Hello Everyone, This is my third blog post for the Internet Of Holiday Lighting Road Test, in this post I will explain how did I managed to perform to change the color of RGB led strip with a simple IR Remote. Below is a picture of the setup :
Please watch the demo video it explains more than I can write about it...
HERE IS A DEMO VIDEO :
It is a very simple program, but first you will need to download this library : IRremote
once you do that everything is simple, just decode each button on your remote and make a case for each one of them.
the program simply reads the incoming hex code from your remote, and if the code match then the operation within the code is performed, in this code I have made it to change the color accordingly...
#include <IRremote.h>
#define SL_BD_RT 9600
#define RECV_PIN 7
#define RED 0XF720DF
#define GREEN 0XF7A05F
#define BLUE 0XF7609F
#define WHITE 0XF7E01F
#define CYAN 0XF7B04F
#define PINK 0XF76897
#define YELLOW 0XF728D7
#define ORANGE 0XF710EF
#define TEAL 0XF7A857
#define AQUA 0XF7906F
#define GOLD 0XF708F7
#define PURPLE 0XF748B7
#define OFF 0XF740BF
#define ADDRESS 0x15EUL
#define INTENSITY_RED 0x11U
#define INTENSITY_GREEN 0x12U
#define INTENSITY_BLUE 0x13U
#define INTENSITY_RGB 0x14U
#define CURRENT_RED 0x21U
#define CURRENT_GREEN 0x22U
#define CURRENT_BLUE 0x23U
#define CURRENT_RGB 0x24U
#define OFFTIME_RED 0x41U
#define OFFTIME_GREEN 0x42U
#define OFFTIME_BLUE 0x43U
#define WALKTIME 0x50U
#define DIMMINGLEVEL 0x60U
#define FADERATE 0x61U
#define READ_INTENSITY_RED 0x81U
#define READ_INTENSITY_GREEN 0x82U
#define READ_INTENSITY_BLUE 0x83U
#define READ_CURRENT_RED 0x84U
#define READ_CURRENT_GREEN 0x85U
#define READ_CURRENT_BLUE 0x86U
#define READ_OFFTIME_RED 0x87U
#define READ_OFFTIME_GREEN 0x88U
#define READ_OFFTIME_BLUE 0x89U
#define READ_WALKTIME 0x8AU
#define READ_DIMMINGLEVEL 0x8BU
#define READ_FADERATE 0x8CU
#define SAVEPARAMETERS 0xA0U
#define BCCUMODID 0x50030008U
#define CHIPID 0x40010004U
#define REDINTS 0x500300A0U // BCCU_CH5
#define REDINT 0x500300A4U
#define BLUEINTS 0x50030078U
#define STARTWALK 0x50030018U
#include <Wire.h>
byte ledState;
IRrecv irrecv(RECV_PIN);
decode_results results;
boolean power_state = LOW;
unsigned int c[2] = {0};
unsigned int d[4] = {0};
unsigned int on = 0;
unsigned int message = 0;
unsigned long redcurr = 0;
unsigned long greencurr = 0;
unsigned long bluecurr = 0;
unsigned long redoff = 0;
unsigned long greenoff = 0;
unsigned long blueoff = 0;
unsigned long redint = 0x00;
unsigned long greenint = 0x00;
unsigned long blueint = 0x00;
unsigned long fadetime = 0x00;
unsigned long walk = 0x00;
unsigned long brightness = 1;
void red(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0fff, 0x0, 0x0); // red
delay(100);
}
void green(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0, 0x0fff, 0x0); // red
delay(100);
}
void blue(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0, 0x0, 0x0fff); // red
delay(100);
}
void white(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0fff, 0x0fff, 0x0fff);
delay(100);
}
void purple(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0fff, 0x0, 0x0fff);
delay(100);
}
void yellow(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0fff, 0x0999, 0x0);
delay(100);
}
void cyan(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0, 0x0fff, 0x0fff);
delay(100);
}
void pink(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0fff, 0x0, 0x0888);
delay(100);
}
void teal(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0, 0x0fff, 0x0888);
delay(100);
}
void off(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0, 0x0, 0x0);
delay(100);
}
void orange(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0fff, 0x0333, 0x0);
delay(100);
}
void aqua(){
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0, 0x0999, 0x0fff);
delay(100);
}
void setup() {
Serial.begin(SL_BD_RT);
Wire.begin();
irrecv.enableIRIn();
while (on != 1) // Wait for shield to respond, keep setting the values till it does
{
I2CWRITE2BYTES (ADDRESS, FADERATE, 0x0000); // Immediate fade
I2CWRITE2BYTES (ADDRESS, DIMMINGLEVEL, 0x0000); // 0% brightness level
on = I2CREAD(ADDRESS, READ_DIMMINGLEVEL); // Request for brightness level
if (message == 1 && on == 0) // If message received and dimming level = 0%, "message" is set in the I2CREAD function
{
message = 0;
on = 1; // break out of loop
}
}
// now we will chane the values again and wait till there being red back
while (redcurr != 0x15 || greencurr != 0x15 || bluecurr != 0x15 || redoff != 0x38 || greenoff != 0x39 || blueoff != 0x38 || brightness != 0)
{
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0000, 0x000, 0x0000); // Off Light
// Ensure that parameters are set up correctly. Read back and check. If wrong, write and read again.
redcurr = I2CREAD (ADDRESS, READ_CURRENT_RED); // Read the red current intensity
greencurr = I2CREAD (ADDRESS, READ_CURRENT_GREEN); // Read the green current intensity
bluecurr = I2CREAD (ADDRESS, READ_CURRENT_BLUE); // Read the blue current intensity
redoff = I2CREAD (ADDRESS, READ_OFFTIME_RED); // Read the off-time of the red channel
greenoff = I2CREAD (ADDRESS, READ_OFFTIME_GREEN); // Read the off-time of the green channel
blueoff = I2CREAD (ADDRESS, READ_OFFTIME_BLUE); // Read the off-time of the blue channel
brightness = I2CREAD (ADDRESS, READ_DIMMINGLEVEL); // Read the dimming level
I2CWRITE2BYTES (ADDRESS, OFFTIME_RED, 0x38); // Set off-time of red channel to 0x38
I2CWRITE2BYTES (ADDRESS, OFFTIME_GREEN, 0x39); // Set off-time of green channel to 0x39
I2CWRITE2BYTES (ADDRESS, OFFTIME_BLUE, 0x38); // Set off-time of blue channel to 0x38
I2CWRITE2BYTES (ADDRESS, CURRENT_RED, 0x15); // Set current intensity of red channel to 0x15
I2CWRITE2BYTES (ADDRESS, CURRENT_GREEN, 0x15); // Set current intensity of green channel to 0x15
I2CWRITE2BYTES (ADDRESS, CURRENT_BLUE, 0x15); // Set current intensity of blue channel to 0x15
I2CWRITE2BYTES (ADDRESS, DIMMINGLEVEL, 0x0000); // LEDs all off as any intensity * 0 will = 0
}
delay(100); // OK, so were getting response from the infineon so read back values from slave and print them
Serial.print("Red Int: "); redint = I2CREAD (ADDRESS, READ_INTENSITY_RED); // request from shield red colour intensity
Serial.print("Green Int: "); greenint = I2CREAD (ADDRESS, READ_INTENSITY_GREEN); // request from shield green colour intensity
Serial.print("Blue Int: "); blueint = I2CREAD (ADDRESS, READ_INTENSITY_BLUE); // request from shield blue colour intensity
Serial.print("Red Curr: "); redcurr = I2CREAD (ADDRESS, READ_CURRENT_RED); // request from shield peak current reference of red channel
Serial.print("Green Curr "); greencurr = I2CREAD (ADDRESS, READ_CURRENT_GREEN); // request from shield peak current reference of green channel
Serial.print("Blue Curr: "); bluecurr = I2CREAD (ADDRESS, READ_CURRENT_BLUE); // request from shield peak current reference of blue channel
Serial.print("Red PWM: "); redoff = I2CREAD (ADDRESS, READ_OFFTIME_RED); // request from shield off-time of red channel
Serial.print("Green PWM: "); greenoff = I2CREAD (ADDRESS, READ_OFFTIME_GREEN); // request from shield off-time of green channel
Serial.print("Blue PWM: "); blueoff = I2CREAD (ADDRESS, READ_OFFTIME_BLUE); // request from shield off-time of blue channel
Serial.print("Walk: "); walk = I2CREAD (ADDRESS, READ_WALKTIME); // request from shield walk-time
Serial.print("Brightness: "); brightness = I2CREAD (ADDRESS, READ_DIMMINGLEVEL); // request from shield brightness level
Serial.print("FadeTime: "); fadetime = I2CREAD (ADDRESS, READ_FADERATE); // request from shield fade rate
// now setup for test
I2CWRITE2BYTES (ADDRESS, OFFTIME_RED, 0x38); // Set off-time of red channel to 0x38
I2CWRITE2BYTES (ADDRESS, OFFTIME_GREEN, 0x39); // Set off-time of green channel to 0x39
I2CWRITE2BYTES (ADDRESS, OFFTIME_BLUE, 0x38); // Set off-time of blue channel to 0x38
I2CWRITE6BYTES (ADDRESS, CURRENT_RGB, 0x80, 0x80, 0x80); // Set current of red channel to 0x80 = 780mA
I2CWRITE2BYTES (ADDRESS, FADERATE, 0x0000); // Fade Rate between intensities --> 0.0s
I2CWRITE2BYTES (ADDRESS, WALKTIME, 0x0000); // walk time between colors = 0s
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0555, 0x0555, 0x0555); // low level White Light
I2CWRITE2BYTES (ADDRESS, DIMMINGLEVEL, 0x0FFF); // Maximum dimming level means inensity settings are directly used
I2CWRITE6BYTES (ADDRESS, INTENSITY_RGB, 0x0, 0x0, 0x0);
}
// the loop routine runs over and over again forever:
void loop() {
if (irrecv.decode(&results)) { //If IR receive results are detected
Serial.println(results.value, HEX);
switch (results.value) {
case RED:
red();
break;
case BLUE:
blue();
break;
case GREEN:
green();
break;
case WHITE:
white();
break;
case CYAN:
cyan();
break;
case YELLOW:
yellow();
break;
case PURPLE:
purple();
break;
case AQUA:
aqua();
break;
case OFF:
off();
break;
case ORANGE:
orange();
break;
case PINK:
pink();
break;
case TEAL:
teal();
break;
default:
Serial.println("");
}
delay(20); // 1/5 second delay for arbitrary clicks. Will implement debounce later.
irrecv.resume(); // Receive the next value
}
}
// Infineon functions follow
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
int Command - Defined I2C Commands i.e. INTENSITY_RED, INTENSITY_GREEN, INTENSITY_BLUE
unsigned int Data - 16bit data to be written to slave
Parameters (OUT): None
Return Value: None
Description: This function will write 2 bytes of word to the I2C bus line
*/
void I2CWRITE2BYTES (int Address, int Command, unsigned int Data)
{
unsigned int upperByte, lowerByte; // Separate 4 byte data into 2 byte values
lowerByte = Data;
upperByte = Data >> 8;
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF); // Putting address into correct format
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79; // First 5 bits 11110 and last bit '1' for a write
Wire.beginTransmission(byte(upperSLAD)); // Start I2C transmission
Wire.write(byte(lowerSLAD)); // address lower 8 bits of i2c address
Wire.write(byte(Command)); // write command
Wire.write(byte(upperByte)); // write data
Wire.write(byte(lowerByte));
Wire.endTransmission(true);
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
int Command - Defined I2C Commands i.e. INTENSITY_RGB, CURRENT_RGB
unsigned int DataOne, unsigned int DataTwo, unsigned int DataThree - Three 16bit data to be written to slave
Parameters (OUT): None
Return Value: None
Description: This function will write 6 bytes of word to the I2C bus line
*/
void I2CWRITE6BYTES (unsigned int Address, unsigned int Command, unsigned int DataOne, unsigned int DataTwo, unsigned int DataThree) // DataOne: Red, DataTwo: Green, DataThree: Blue
{
unsigned int upperByte, lowerByte; // Split each Data parameter into upper and lower 8 bytes because I2C format sends 8 bytes of data each time
lowerByte = DataOne;
upperByte = DataOne >> 8;
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF);
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79; // First 5 bits 11110 and last bit '1' for a write
Wire.beginTransmission(byte(upperSLAD)); // Red
Wire.write(byte(lowerSLAD));
Wire.write(byte(Command));
Wire.write(byte(upperByte));
Wire.write(byte(lowerByte));
lowerByte = DataTwo;
upperByte = DataTwo >> 8;
Wire.write(byte(upperByte));
Wire.write(byte(lowerByte));
lowerByte = DataThree;
upperByte = DataThree >> 8;
Wire.write(byte(upperByte));
Wire.write(byte(lowerByte));
Wire.endTransmission(true);
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
int Command - Defined I2C Commands i.e. DMX16Bit
unsigned int DataOne, unsigned int DataTwo, unsigned int DataThree, usigned int DataFour, unsigned int DataFive - Three 16bit data to be written to slave
Parameters (OUT): None
Return Value: None
Description: This function will write 12 bytes of word to the I2C bus line
*/
void I2CWRITE12BYTES (unsigned int Address, unsigned int Command, unsigned int DataOne, unsigned int DataTwo, unsigned int DataThree, unsigned int DataFour, unsigned int DataFive, unsigned int DataSix) // DataOne: Red, DataTwo: Green, DataThree: Blue
{
unsigned int upperByte, lowerByte;
lowerByte = DataOne;
upperByte = DataOne >> 8;
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF);
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79; // First 5 bits 11110 and last bit '1' for a write
Wire.beginTransmission(byte(upperSLAD));
Wire.write(byte(lowerSLAD));
Wire.write(byte(Command)); // write command
Wire.write(byte(upperByte)); // write 2 bytes
Wire.write(byte(lowerByte));
lowerByte = DataTwo;
upperByte = DataTwo >> 8;
Wire.write(byte(upperByte)); // write next two bytes
Wire.write(byte(lowerByte));
lowerByte = DataThree;
upperByte = DataThree >> 8;
Wire.write(byte(upperByte));
Wire.write(byte(lowerByte));
lowerByte = DataFour;
upperByte = DataFour >> 8;
Wire.write(byte(upperByte));
Wire.write(byte(lowerByte));
lowerByte = DataFive;
upperByte = DataFive >> 8;
Wire.write(byte(upperByte));
Wire.write(byte(lowerByte));
lowerByte = DataSix;
upperByte = DataSix >> 8;
Wire.write(byte(upperByte));
Wire.write(byte(lowerByte));
Wire.endTransmission(true);
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
int Command - Defined read I2C Commands i.e. READ_INTENSITY_RED, READ_INTENSITY_GREEN, READ_INTENSITY_BLUE
Parameters (OUT): None
Return Value: Requested data from Shield will be sent back
Description: This function will request 2 bytes of word from the shield
*/
unsigned int I2CREAD (unsigned int Address, unsigned int Command) // Returns data sent by slave
{
int i = 0;
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF);
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79;
Wire.beginTransmission(byte(upperSLAD)); // Red
Wire.write(byte(lowerSLAD));
Wire.write(byte(Command));
Wire.endTransmission(false); // false for Repeated Start
Wire.beginTransmission(byte(upperSLAD));
Wire.write(byte(lowerSLAD));
Wire.requestFrom(upperSLAD, 2, true);
unsigned int data = 0;
while(Wire.available()) // slave may send less than requested. Print out received data byte
{
message = 1;
c[i] = Wire.read(); // receive a byte as character
i++;
}
Wire.endTransmission(true);
data = c[1]; // write data to serial monitor. c[1] is higher byte
data = (data << 8) | c[0]; // shift left and combine with lower byte
Serial.print("0x");
if (data < 0x1000)
Serial.print("0");
Serial.println(data, HEX);
return data;
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
int Command - DIRECTACCESS_READ
Parameters (OUT): None
Return Value: Requested data from the Shield will be returned
Description: This function will request 4 bytes of data from shield.
*/
unsigned long I2CREAD_DIRECTACCESS (unsigned int Address, unsigned int Command, unsigned long registerAddress)
{
int i = 0;
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF); // sending command + address
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79; // First 5 bits 11110 and last bit '1' for a write
Wire.beginTransmission(byte(upperSLAD));
Wire.write(byte(lowerSLAD));
Wire.write(byte(Command));
unsigned int firstByte, secondByte, thirdByte, fourthByte;
firstByte = registerAddress >> 24; // top byte
secondByte = registerAddress >> 16;
thirdByte = registerAddress >> 8;
fourthByte = registerAddress; // bottom byte
Wire.write(byte(firstByte));
Wire.write(byte(secondByte));
Wire.write(byte(thirdByte));
Wire.write(byte(fourthByte));
Wire.endTransmission(false); // false for Repeated Start
Wire.beginTransmission(byte(upperSLAD)); // request for read
Wire.write(byte(lowerSLAD));
Wire.requestFrom(upperSLAD, 4, true);
unsigned long data = 0;
while(Wire.available()) // slave may send less than requested. Print out received data byte
{
d[i] = 0;
d[i] = Wire.read(); // receive a byte as character
i++;
}
Wire.endTransmission(true);
data = d[3]; // combining into one variable. Highest byte received first
data = (data << 8) | d[2];
data = (data << 8) | d[1];
data = (data << 8) | d[0];
Serial.print("0x");
if (data < 0x10000000)
Serial.print("0");
Serial.println(data, HEX);
return data;
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
int Command - Defined I2C Commands i.e. DIRECTACCESS_OR, DIRECTACCESS_AND, DIRECTACCESS_MOVE
unsigned long registerAddress - address of target register
unsigned long Data - 32 bits data to be written to register
Parameters (OUT): None
Return Value: None
Description: This function will write 4 bytes of data to specified register
*/
void I2CWRITE_DIRECTACCESS (unsigned int Address, unsigned int Command, unsigned long registerAddress, unsigned long Data) // For accessing registers directly
{
int i = 0;
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF); // sending command + address
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79; // First 5 bits 11110 and last bit '1' for a write
Wire.beginTransmission(byte(upperSLAD));
Wire.write(byte(lowerSLAD));
Wire.write(byte(Command));
unsigned int firstByte, secondByte, thirdByte, fourthByte; // Send address of register first
firstByte = registerAddress >> 24; // top byte
secondByte = registerAddress >> 16;
thirdByte = registerAddress >> 8;
fourthByte = registerAddress; // bottom byte
Wire.write(byte(firstByte));
Wire.write(byte(secondByte));
Wire.write(byte(thirdByte));
Wire.write(byte(fourthByte));
firstByte = Data >> 24; // top byte
secondByte = Data >> 16;
thirdByte = Data >> 8;
fourthByte = Data; // bottom byte
Wire.write(byte(firstByte)); // send 4 bytes of data
Wire.write(byte(secondByte));
Wire.write(byte(thirdByte));
Wire.write(byte(fourthByte));
Wire.endTransmission(true);
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
unsigned int newAddress - Address the shield should change to
Parameters (OUT): None
Return Value: None
Description: This function will change the I2C address of the slave
*/
void CHANGEADDRESS (unsigned int Address, unsigned int newAddress)
{
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF);
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79; // First 5 bits 11110 and last bit '1' for a write
Wire.beginTransmission(byte(upperSLAD)); // Red
Wire.write(byte(lowerSLAD));
Wire.write(byte(0x70)); // Command to change address
lowerSLAD = (unsigned int) (newAddress & 0x00FF);
upperSLAD = newAddress >> 7; // Split address into 2 bytes
upperSLAD |= 0xF0; // 10 bit addressing: First 5 bits have to be 11110.
upperSLAD &= 0xFE;
Wire.write(byte(upperSLAD));
Wire.write(byte(lowerSLAD));
Wire.endTransmission(true);
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
unsigned int Command - DMXON, DMXOFF
Parameters (OUT): None
Return Value: None
Description: This function will enable or disable DMX512 control on shield
*/
void I2CDMX (unsigned int Address, unsigned int Command) // Switch off / on the DMX
{
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF); // Putting address into correct format
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79;
Wire.beginTransmission(byte(upperSLAD)); // Start I2C transmission
Wire.write(byte(lowerSLAD));
Wire.write(byte(Command));
Wire.endTransmission(true);
}
/*
Parameters (IN): int Address - Address of RGB LED Shield, Default 0x15E
Parameters (OUT): None
Return Value: None
Description: This function will request the shield to save configurations to flash memory
*/
void I2CSAVEPARAM (unsigned int Address)
{
int i = 0;
unsigned int lowerSLAD = (unsigned int) (Address & 0x00FF);
unsigned int upperSLAD = Address >> 8;
upperSLAD |= 0x79;
Wire.beginTransmission(byte(upperSLAD));
Wire.write(byte(lowerSLAD));
Wire.write(byte(SAVEPARAMETERS)); // write SAVEPARAMETERS command
Wire.endTransmission(false); // false for Repeated Start
Wire.beginTransmission(byte(upperSLAD));
Wire.write(byte(lowerSLAD)); // write to address lower 8 bits of slave address
Wire.requestFrom(upperSLAD, 2, true); // send READ request with upper slave address
unsigned int data = 0;
while(Wire.available()) // slave may send less than requested. Print out received data byte
{
message = 1;
c[i] = Wire.read(); // receive a byte as character
i++;
}
Wire.endTransmission(true); // STOP condition
data = c[1]; // print the data on serial monitor
data = (data << 8) | c[0];
Serial.print("0x");
if (data < 0x1000)
Serial.print("0");
Serial.println(data, HEX);
}
In my next blog post i will write about my final "True IoT" method for my smart phone lighting project....
I know this this post is not related to smartphone lighting, but as I wrote it in my application for this roadtest, so i did it...