 14, 2015
 FILE: AWI_RGB.ino
 LICENSE: Public domain

 Hardware: Nano and MySensors 1.5, Wall light 16 WS2812B leds (neopixel)
		
 Special:
	uses Fastled library with NeoPixel (great & fast RBG/HSV universal library) 			https://github.com/FastLED/FastLED
	
 SUMMARY:
	
	Different patterns and brightness settings
	
	Button switches on/off and cycles through all Color patterns on long press
	
 Remarks:
	Fixed node-id

*/

#include <MySensor.h>
#include <SPI.h>
#include <FastLED.h>										// https://github.com/FastLED/FastLED
#include <Button.h>											// https://github.com/JChristensen/Button

const int stripPin = 5 ;									// pin where 2812 LED strip is connected
const int buttonPin = 4 ;									// push button
const int numPixel = 16 ;									// set to number of pixels (x top / y bottom)

const int NODE_ID = 62 ;									// fixed MySensors node id
const int RGB_LightChild = 0 ;								// Child Id's, standard light child on/off/ dim
const int RGB_RGBChild = 1 ;								// RGB light child (on/off/dim/color, if controller supports V_RBG))
const int RGB_SolidColorChild = 2 ;							// when set, node reads Color text from ColorTextChild
const int RGB_TextColorChild = 3 ;							// Holds Text value for color (custom colors from controller)
const int RGB_AlarmPatternChild = 4 ;						// Switches to alarm status
const int RGB_NextPatternChild = 5 ;						// Move to next pattern when set

CRGB leds[numPixel];

// Kelving colors: Light & daylight (in Fastled reference only)
/// 1900 Kelvin Candle=0xFF9329 /* 1900 K, 255, 147, 41 */,
/// 2600 Kelvin Tungsten40W=0xFFC58F /* 2600 K, 255, 197, 143 */,
/// 2850 Kelvin Tungsten100W=0xFFD6AA /* 2850 K, 255, 214, 170 */,
/// 3200 Kelvin	Halogen=0xFFF1E0 /* 3200 K, 255, 241, 224 */,
/// 5200 Kelvin CarbonArc=0xFFFAF4 /* 5200 K, 255, 250, 244 */,
/// 5400 Kelvin HighNoonSun=0xFFFFFB /* 5400 K, 255, 255, 251 */,
/// 6000 Kelvin DirectSunlight=0xFFFFFF /* 6000 K, 255, 255, 255 */,
/// 7000 Kelvin OvercastSky=0xC9E2FF /* 7000 K, 201, 226, 255 */,
/// 20000 Kelvin ClearBlueSky=0x409CFF /* 20000 K, 64, 156, 255 */

char controllerRGBvalue[] = "FFDEAD";		 				// Controller sent RGB value, default
uint16_t curBrightness, actualBrightness, controllerRGBbrightness = 0x7F ;	// Brightness globals
unsigned long updateBrightnessDelay, lastBrightnessUpdate ; // Brightness timers
int RGBonoff ;												// OnOff flag

enum { pSolid, pOff, pAlarm, pFire, pFire2, pCandle, pRainbow}  ;	// Pattern globals (stored in int for convenience)
const int lastPatternIdx = pRainbow + 1 ;					// use last pattern for patterncount
int curPattern ;											// current pattern
unsigned long updatePatternDelay, lastPatternUpdate ;		// Pattern timers

unsigned long idleTimer = millis() ;						// return to idle timer
int idleTime = 10000 ;										// return to idle after 10 secs

// initialize MySensors (MySensors 1.5 style)
MyTransportNRF24 transport(9, 10); 							// Ceech board, 3.3v (7,8)  (pin default 9,10)
MySensor gw(transport); 	      			

MyMessage lightRGBMsg(RGB_LightChild,  V_RGB);				// standard messages, light
MyMessage lightdimmerMsG(RGB_LightChild ,V_DIMMER);	
MyMessage lightOnOffMessage(RGB_LightChild, V_STATUS);

Button myBtn(buttonPin, true, true, 20);					//Declare the button (pin, pull_up, invert, debounce_ms)

// Simple state machine for button state
enum {sIdle, sBrightness, sPattern} ;						 // simple state machine for button press
int State ;

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

	gw.begin(incomingMessage, NODE_ID, false);				// initialize MySensors
	gw.sendSketchInfo("AWI RGB Wall 0", "1.0");
	gw.present(RGB_RGBChild, S_RGB_LIGHT, "RGB Wall RGB 0");// present to controller
	gw.present(RGB_LightChild, S_LIGHT, "RGB Wall Light 0");
    gw.present(RGB_SolidColorChild, S_LIGHT, "RGB Set Solid color (text) 0");
	gw.present(RGB_TextColorChild, S_INFO, "RGB Wall textcolor 0");	
	gw.present(RGB_AlarmPatternChild, S_BINARY, "RGB Wall Alarm 0");
	gw.present(RGB_NextPatternChild, S_BINARY, "RGB Wall Pattern 0");
		
	// initialize strip with color and show (strip expects long, so convert from String)
	for(int i = 0 ; i < 6 ; i++) {							// get color value from EEPROM (6 char)
		controllerRGBvalue[i] = gw.loadState(i) ;
		}
	setLightPattern(pSolid, NULL) ;							// default controller Solid 
	FastLED.show();
	State = sIdle ;											// Initial state
	//randomSeed(analogRead(0));
}

// read button and act accordingly
// short press: on/off
// longer press: set patterns with following short press
// long press: set brightness increase 
void loop() {
	gw.process();											// wait for incoming messages
	myBtn.read();               							//Read the button (only read)
	unsigned long now = millis(); 							// loop timer reference
	switch (State) {
		case sIdle:											// default state, browse through patterns
			if (myBtn.wasReleased()){						// light on/ off in idle
				RGBonoff = !RGBonoff ;						// invert light state
				setLightPattern((RGBonoff == 1)?pOff:pSolid, 100);
				gw.send(lightOnOffMessage.set(RGBonoff));	// and update controller	
			} else if (myBtn.pressedFor(500)){				// move to Pattern update state with long press
				idleTimer = now ;							// return to idle after ...
				State = sPattern ;
			}
			break ;
		case sPattern:										// entered after long press
			if (myBtn.pressedFor(2000)){					// when press even longer move to Brightness update
				State = sBrightness ;
			} else if (myBtn.wasPressed()){
				setLightPattern((curPattern + 1) % lastPatternIdx, 500 ); // increase pattern and wrap
				idleTimer = now ;
			} else if ( now > idleTime + idleTimer  ){		// return to idle after ...
				State = sIdle ;
			}
			break ;
		case sBrightness:									// entered after looong press
			if (myBtn.wasPressed()){							// if pressed again increase brightness
				setLightBrightness((curBrightness+1) % 0xFF, 0) ; // increase brightness and wrap (0..0xFF)
				idleTimer = now ;
			} else if ( now > idleTime + idleTimer  ){		// return to idle after ...
				State = sIdle ;
			}
			break ;
		default :
			State = sIdle ;
			break ;
		}
	updateLightBrightness();								// update Brightness if time
	updateLightPattern();									// update Pattern if time
	}

// Sets the light brightness, takes value and time (ms) as input
void setLightBrightness(int newBrightness, unsigned long updateTime){
	// global: curBrightness, actualBrightness, updateBrightnessDelay
	updateBrightnessDelay = updateTime / 0xFF ;				// delay = time / max steps
	actualBrightness = curBrightness ;						// assume curBrightness is actual
	curBrightness = newBrightness ;							// set curBrightness to new value, rest is done in update
	}	
 
// Update the light brightness if time
void updateLightBrightness(){
	// global: curBrightness, actualBrightness, updateBrightnessDelay, lastBrightnessUpdate ;
	unsigned long now = millis() ;
	if (now > lastBrightnessUpdate + updateBrightnessDelay){// check if time for update
		if ( actualBrightness > curBrightness) {
			FastLED.setBrightness( actualBrightness-- );
			FastLED.show();
		} else if ( actualBrightness < curBrightness){
			FastLED.setBrightness( actualBrightness++ );
			FastLED.show();
			}
		lastBrightnessUpdate = now ;
		}
	}

// **** Pattern routines *****
// Sets and initializes the light pattern if nescessary
void setLightPattern( int newPattern, unsigned long updateDelay){
	// global: curPattern, updatePatternDelay
	curPattern = newPattern ;
	updatePatternDelay = updateDelay ;						// delay for next pattern update, can be changed in pattern 
	switch(curPattern){
		case pSolid:										//  solid is controller value in all pixels
			for(int i = 0 ; i < numPixel ; i++) leds[i] = strtol( controllerRGBvalue, NULL, 16);
			FastLED.show();
			break ;
		case pOff:											//  off state all pixels off
			for(int i = 0 ; i < numPixel ; i++) leds[i] = 0 ;
			FastLED.show();
			break ;
		default :
			break ;
			}
	}	

// Update the light pattern when time for it
void updateLightPattern(){
	// global: curPattern, updatePatternDelay, lastPatternUpdate
	unsigned long now = millis() ;
	if (now > lastPatternUpdate + updatePatternDelay){		// check if time for update
		switch (curPattern) {
			case pAlarm:									// flash light
				patternAlarm();
				break ;
			case pFire:										// wild fire
				patternFire();
				break ;
			case pFire2:									// cosy fire
				patternFire2();
				break ;
			case pCandle:									// flame
				patternCandle();
				break ;
			case pRainbow:									// rotating rainbow
				patternRainbow();
				break ;
			case pSolid:									// do nothing fall through
			case pOff:
			default	:										// def	
				break ;
			}
		lastPatternUpdate = now ;
		}
	}

// Define the different patterns
// Alarm - intermittent white and red color, full intensity, intermittent top & bottom half
void patternAlarm() {
    static boolean topBot ;							// indicates direction for next entry
	const CRGB colorTop = CRGB(0xFF, 0, 0 );				// red color
	const CRGB colorBottom = CRGB(0xFF, 0xFF, 0xFF );		// white color
	FastLED.setBrightness(0xFF);							// set the strip brightness
	for(int i=0; i <= (numPixel / 2 - 1) ; i++) {					// for half of strip size
		leds[i] = topBot?colorTop:colorBottom ;	
		leds[i+ (numPixel/2)] = topBot?colorBottom:colorTop ;
		}
	topBot = !topBot ;										// switch direction
	FastLED.show();
	}

// Simulate fire with red color, varying number of leds intensity & tempo
void patternFire() {
    byte numberLeds = random(0,numPixel);					// start number and end of led's for flickering
    byte lum = random(100,255);								// set brightness
    CRGB color = CRGB(200, 50+random(1,180),0 );			// get red color with varying green
    for(int i=0; i <= numberLeds; i++) {
      leds[i] = color ;
      FastLED.setBrightness(lum);							// set the strip brightness
      FastLED.show();
      gw.wait(random(0,10));
    }
    updatePatternDelay = 100 ; 
}

// Simulate fire with red color and varying intensity & tempo
void patternFire2() {
    CRGB color = CRGB(200, random(100,150),0);				// get red color with varying green
    for (byte p=0; p < numPixel; p++) {
      leds[p] = color;
    }
    FastLED.setBrightness(random(50,255));
    FastLED.show();
    updatePatternDelay = random(20,300);					// variable delay
}

// Simulate candle based on fire with red color, varying number of leds intensity & tempo
void patternCandle() {
    byte numberLeds = random(0,numPixel);					// start number and end of led's for flickering
    byte lum = random(60, 80);								// set brightness
    CRGB color = CRGB(200, 50+random(40,100),0 );			// get red color with varying green
    for(int i=0; i <= numberLeds; i++) {
      leds[i] = color ;
      FastLED.setBrightness(lum);							// set the strip brightness
      FastLED.show();
      gw.wait(random(5,10));
    }
    updatePatternDelay = 100 ; 
}


void patternRainbow() {
	static uint16_t hue ;								// starting color
	FastLED.clear();
	// for(hue=10; hue<255*3; hue++) {
	hue = (hue+1) % 0xFF ;									// incerease hue and wrap
	fill_rainbow( leds, numPixel , hue /*static hue value */, 5);// set a rainbow from hue to last in stepsize 5
	FastLED.show();
	updatePatternDelay = 100 ;
	}

// Incoming messages from MySensors
void incomingMessage(const MyMessage &message) {
	int ID = message.sensor;
	Serial.print("Sensor: ");
	Serial.println(ID);
	switch (ID){
		case RGB_LightChild:								// same behaviour as RGB child/ fall through
		case RGB_RGBChild:									// if controller can handle V_RGB
			if (message.type == V_RGB) {					// check for RGB type
				strcpy(controllerRGBvalue, message.getString());// get the payload
				setLightPattern(pSolid, NULL);				// and set solid pattern 
			} else if (message.type == V_DIMMER) {			// if DIMMER type, adjust brightness
				controllerRGBbrightness = map(message.getLong(), 0, 100, 0, 255);
				setLightBrightness(controllerRGBbrightness, 2000) ;
			} else if (message.type == V_STATUS) {			// if on/off type, toggle brightness
				RGBonoff = message.getInt();
				setLightBrightness((RGBonoff == 1)?controllerRGBbrightness:0, 2000);
			}
			break ;
		case RGB_SolidColorChild:							// request color from controller
			if (message.type == V_STATUS) {					// if get color from text child
				gw.request(RGB_TextColorChild, V_TEXT);
				setLightPattern(pSolid, NULL);					// and set solid pattern (if not alre)
				}
			break ;
		case RGB_TextColorChild:							// Text color from controller
			if (message.type == V_TEXT) {					// if get color from text child
				gw.request(RGB_TextColorChild, V_TEXT);
				strcpy(controllerRGBvalue, message.getString());// get the payload
				for(int i = 0 ; i < 6 ; i++) {				// save color value to EEPROM (6 char)
					gw.saveState(i, controllerRGBvalue[i]) ;}// Save to EEPROM
				}
			break ;
		case RGB_AlarmPatternChild:							// set Alarm pattern
			if (message.type == V_STATUS) {					// if get color from text child
				if (message.getInt() == 1){
					setLightPattern(pAlarm, 500);			// set slow alarm pattern
				} else {
					setLightPattern(pSolid, NULL);			// and set solid pattern
					FastLED.setBrightness(curBrightness);
					}
				}
			break ;
		case RGB_NextPatternChild:							// next pattern
			if (message.type == V_STATUS) {					// if get color from text child
				if (message.getInt() == 1 ) {
					setLightPattern((curPattern + 1) % lastPatternIdx, 500 ); // increase pattern and wrap
					}
				}
			break ;
		}
    FastLED.show();
	dispRGBstat();
 	}
// debug	
// display the status of all RGB: controller, requested, real
void dispRGBstat(void){
    Serial.print(" Color: "); Serial.print(controllerRGBvalue); 
    Serial.print(" Brightness: "); Serial.println(controllerRGBbrightness);
	}
	```

[mickaelr30]

hello,
i've problem with the sketch :+1 :

sketch_dec08a.ino: In function 'void setup()':

sketch_dec08a:89: error: 'S_INFO' was not declared in this scope

     gw.present(RGB_TextColorChild, S_INFO, "RGB Wall textcolor 0"); 

                                    ^

sketch_dec08a.ino: In function 'void incomingMessage(const MyMessage&)':

sketch_dec08a:308: error: 'V_TEXT' was not declared in this scope

                 gw.request(RGB_TextColorChild, V_TEXT);

                                                ^

sketch_dec08a:313: error: 'V_TEXT' was not declared in this scope

             if (message.type == V_TEXT) {                   // if get color from text child

                                 ^

exit status 1
'S_INFO' was not declared in this scope

[hek]

S_INFO inly exist in the dev branch.

That also means you have to convert the 1.5 sketch. Convert instructions here:
https://docs.google.com/document/d/1NKq5uuNdnxF5jWnum7VT32mbKLjuvqlx2A5D1qQ-H3Q/edit#

[Adam McCartney]

@mickaelr30 , did you ever get this working with 1.5?

i've got the upgrade instructions, but struggling to reverse it so it works with my current setup. Don't think i'm quite ready to upgrade all my nodes to dev quite yet.

[AWI]

@Adam-McCartney add these lines in the header and you will have it working with the production version...

// V_TEXT & V_INFO when not using the DEVELOPMENT version 
const byte V_TEXT = 47 ;					// values taken from development edition MyMessage.h
const byte S_INFO = 36 ;

[Adam McCartney]

@AWI said:

// V_TEXT & V_INFO when not using the DEVELOPMENT version
const byte V_TEXT = 47 ; // values taken from development edition MyMessage.h
const byte S_INFO = 36 ;

awesome, thanks!

I'm more of a butcher than a surgeon. I can quite happily take things apart, but fixing things usually goes right over my head!!

[Mehdi HAMIDA]

I really love this project.
May I can include it in all of my sensors (doorbell, thermostat, alarm,...).

Really sounds great, thanks

[Mehdi HAMIDA]

Is there a way to get your wiring schema ?

[AWI]

@Mehdi-HAMIDA There is nothing to it. A standard MySensors node (5v) with the strip connected to D5 and a button between ground and D4.

const int stripPin = 5 ;                                    // pin where 2812 LED strip is connected
const int buttonPin = 4 ;                                   // push button

[Mehdi HAMIDA]

@AWI OK, just ordered the PCB
thx

[mfalkvidd]

@AWI: Won't this part of your sketch create sort of an endless loop?

        case RGB_TextColorChild:                            // Text color from controller
            if (message.type == V_TEXT) {                   // if get color from text child
                gw.request(RGB_TextColorChild, V_TEXT);

[AWI]

@mfalkvidd Good observation. Probably the the result of an 'efficient' copy/paste

The line

    gw.request(RGB_TextColorChild, V_TEXT);

I there with no reason, can be deleted...

[Tore André Rosander]

Im building the same light, but i use 12v LED strips controlled with mosfets. Is it possible to use the same scetch?

[AWI]

@Tore-André-Rosander If you use standard 12v strips it won't work as such. The ws2812/11 chips in the strip used make it possible to address the individual led's.

[Tore André Rosander]

@AWI Is this code for version 1.5?
Im trying to compile it for the dev (v2) but i get a lot of errors.
Mostly alot of code that "was not declared in this scope".

EDIT: Just found your link to the "Conversion guide", will have look at it!

[mfalkvidd]

A version for MySensors 2 is available at https://forum.mysensors.org/topic/4934/wall-mounted-mood-light-v2