Random Stuff We Make!
Published © GPL3+

Gesture Controlled Interactive Table Light

A simple gesture-controlled interactive table light, which can encourage kids towards making.

BeginnerFull instructions provided1 hour13,235

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
SmartElex RLS-08 Analog & Digital Line Sensor Array
×1
Jumper wires (generic)
Jumper wires (generic)
×1
LED Strip, NeoPixel Digital RGB
LED Strip, NeoPixel Digital RGB
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Hot glue gun (generic)
Hot glue gun (generic)

Story

Read more

Schematics

Fritzing circuit

The circuit in fritzing is made with 8 different IR sensors, you can either use 8 different sensors or one array sensor.

Code

Gesture Controlled Table light

Arduino
This code is complete, you can change the number of LEDs & Pin no. according to your setup. For the explanation of code check the story part of the article.
#include <FastLED.h> //LED library initialization
int a,b,c,d,e,f,g,h,j=0; //Variables to store Sensor data

#define NUM_LEDS 90 // How many leds in your strip?
#define DATA_PIN 3 // Data pin of LED will be connected here on arduino

// Define the array of leds
CRGB leds[NUM_LEDS];

void setup() { 
  pinMode(4,INPUT); //Digital Input Pin for IR sensor
  pinMode(5,INPUT); //Digital Input Pin for IR sensor
  pinMode(6,INPUT); //Digital Input Pin for IR sensor
  pinMode(7,INPUT); //Digital Input Pin for IR sensor
  pinMode(8,INPUT); //Digital Input Pin for IR sensor
  pinMode(9,INPUT); //Digital Input Pin for IR sensor
  pinMode(10,INPUT);//Digital Input Pin for IR sensor
  pinMode(11,INPUT);//Digital Input Pin for IR sensor
  
  LEDS.addLeds<WS2812,DATA_PIN,RGB>(leds,NUM_LEDS); //LED initialization
  LEDS.setBrightness(84); // Brightness of LED (0-255 range)
}

void fadeall() { for(int i = 0; i < NUM_LEDS; i++) { leds[i].nscale8(250); } } //Function for Fading Effect

void loop() { 
  a=digitalRead(4); //Read input from sensor A
  b=digitalRead(5); //Read input from sensor B
  c=digitalRead(6); //Read input from sensor C
  d=digitalRead(7); //Read input from sensor D
  e=digitalRead(8); //Read input from sensor E
  f=digitalRead(9); //Read input from sensor F
  g=digitalRead(10);//Read input from sensor G
  h=digitalRead(11);//Read input from sensor H
  
  static uint8_t hue = 0; // Variable 8 bit
 
  // First slide the led in one direction
  if(a==1)
  {
    if(b==1)
    {
  for(int i = 4; i < 55; i++) {
    // Set the i'th led to red 
    leds[i] = CHSV(hue++, 255, 255);
    // Show the leds
    FastLED.show(); 
    // now that we've shown the leds, reset the i'th led to black
    // leds[i] = CRGB::Black;
    fadeall();
    // Wait a little bit before we loop around and do it again
    delay(10);
                              }
    }
  }

  if(g==1)
{
  if(f==1)
  {
  // Now go in the other direction.  
  for(int i = (56)-1; i >= 4; i--) {
    // Set the i'th led to red 
    leds[i] = CHSV(hue++, 255, 255);
    // Show the leds
    FastLED.show();
    // now that we've shown the leds, reset the i'th led to black
    // leds[i] = CRGB::Black;
    fadeall();
    // Wait a little bit before we loop around and do it again
    delay(10);
                                   }
  }
}
          }

Credits

Random Stuff We Make!
17 projects • 65 followers
We at RSWM! try to bring Fiction to Reality through projects which are Interactive, Creative & way too simpler in terms of making.
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Related channels and tags
  • Arduino
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  • Home Automation
  • Sensors
  • Sensors