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README.md

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+# K-Pop Lightstick
+This Repo features the software of an Arduino Lightstick as well as the 3D Files for a custom **NCT DREAM** Lightstick
+
+![Alt text](/pictures/lightstick_top3d.png)
+
+## 3D-Print
+The Lightstick was printed in 3 different colors.
+
+The `Block Top.stl` file can be modified to not come with holes for the `Neo_City.stl` cubes rising out of the top to match the official lightstick more accurately.
+
+*Be aware, that this 3D Build is slightly larger than the Official NCT DREAM Lightstick and you may not be allowed into concerts with it. I had no issues at the NCT DREAM Tour 2024 in Rotterdam but the security checks at the entrance were cursory, lacking the thoroughness you would usually have at different concerts.*
+
+**WHITE:**
+- `Block Base.stl`
+- `Block Side.stl`
+- `Block Top.stl`
+- `Handle Base Bottom.stl`
+- `Handle Base.stl`
+
+**BLACK:**
+- `Handle Ring Bottom`
+- `Handle Ring Top`
+- `Power Button`
+
+**TRANSPARENT NEON GREEN:**
+- `Neo_City.stl`
+- `shiny_c_thicker.stl`
+- `shiny_c.stl`
+- `shiny_n_thicker.stl`
+- `shiny_n.stl`
+- `shiny_t_thicker.stl`
+- `shiny_t.stl`
+
+## Assembly
+The Assembly of the Prints is pretty self-explanatory. Take a look at the pictures in the `/picture` folder of the repo.
+
+I chose to not glue the `Block Base.stl` and the `Handle Base.stl` pieces together to be able to troubleshoot/replace the electronics inside at any time.
+
+## Electronics
+The `arduino.ino` file contains the Arduino code I used for the lightstick.
+
+An **Arduino Nano** was used with the following Pin-Out:
+```cpp
+const int buttonPin = 2; // Pin for the button
+const int redPin = 11; // Pin for the red channel of RGB LED
+const int greenPin = 10; // Pin for the green channel of RGB LED
+const int bluePin = 9; // Pin for the blue channel of RGB LED
+const int motorPin = 8; // Pin to control the motor
+```
+*Note: These are the Digital Pins on the Arduino Nano*
+
+### Features of the Program
+- The `buttonPin` is for the Power Button on the `Handle Base.stl` and is used for controlling the Light.
+- The `redPin`, `greenPin` and `bluePin` are used for controlling the LED. IMPORTANT: These are **ANODE RGB LEDs**. If You plan on using *Kathode LEDs*, simply remove `255 - ` from the `setRGB` function at the bottom of the Program, to invert the values. (This is only a fix based on logic, I have no LEDs to test it)
+- The `motorPin` is used for controlling a simple Vibration Motor that runs for 1 second when turning on the Lightstick. This is inspired from the *VIXX Official Lightstick* that has similar behaviour. It is completely irrelevant to the general functionality of the Lightstick which is, well, to have Light.
+
+### Instructions
+1. Connect a Power button to the Arduino `buttonPin` and groud
+2. Connect the Vibration Motor (A simple motor with some weight glued of axis to make it vibrate when rotating) to the `motorPin` and ground
+3. Connect the RGB LEDs to the 3 color pins and 3.3V
+4. Glue together 3 AAA Batteries, solder them together and connect them to the Voltage In` and ground
+5. Flash the Arduino Nano with the program and you're done.
+6. Insert the electronics into the Arduino and close it up.
+
+## Usage
+Hold the Power Button for approx. 1 second and release it. The Lightstick should vibrate for a second and then the lights turn on, defaulting to a neon green.
+
+Press the button to cycle between colors and hold it for a second to turn it off again.

arduino.ino

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+const int buttonPin = 2; // Pin for the button
+const int redPin = 11; // Pin for the red channel of RGB LED
+const int greenPin = 10; // Pin for the green channel of RGB LED
+const int bluePin = 9; // Pin for the blue channel of RGB LED
+const int motorPin = 8; // Pin to control the motor
+
+bool ledState = false; // State of the onboard LED
+unsigned long buttonPressStartTime = 0; // Time when the button press starts
+bool buttonPressed = false; // Current button pressed state
+unsigned long lastButtonPress = 0; // Last time the button was pressed
+int colorIndex = 0; // Index for cycling colors
+
+// Define colors to cycle through (RGB format)
+const int colors[][3] = {
+    {127,255,0},     // Neon Green
+    {255, 0, 0},    // Red
+    {0, 255, 0},    // Green
+    {0, 0, 255},    // Blue
+    {255, 255, 0},  // Yellow
+    {0, 255, 255},  // Cyan
+    {255, 0, 255}   // Magenta
+};
+const int numColors = sizeof(colors) / sizeof(colors[0]);
+
+void setup() {
+    pinMode(buttonPin, INPUT_PULLUP); // Set the button pin as input with pull-up resistor
+    pinMode(ledPin, OUTPUT); // Set the LED pin as output
+    pinMode(redPin, OUTPUT); // Set the red pin as output
+    pinMode(greenPin, OUTPUT); // Set the green pin as output
+    pinMode(bluePin, OUTPUT); // Set the blue pin as output
+    pinMode(motorPin, OUTPUT); // Set the motor control pin as output
+
+    // Initialize RGB LED to off and motor off
+    setRGB(0, 0, 0);
+    digitalWrite(motorPin, LOW); // Ensure motor is off
+
+    pinMode(LED_BUILTIN, OUTPUT); // Set the onboard LED pin as an output
+    digitalWrite(LED_BUILTIN, LOW); // Turn the LED off
+}
+
+void loop() {
+    // Read the button state
+    bool currentButtonState = digitalRead(buttonPin) == LOW;
+
+    if (currentButtonState && !buttonPressed) {
+        // Button just pressed
+        buttonPressed = true;
+        buttonPressStartTime = millis(); // Record the time of the button press
+    } else if (!currentButtonState && buttonPressed) {
+        // Button just released
+        buttonPressed = false;
+
+        // Check duration of button press
+        unsigned long pressDuration = millis() - buttonPressStartTime;
+
+        if (pressDuration >= 500) {
+            // Long press: Toggle onboard LED and motor
+            ledState = !ledState;
+            digitalWrite(ledPin, ledState ? HIGH : LOW);
+
+            if (ledState) {
+                // Turn motor on
+                digitalWrite(motorPin, HIGH);
+                delay(1000); // Keep motor on for 1 second
+                digitalWrite(motorPin, LOW); // Turn motor off
+                setRGB(0, 255, 0); // Start with green
+                colorIndex = 0; // Reset color index
+            } else {
+                // Turn off RGB LED
+                setRGB(0, 0, 0);
+            }
+        } else {
+            // Short press: Cycle colors
+            if (ledState) {
+                colorIndex = (colorIndex + 1) % numColors; // Cycle through colors
+                setRGB(colors[colorIndex][0], colors[colorIndex][1], colors[colorIndex][2]);
+            }
+        }
+
+        // Wait until the button is released before proceeding
+        while (digitalRead(buttonPin) == LOW);
+    }
+}
+
+// Function to set RGB LED color
+void setRGB(int red, int green, int blue) {
+    analogWrite(redPin, 255 - red);
+    analogWrite(greenPin, 255 - green);
+    analogWrite(bluePin, 255 - blue);
+}