Arduino Led Controller

I wanted to make a box to control my led strips. I wanted it to be a hands on experiencie. So no apps!

• 3x - 10kΩ potmeter Standaard
• 1x - Mean Well Power Supply - 5V 10A - Switching Power Supply - LRS-50-5
• 1x - 3 Way Switch On-Off-On - MTS-103
• 3x - WS2813 Digitale 5050 RGB LED Strip - 30 LEDs 1m
• 3x - Button 16mm - On-Off
• 1x - Arduino Uno
• 3x - 10kΩ Resistor
• Soldering Iron & Solder
• Case

I had three led strips I wanted to control. So I chose to have 3 buttons to put them on or off separately, 3 pot meters to change the colours (hue value). One echo sensor so you can change the amount of LEDs lit.

I also have a three way switch. I decided I wanted 3 modes on that switch.

1. Off

2. Fully controllable with the potentiometers and buttons

3. Static colour where the controls where bypassed.

The first things I soldered where the potentiometers than the buttons and the three-way switch and at last the echo sensor. After that, I built in the power supply and my Arduino.

I used a separate power supply even though my led strips where 5v. I had a total of 90 LEDs "pixels" that means I had to power 90 x 3 = 270 led. This used way more ampere than the Arduino could give it.

//library

#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include

//led strips #define NUM_LEDS_PER_STRIP 31

#define LED_TYPE WS2813 #define COLOR_ORDER GRB CRGB eenLeds[NUM_LEDS_PER_STRIP]; CRGB tweeLeds[NUM_LEDS_PER_STRIP]; CRGB drieLeds[NUM_LEDS_PER_STRIP];

//echo sensor const int TRIG_PIN = 12; const int ECHO_PIN = 13; const unsigned int MAX_DIST = 2900;

void setup() { Serial.begin(9600);

//echo sensor // The Trigger pin will tell the sensor to range find pinMode(TRIG_PIN, OUTPUT); digitalWrite(TRIG_PIN, LOW);

// fastled FastLED.addLeds(eenLeds, NUM_LEDS_PER_STRIP); FastLED.addLeds(tweeLeds, NUM_LEDS_PER_STRIP); FastLED.addLeds(drieLeds, NUM_LEDS_PER_STRIP);

//pot pinMode(A0, INPUT); pinMode(A1, INPUT); pinMode(A3, INPUT);

//three way switch pinMode (10, INPUT); pinMode (11, INPUT);

//buttons pinMode (7, INPUT); pinMode (8, INPUT); pinMode (9, INPUT); }

int echosensor() {

unsigned long t1; unsigned long t2; unsigned long pulse_width; float cm; float inches;

// Hold the trigger pin high for at least 10 us digitalWrite(TRIG_PIN, HIGH); delayMicroseconds(10); digitalWrite(TRIG_PIN, LOW);

// Wait for pulse on echo pin while ( digitalRead(ECHO_PIN) == 0 );

// Measure how long the echo pin was held high (pulse width) // Note: the micros() counter will overflow after ~70 min t1 = micros(); while ( digitalRead(ECHO_PIN) == 1); t2 = micros(); pulse_width = t2 - t1;

// Print out results // if ( pulse_width > MAX_DIST ) { // Serial.println("Out of range"); // } else { // Serial.println(pulse_width); // }

// Wait at least 60ms before next measurement delay(60);

int echovalue = map(pulse_width, 200, 1500, 0, NUM_LEDS_PER_STRIP);

// Print out results if ( pulse_width > MAX_DIST || echovalue > 31 ) { return 31; } else { return echovalue; }

}

void loop() {

echosensor();

//three way switch int switchState2 = digitalRead(10); int switchState3 = digitalRead(11);

//functies en iff if (switchState2 == 1) { FastLED.clear (); } else if (switchState2 == 0 && switchState3 == 0) { fill_rainbow( &(eenLeds[0]), 30, 1); fill_rainbow( &(tweeLeds[0]), 30, 1); fill_rainbow( &(drieLeds[0]), 30, 1); } else if (switchState2 == 0 && switchState3 == 1) { ledsControl(); }

FastLED.show(); delay(30);

}

int ledsControl() {

int NumbersOfLeds = echosensor(); Serial.println(NumbersOfLeds);

//potHue1 int valuePotHue1 = analogRead(A1); int hue1 = map(valuePotHue1, 0, 1023, 0, 255);

//potHue2 int valuePotHue2 = analogRead(A0); int hue2 = map(valuePotHue2, 0, 1023, 0, 255);

//potHue3 int valuePotHue3 = analogRead(A2); int hue3 = map(valuePotHue3, 0, 1023, 0, 255);

FastLED.clear();

//button1 int buttonState1 = digitalRead(7);

if (buttonState1 == 1) { fill_solid( eenLeds, NUM_LEDS_PER_STRIP, CHSV(hue1, 255, 0)); } else if (buttonState1 == 0) { for (int led = 0; led < NumbersOfLeds; led++) { fill_solid( eenLeds, led, CHSV(hue1, 255, 155)); } }

//button2 int buttonState2 = digitalRead(8);

if (buttonState2 == 1) { fill_solid( tweeLeds, NUM_LEDS_PER_STRIP, CHSV(hue2, 255, 0)); } else if (buttonState2 == 0) { for (int led = 0; led < NumbersOfLeds; led++) { fill_solid( tweeLeds, led, CHSV(hue2, 255, 155)); } }

//button3 int buttonState3 = digitalRead(9);

if (buttonState3 == 1) { fill_solid( tweeLeds, NUM_LEDS_PER_STRIP, CHSV(hue3, 255, 0)); } else if (buttonState3 == 0) { for (int led = 0; led < NumbersOfLeds; led++) { fill_solid( drieLeds, led, CHSV(hue3, 255, 155)); } } }