Backlit Dimmable LED Mirror with Motion Sensor

[petewill]

@csa02221862

Sorry it has been too long since I made this video and I don't remember the reference. If you're talking about my Arduino that dims three separate lights it's basically just the same wiring except you use 3 different PWM pins to the 3 different MOSFETs. The max wattage is determined by the MOSFET you use.

If that's not what you're referring to, let me know.

[csa02221862]

@petewill Yes that's what I'm talking about. Just wondering how the code was modified to discretely control the 3 zones.

[BulldogLowell]

@csa02221862 said:

@petewill Yes that's what I'm talking about. Just wondering how the code was modified to discretely control the 3 zones.

you want with or without the buttons?

If with, how would the buttons work?

[petewill]

@csa02221862 Sorry for the delayed reply. Busy day yesterday. Here is my code that I'm running in my 1.4.1/1.5 environment.

/***
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 * 
 * DESCRIPTION
 * This sketch provides a Dimmable LED Light using PWM and based Henrik Ekblad 
 * <henrik.ekblad@gmail.com> Vera Arduino Sensor project.  
 * Developed by Bruce Lacey, inspired by Hek's MySensor's example sketches.
 * 
 * The circuit uses a MOSFET for Pulse-Wave-Modulation to dim the attached LED or LED strip.  
 * The MOSFET Gate pin is connected to Arduino pin 3 (LED_PIN), the MOSFET Drain pin is connected
 * to the LED negative terminal and the MOSFET Source pin is connected to ground.  
 *
 * This sketch is extensible to support more than one MOSFET/PWM dimmer per circuit.
 *
 * REVISION HISTORY
 * Version 1.0 - February 15, 2014 - Bruce Lacey
 * Version 1.1 - August 13, 2014 - Converted to 1.4 (hek)
 * Version 1.2 - January 22, 2015 - Created a seperate control for the basement LEDs 
 * Version 1.3 - March 7, 2015 - Added coat closet LED
 *
 ***/
#define SN "Basement LEDs"
#define SV "1.3"

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

#define NODE_ID AUTO //Change to a number to manually assign a node ID

#define MASTER_WINDOW_LED_CHILD 0
#define COAT_CLOSET_LED_CHILD 1
#define UPSTAIRS_RAIL_LED_CHILD 30
#define BASEMENT_DESK_LED_CHILD 40

#define MASTER_WINDOW_LED_PIN 3      // Arduino pin attached to MOSFET Gate pin
#define UPSTAIRS_RAIL_LED_PIN 5
#define BASEMENT_DESK_LED_PIN 6
#define COAT_CLOSET_LED_PIN 9

#define FADE_DELAY 10  // Delay in ms for each percentage fade up/down (10ms = 1s full-range dim)

//MySensor gw;
MySensor gw(4, 10);  //Change CE PIN to free up another PWM pin

static int currentLevelUpstairsRail = 0;
static int currentLevelBasementDesk = 0;
static int currentLevelMasterWinLight = 0;
static int currentLevelCoatCloset = 0;


/***
 * Dimmable LED initialization method
 */
void setup()  
{ 
  Serial.println( SN ); 
  gw.begin( incomingMessage,  NODE_ID);
  
  // Register the LED Dimmable Light with the gateway
  gw.present(UPSTAIRS_RAIL_LED_CHILD, S_DIMMER );
  gw.present(BASEMENT_DESK_LED_CHILD, S_DIMMER ); 
  gw.present(MASTER_WINDOW_LED_CHILD, S_DIMMER );
  gw.present(COAT_CLOSET_LED_CHILD, S_DIMMER );
  
  gw.sendSketchInfo(SN, SV);
}

/***
 *  Dimmable LED main processing loop 
 */
void loop() 
{
  gw.process();
}



void incomingMessage(const MyMessage &message) {
  if (message.type == V_LIGHT || message.type == V_DIMMER) {
    
    //  Retrieve the power or dim level from the incoming request message
    int requestedLevel = atoi( message.data );
    
    // Adjust incoming level if this is a V_LIGHT variable update [0 == off, 1 == on]
    requestedLevel *= ( message.type == V_LIGHT ? 100 : 1 );
    
    // Clip incoming level to valid range of 0 to 100
    requestedLevel = requestedLevel > 100 ? 100 : requestedLevel;
    requestedLevel = requestedLevel < 0   ? 0   : requestedLevel;
    
//    Serial.print( "Changing level to " );
//    Serial.println( requestedLevel );


    //fadeToLevel( requestedLevel );//old code
    fadeToLevel( message.sensor, requestedLevel );
    }
}



void fadeToLevel(int ledChild, int toLevel ) {
//    Serial.print( "In the FadeToLevel method.  ChildID: " );
//    Serial.println( ledChild );

  int currentLevel;
  int ledPin;
  
  if(ledChild == UPSTAIRS_RAIL_LED_CHILD){
    currentLevel = currentLevelUpstairsRail;
    ledPin = UPSTAIRS_RAIL_LED_PIN; 
  }
  else if(ledChild == MASTER_WINDOW_LED_CHILD){
    currentLevel = currentLevelMasterWinLight;
    ledPin = MASTER_WINDOW_LED_PIN;
  }
  else if(ledChild == COAT_CLOSET_LED_CHILD){
    currentLevel = currentLevelCoatCloset;
    ledPin = COAT_CLOSET_LED_PIN;
  }
  else{
    currentLevel = currentLevelBasementDesk;
    ledPin = BASEMENT_DESK_LED_PIN;
  }
  
  int delta = ( toLevel - currentLevel ) < 0 ? -1 : 1;
  
  while ( currentLevel != toLevel ) {
    currentLevel += delta;
    analogWrite(ledPin, (int)(currentLevel / 100. * 255) );
    delay( FADE_DELAY );
//    Serial.println( ledPin );
  }
  
  if(ledChild == UPSTAIRS_RAIL_LED_CHILD){
    currentLevelUpstairsRail = toLevel;
  }
  else if(ledChild == MASTER_WINDOW_LED_CHILD){
    currentLevelMasterWinLight = toLevel;
  }
  else if(ledChild == COAT_CLOSET_LED_CHILD){
    currentLevelCoatCloset = toLevel;
  }
  else{
    currentLevelBasementDesk = toLevel;
  }
    //gw.sendVariable( ledChild, V_LIGHT,  currentLevel > 0 ? 1 : 0 ); 
    //gw.sendVariable( ledChild, V_DIMMER, currentLevel );
    MyMessage dimmerMsg(ledChild,  V_DIMMER);
    gw.send(dimmerMsg.set(currentLevel));
    
  
}```

[csa02221862]

Pete, thanks.

This will work for most situations I need. Is there an option to add the buttons and motion to one or more of the led's?

Hate to bother you again.

Richard

[petewill]

@csa02221862 It should be possible but I never added it. This is in my basement controlling various lights throughout my house so I don't need buttons very often (when I do I just use my phone). The motion sensors are run through a different node and all the logic happens through my controller.

[loralg]

@petewill Thanks for an awesome write up, I just recently ran across it! I am trying to get it working and downloaded the 1.4 library and tried uploading the sketch to my pro mini and got the following error:

Sketch uses 18,642 bytes (130%) of program storage space. Maximum is 14,336 bytes.
Global variables use 633 bytes (61%) of dynamic memory, leaving 391 bytes for local variables. Maximum is 1,024 bytes.
processing.app.debug.RunnerException: Sketch too big; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing it.
at cc.arduino.Compiler.size(Compiler.java:315)
at cc.arduino.Compiler.build(Compiler.java:156)
at processing.app.Sketch.build(Sketch.java:1111)
at processing.app.Sketch.exportApplet(Sketch.java:1146)
at processing.app.Sketch.exportApplet(Sketch.java:1132)
at processing.app.Editor$DefaultExportHandler.run(Editor.java:2409)
at java.lang.Thread.run(Thread.java:745)
Sketch too big; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing it.

Any suggestions on what I might be doing wrong? I am pretty new so I might be overlooking something really simple..

[petewill]

@loralg Are you sure you're choosing the Pro Mini from the Tools > Boards menu? It should have around 32,000 bytes not 14,336.

[mfalkvidd]

@petewill there are atmega168-based pro minis. Using them with MySensors is hard though, because of their small flash size.

[petewill]

@mfalkvidd Good point!

@loralg do you have atmega168 or atmega328 Pro Minis? It should say in tiny print on the chip.

[loralg]

@petewill @mfalkvidd After looking I have the 168.. I already have some more ordered that are the 328 though. I should have looked closer when I ordered the first batch. Thanks for the help! I figured it was probably something simple I had overlooked on my end.