SM16 - Strommessadapter, Gossen Metrawatt

PROXXON Metall- und Leitungssuchgerät MV 9 /Metallsuchgerät MV9 / No 22060

Monacor E-11B   35x14mm  1 Stk.

Lusya Professional VU Meter Driver Board DB Audio Level Meter Passive Treiberplatine Für Verstärker A5-020

LED VU-Meter-Bausatz

Selbstgebautes VU-Meter

• 1x Arduino Nano (mit FTDI)
• 1x U64 LED Panel
• 2x 10 KOhm Widerstände
• 1x MB102 Breadboard Spannungsversorgung
• 1x 10 uF 64 Volt Elektrolytkondensator
• 1x Stereo Klinken-Steckverbinder 3.5 mm Buchse

Abbindung: Gleiches NF Signal mit einem Gleichspannungsoffset.

#include <Adafruit_NeoPixel.h>// Which pin on the Arduino is connected to the NeoPixels?// On a Trinket or Gemma we suggest changing this to 1:#define LED_PIN     13// How many NeoPixels are attached to the Arduino?#define LED_COUNT  64// NeoPixel brightness, 0 (min) to 255 (max)#define BRIGHTNESS 100// Declare our NeoPixel strip object:Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);// Argument 1 = Number of pixels in NeoPixel strip// Argument 2 = Arduino pin number (most are valid)// Argument 3 = Pixel type flags, add together as needed://   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)//   NEO_RGBW    Pixels are wired for RGBW bitstream (NeoPixel RGBW products)#define analogPinLeft A5 // Left Audio Channel, connected to analog pin A5int val_left_old = 0;  // variable to store the value read from Channel Leftint Base_Left = 0;   // 0 Basisvoid setup(){  strip.begin();           // INITIALIZE NeoPixel strip object (REQUIRED)  strip.show();            // Turn OFF all pixels ASAP  strip.setBrightness(BRIGHTNESS); // Set BRIGHTNESS to about 1/5 (max = 255)  Base_Left = analogRead(analogPinLeft);  Base_Left += analogRead(analogPinLeft);  Base_Left += analogRead(analogPinLeft);  Base_Left += analogRead(analogPinLeft);  Base_Left = Base_Left / 4;  colorWipe(strip.Color(255, 0, 0), 5); // Red  colorWipe(strip.Color(255, 255, 0), 5); // yellow  colorWipe(strip.Color(0, 255, 0), 5); // Green  rainbowFade2White(1, 1, 1);}void loop(){  Left_VU_Meter(64, 100);  delay(40);}void Left_VU_Meter(byte Level_Max_Pixels, int sensitivity){  int val_left = 0;  val_left = analogRead(analogPinLeft);  // read the input pin  val_left += analogRead(analogPinLeft);  // read the input pin  val_left += analogRead(analogPinLeft);  // read the input pin  val_left += analogRead(analogPinLeft);  // read the input pin  val_left = val_left / 4;  int Signal_Strength = val_left - Base_Left;  if (Signal_Strength < 0) {    Signal_Strength = - Signal_Strength;  }  byte VU_Led_Level =  map(Signal_Strength, 0, sensitivity , 0, Level_Max_Pixels);  for (int i = 0; i < Level_Max_Pixels; i++) {    strip.setPixelColor(i, 0, 0, 0);  // Clear pixel's color (in RAM)  }  for (int i = 0; i < VU_Led_Level; i++) { // For each pixel in strip...    uint32_t hue = map(i, Level_Max_Pixels - 1, 0, 0, 21800);    uint32_t rgbcolor = strip.ColorHSV(hue, 255, BRIGHTNESS); // Hue to RGB Conversation    strip.setPixelColor(i, rgbcolor);         //  Set pixel's color (in RAM)  }  strip.show();   //  Update strip to match}void colorWipe(uint32_t color, int wait) {  for (int i = 0; i < strip.numPixels(); i++) { // For each pixel in strip...    strip.setPixelColor(i, color);         //  Set pixel's color (in RAM)    strip.show();                          //  Update strip to match    delay(wait);                           //  Pause for a moment  }}void rainbowFade2White(int wait, int rainbowLoops, int whiteLoops) {  int fadeVal = 0, fadeMax = 100;  // Hue of first pixel runs 'rainbowLoops' complete loops through the color  // wheel. Color wheel has a range of 65536 but it's OK if we roll over, so  // just count from 0 to rainbowLoops*65536, using steps of 256 so we  // advance around the wheel at a decent clip.  for (uint32_t firstPixelHue = 0; firstPixelHue < rainbowLoops * 65536;       firstPixelHue += 256) {    for (int i = 0; i < strip.numPixels(); i++) { // For each pixel in strip...      // Offset pixel hue by an amount to make one full revolution of the      // color wheel (range of 65536) along the length of the strip      // (strip.numPixels() steps):      uint32_t pixelHue = firstPixelHue + (i * 65536L / strip.numPixels());      // strip.ColorHSV() can take 1 or 3 arguments: a hue (0 to 65535) or      // optionally add saturation and value (brightness) (each 0 to 255).      // Here we're using just the three-argument variant, though the      // second value (saturation) is a constant 255.      strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue, 255,                                           255 * fadeVal / fadeMax)));    }    strip.show();    delay(wait);    if (firstPixelHue < 65536) {                             // First loop,      if (fadeVal < fadeMax) fadeVal++;                      // fade in    } else if (firstPixelHue >= ((rainbowLoops - 1) * 65536)) { // Last loop,      if (fadeVal > 0) fadeVal--;                            // fade out    } else {      fadeVal = fadeMax; // Interim loop, make sure fade is at max    }  }  for (int k = 0; k < whiteLoops; k++) {    for (int j = 0; j < 256; j++) { // Ramp up 0 to 255      // Fill entire strip with white at gamma-corrected brightness level 'j':      strip.fill(strip.Color(0, 0, 0, strip.gamma8(j)));      strip.show();    }    for (int j = 255; j >= 0; j--) { // Ramp down 255 to 0      strip.fill(strip.Color(0, 0, 0, strip.gamma8(j)));      strip.show();    }  }}