IKEA Spöke/Spoke(ghost)

[flopp]

I have rebuilt IKEA Spöke(ghost) to be used with MyS and Pro Mini 5V
I replaced LED with 4 pcs WS2812B LED's.
Removed all components on POWER PCB, I only use the PCB to get 5V.
Button is removed.
No battery is used, only power from 5v adapter. To drive nRF I used step-down 5->3.3V
When you solder the Ground pin on the PCB, check carefully from where you take the GND, when the plug is inserted you will NOT get GND from all GND spots/places.
If you will build this think about this/next version:
Use more LED's, maybe 6 or 8. Change in sketch!!
Remove LED on step-down and LED on Pro Mini, will light up alot during night if lamp is off
Add function for button, so you can start it without access to your controller
Add Repeater function, why not it is on power all the time

Video: https://youtu.be/sNSBahc-79s
Link to IKEA Spoke http://www.ikea.com/gb/en/products/childrens-ikea-products/children-3-7/childrens-lighting/spöka-led-night-light-animal-white-turquoise-art-00150985/

I use the color to tell my kids when it is OK to wake up :), sometimes they wake up at 6 am!!. When time is ok to go up from bed it shows green otherwise it shows red/purple light during whole night.

To put the silicon back I forst used a lot of power, then I tried with alcohol it was a piece of cake. The alcohol will vaporize.
This is the sketch

/*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 = 4 ;                  // 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, AUTO, 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();
}

[Yveaux]

@flopp Nice hack!
I also took apart an old Spoka once, but never managed to get the silicon back on... Aparantly you figured it out!

[flopp]

@Yveaux
Thanks. I used alcohol to put the silicone back.
I have add that information in the post