Beispiel: Arduino & LED-Warrior09

[Christoph Jung]

Ein kleines Beispiel, wie man den LED-Warrior09 mit einem Arduino steuern kann:

Code: Select all

//Codemercs used a Arduino/Genuino 101 !

#include <Wire.h>

//Defines: DALI commands (Datasheet page 4)
#define DALI_OFF                0x00
#define DALI_UP                 0x01
#define DALI_DOWN               0x02
#define DALI_STEP_UP            0x03
#define DALI_STEP_DOWN          0x04
#define DALI_MAX                0x05
#define DALI_MIN                0x06
#define DALI_STEP_DOWN_OFF      0x07
#define DALI_ON_STEP_UP         0x08
#define DALI_SCENE              0x10  //0x10 - 0x1F

//Defines: I2C register (Datasheet page 3)
#define REG_STATUS 		0x00
#define REG_CMD 		  0x01
#define REG_CONFIG		0x02
#define REG_I2CADR		0x03

//Defines: DALI constants
#define DALI_MODE_DACP			0x00	//dimm values
#define DALI_MODE_COMMAND		0x01	//commands (MAX, MIN, OFF, etc.)

#define DALI_MAX_SHORT			0x3F	//0...63 -> 64 devices
#define DALI_MAX_GROUP			0x0F	//0...15 -> 16 groups
#define DALI_MAX_SCENE			0x0F	//0...15 -> 16 scenes


//Defines: dafauls I2C address
#define I2C_ADDR    0x20


//Some buttons to execute events
const int btn1 = 12;
const int btn2 = 13;

void setup() 
{
  pinMode(btn1, INPUT);
  pinMode(btn2, INPUT);
  Wire.begin();
}

void loop() 
{
    //Use an input from arduino as button
    if(digitalRead(btn1) == HIGH) 
    {
      SendCommand(0, DALI_MAX);
    }

    //Use an input from arduino as button
    if(digitalRead(btn2) == HIGH)
    {
      SendCommand(0, DALI_MIN);
    }

  delay(100); //Slow down
}

//mode -> 0 = dacp, 1 = command
byte GetShortAddress(int dali_adr, int mode)
{
	//DALI address format: 0 AAA AAA S
	return ((0x00 & ((dali_adr & DALI_MAX_SHORT) << 1)) | mode);
}

//mode -> 0 = dacp, 1 = command
byte GetGroupAddress(int dali_grp, int mode)
{
	//DALI address format: 1 AAA AAA S
	return ((0x80 & ((dali_grp & DALI_MAX_GROUP) << 1)) | mode);
}

//mode -> 0 = dacp, 1 = command
byte GetBroadcastAddress(int mode)
{
	//DALI address format: 1 111 111 S
	return (0x80 | 0x7E | mode);
}

void SendCommand(int dali_adr, int value)
{ 
	//DALI address format: Y AAA AAA S
	byte adr = GetShortAddress(dali_adr, DALI_MODE_COMMAND);

	Wire.beginTransmission(I2C_ADDR);
	Wire.write(REG_CMD);  		//Register: command
	Wire.write(adr);  			//DALI address
	Wire.write((byte)value);  	//Value
	Wire.endTransmission();
}

void SendDACP(int dali_adr, int value)
{
	//DALI address format: Y AAA AAA S
	byte adr = GetShortAddress(dali_adr, DALI_MODE_DACP);

	Wire.beginTransmission(I2C_ADDR);
	Wire.write(REG_CMD);  				//Register: command
	Wire.write(adr);  					//DALI address
	Wire.write((byte)(value & 0xFE));   //Value 0...254 
	Wire.endTransmission();
}