Abdullah Sadiq
Published © GPL3+

RGB Infinity Mirror with 3D Magnetic Sensor

An infinity mirror with an RGB LED strip that can change its color using Infineon's 3D magnetic sensor knob connected to an Arduino MKR1000.

IntermediateFull instructions provided3 hours3,028

Things used in this project

Hardware components

3D Magnetic Sensor 2Go
Infineon 3D Magnetic Sensor 2Go
×1
Arduino MKR1000
Arduino MKR1000
×1
Darlington High Power Transistor
Darlington High Power Transistor
×3
RGB LED Strip
×1
Jumper wires (generic)
Jumper wires (generic)
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

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Schematics

Connection Diagram

Upload the codes to the 3D Magnetic sensor kit and the MKR1000, and connect everything according to this diagram.
Connection diagram hn66ks9wno

Code

3D Magnetic Sensor code

Arduino
Upload this to the 3D Magnetic sensor after installing the board in the Arduino IDE
#include <Tle493d_w2b6.h>
const float pi = (22.0 / 7.0);
bool switchPressed;

Tle493d_w2b6 Tle493dMagnetic3DSensor = Tle493d_w2b6();
void setup() {
  Serial.begin(9600);
  Tle493dMagnetic3DSensor.begin();
  Tle493dMagnetic3DSensor.begin();
}

void loop() {
  Tle493dMagnetic3DSensor.updateData();
  delay(100);
  isSwitchPressed();

  float angle = pi + Tle493dMagnetic3DSensor.getAzimuth();
  angle = (angle * 180.0) / pi;

  if (!switchPressed) {
    Serial.println(angle);
  } else if (switchPressed) {
    //Do here whatever you want to do when the switch is pressed
  }
}

void isSwitchPressed() {
  if (Tle493dMagnetic3DSensor.getNorm() < 55) {
    switchPressed = false;
  }
  else if (Tle493dMagnetic3DSensor.getNorm() > 85) {
    switchPressed = true;
  }
}

Arduino MKR1000 code

Arduino
Upload this code to the Arduino MKR1000, and connect everything according to the connection diagram (after uploading the code to the XMC2Go)
float deg;
int pinRed = 2;
int pinGreen = 3;
int pinBlue = 4;

void setup() {
  Serial.begin(9600);
  Serial1.begin(9600);

  pinMode(pinRed, OUTPUT);
  pinMode(pinGreen, OUTPUT);
  pinMode(pinBlue, OUTPUT);
}

void loop() {
  if (Serial1.available() > 0) {
    deg = Serial1.parseFloat();
    setLedColorHSV(deg, 1, 1);
  }
}

void setLedColorHSV(int h, double s, double v) {
  //this is the algorithm to convert from RGB to HSV
  double r = 0;
  double g = 0;
  double b = 0;

  double hf = h / 60.0;

  int i = (int)floor(h / 60.0);
  double f = h / 60.0 - i;
  double pv = v * (1 - s);
  double qv = v * (1 - s * f);
  double tv = v * (1 - s * (1 - f));

  switch (i) {
    case 0:
      r = v;
      g = tv;
      b = pv;
      break;
    case 1:
      r = qv;
      g = v;
      b = pv;
      break;
    case 2:
      r = pv;
      g = v;
      b = tv;
      break;
    case 3:
      r = pv;
      g = qv;
      b = v;
      break;
    case 4:
      r = tv;
      g = pv;
      b = v;
      break;
    case 5:
      r = v;
      g = pv;
      b = qv;
      break;
  }

  //set each component to a integer value between 0 and 255
  int red = constrain((int)255 * r, 0, 255);
  int green = constrain((int)255 * g, 0, 255);
  int blue = constrain((int)255 * b, 0, 255);

  Serial.print("Red: ");    Serial.print(red);
  Serial.print(" Green: "); Serial.print(green);
  Serial.print(" Blue: ");   Serial.print(blue);
  Serial.println();

  analogWrite(pinRed, red);
  analogWrite(pinGreen, green);
  analogWrite(pinBlue, blue);
}

Credits

Abdullah Sadiq

Abdullah Sadiq

9 projects • 47 followers

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