RGB Projector Lamp

myminifactory

For a brand-new and improved version of my own website, visit https://www.designuitinspiratie.nl/rgb-projectorlamp/ The RGB Projector Lamp is a creation that projects figures onto the walls of your room using Red, Green, and Blue light. The lamp's round disk rotates periodically, causing the projections to move as well. To create more dynamic effects, an Arduino switches the LEDs on and off. I've made some videos showcasing this project and shared them on Facebook. Although these platforms aren't ideal for showcasing complex projects like this, I'm planning to create a YouTube channel soon. For now, you can get an idea of how the RGB Lamp works by checking out my unedited videos shot with my smartphone. The RGB Projector Lamp features a RED LED, Green LED, and Blue LED, as well as a stepper driver, 28byj-48 stepper, and an Arduino Nano. This project is designed to be user-friendly, requiring no screws or bolts - everything simply clicks together (note: a transistor like TIP20 and some resistors are also required). I've included the Arduino script I'm currently using for this project. Please see the wiring diagram in the pictures section for more information. The LEDs used are 1W each and have been thermo glued to heat sinks for optimal performance. The Arduino receives power through its USB port. At present, I have designed four different disks - one of which is blank, allowing you to create your own custom design. These disks were printed using a green PLA material with a 0.2mm resolution and a 0.4mm nozzle. The mid (cylinder) part of the lamp was printed using Cura's "spiral outer contour mode." I've also experimented with printing this part in translucent PET-G, but unfortunately, it resulted in a loss of sharpness due to reflections. I've shared some videos on Facebook to give you an idea of how the RGB Projector Lamp works. Please note that these videos are sped up compared to the actual Arduino sketch - normally, it runs at a slower pace. You can view the videos here: https://www.facebook.com/100000611642601/videos/vb.100000611642601/1850079701689067/?type=3 https://www.facebook.com/100000611642601/videos/vb.100000611642601/1850078735022497/?type=3 https://www.facebook.com/100000611642601/videos/vb.100000611642601/1850077891689248/?type=3 https://www.facebook.com/100000611642601/videos/vb.100000611642601/1850076758356028/?type=3 If you think there's a better way to showcase these videos, feel free to suggest it. I'm always open to feedback and questions! Here is the Arduino sketch I use for this project: //RGB Projector Lamp #define IN1 8 //pins for stepper driver #define IN2 9 #define IN3 10 #define IN4 11 int RedLedPin = 2; //red led transistor base to pin 2 int GreenLedPin = 3; //green led transistor base to pin 3 int BlueLedPin = 4; //blue led transistor base to pin 4 int Steps = 0; boolean Direction = true; unsigned long last_time; unsigned long currentMillis ; int steps_left=4095; long time; void setup() { Serial.begin(115200); pinMode(IN1, OUTPUT); pinMode(IN2, OUTPUT); pinMode(IN3, OUTPUT); pinMode(IN4, OUTPUT); pinMode(RedLedPin, OUTPUT); // Set pin for output to control transistor of red led pinMode(GreenLedPin, OUTPUT); // Set pin for output to control control transistor of green led pinMode(BlueLedPin, OUTPUT); // Set pin for output to control control transistor of blue led } void loop() { while(steps_left>0){ currentMillis = micros(); if(currentMillis-last_time>=1000){ stepper(1); time=time+micros()-last_time; last_time=micros(); steps_left--; } } Serial.println(time); Serial.println("Wait :-)"); delay(100000); // change value stop time Direction=!Direction; steps_left=4095; } void stepper(int xw){ for (int x=0;x<12;x++){ Steps++; if(Steps==1){ digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); } else if(Steps==2){ digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); } else if(Steps==3){ digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); } else if(Steps==4){ digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); } else if(Steps==5){ digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); } else if(Steps==6){ digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); } else if(Steps==7){ digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); } else if(Steps==8){ digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); } else if(Steps==9){ digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); } else if(Steps==10){ digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); } else if(Steps==11){ digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); } else if(Steps==12){ digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); } }