Electronics Design

Projects

KiCad: Schematic Editor

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Item list

	Name	Quantity
Item1	XIAO ESP32-C3.	1x
Item2	Female Pin Header 1x3 2.54mm.	4x
Item3	Female Pin Header 1x7 2.54mm.	2x
Item4	1x7 Single Row Pin Header Connector.	2x
Item5	Button 6.0x6.0mm.	1x
Item6	RGB LED STRIP .	2x
Item7	SERVO.	2x

KiCad: PCB Editor

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KiCad: 3D Viewer

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Inkscape: Board

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Roland modela mdx-20: Board

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Test FP Trace

Test FP Cut

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Soldering: Board

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Getting Started with Studio XIAO-ESP32C3

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Item list

	Name	Quantity
Item1	XIAO ESP32-C3.	1x
Item2	Female Pin Header 1x3 2.54mm.	4x
Item3	Female Pin Header 1x7 2.54mm.	2x
Item4	1x7 Single Row Pin Header Connector.	2x
Item5	Button 6.0x6.0mm.	1x

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programming: Board

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plexiLamp_multipleLightThemes

#include 
#ifdef __AVR__
 #include  // Required for 16 MHz Adafruit Trinket
#endif

#define PIXEL_PIN    D7
#define BUTTON_PIN   D5
#define PIXEL_COUNT  10

Adafruit_NeoPixel strip(PIXEL_COUNT, PIXEL_PIN, NEO_GRB + NEO_KHZ800);

bool modeChanged = false; 
int mode = 0; // 0 for flame, 1 for rainbow, 2-8 for solid colors, 9 for off
unsigned long lastDebounceTime = 0;  // the last time the output pin was toggled
unsigned long debounceDelay = 50;    // the debounce time; increase if the output flickers

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

  strip.begin();
  strip.show();
  pinMode(BUTTON_PIN, INPUT_PULLUP);
}

void loop() {
  int reading = digitalRead(BUTTON_PIN);

  // Check button state and debounce
  if (reading == LOW) {
    if ((millis() - lastDebounceTime) > debounceDelay) {
      if (!modeChanged) {
        mode++;
        modeChanged = true;
        if (mode > 9) { // Update the maximum mode number
          mode = 0;
        }
        Serial.print("Mode changed to: ");
        Serial.println(mode);
      }
      lastDebounceTime = millis(); // Reset the debouncing timer
    }
  } else {
    modeChanged = false; // Reset mode changed flag when button is not pressed
  }

  switch (mode) {
    case 0:
      Serial.println("Fire");

      fireAnimation(75);
      break;
    case 1:
      Serial.println("Rainbow");

      rainbowAnimation();
      break;
    default:
      if (mode >= 2 && mode <= 8) {
        Serial.println("Colors");

        solidColor(mode - 2);
      } else if (mode == 9) {
        Serial.println("Off");

        turnOffLights();
      }
      break;
  }
}

void fireAnimation(int wait) {
  // First loop: Set the initial color for each LED
  for (int i = 0; i < strip.numPixels(); i++) {
    int r = random(150, 255); // More red for a fiery color
    int g = random(0, 85);    // Random amount of green to vary between red and yellow
    int b = 0;                // No blue component for fire

    strip.setPixelColor(i, r, g, b);
  }

  // Second loop: Apply the flicker effect
  for (int i = 0; i < strip.numPixels(); i++) {
    uint32_t color = strip.getPixelColor(i);
    int r = (color >> 16) & 0xFF;
    int g = (color >> 8) & 0xFF;

    // Random flicker effect
    int flicker = random(0, 150);
    r = max(0, r - flicker);
    g = max(0, g - flicker);

    strip.setPixelColor(i, r, g, 0);
  }

  strip.show();
  delay(wait);
}

void rainbowAnimation() {
  static unsigned long lastUpdate = 0; // Last update time
  static uint16_t j = 0; // Position in color wheel

  // Update only if the appropriate interval has passed
  if (millis() - lastUpdate > 20) {
    for (int i = 0; i < strip.numPixels(); i++) {
      strip.setPixelColor(i, Wheel((i + j) & 255));
    }
    strip.show();

    j = (j + 1) % 256; // Move to the next position in the color wheel
    lastUpdate = millis(); // Update the last update time
  }
}


// Input a value 0 to 255 to get a color value.
// The colors are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {
  WheelPos = 255 - WheelPos;
  if(WheelPos < 85) {
    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  }
  if(WheelPos < 170) {
    WheelPos -= 85;
    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
  WheelPos -= 170;
  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}

void solidColor(int color) {
  uint32_t col;

  switch(color) {
    case 0: col = strip.Color(255, 0, 0); break; // Red
    case 1: col = strip.Color(255, 165, 0); break; // Orange
    case 2: col = strip.Color(255, 255, 0); break; // Yellow
    case 3: col = strip.Color(0, 255, 0); break; // Green
    case 4: col = strip.Color(0, 0, 255); break; // Blue
    case 5: col = strip.Color(75, 0, 130); break; // Indigo
    case 6: col = strip.Color(238, 130, 238); break; // Violet
    default: col = strip.Color(0, 0, 0); break; // Off
  }

  for(int i = 0; i < strip.numPixels(); i++) {
    strip.setPixelColor(i, col);
  }
  strip.show();
}

void turnOffLights() {
  for(int i = 0; i < strip.numPixels(); i++) {
    strip.setPixelColor(i, strip.Color(0, 0, 0)); // Turn off this LED
  }
  strip.show();
}