Flexibles RGB LED Panel WS2812B - Produktvorstellung

In diesem Video möchten wir Ihnen die flexible 16x16 LED RGB Matrix vorstellen. Im Rahmen des Videos werden die technischen Spezifikationen erklärt. Zusätzlich zeigen wir eine Beispielschaltung, um darzustellen, wie die Matrix eingesetzt werden kann und wie die Verkabelung funktioniert.

 ! Achtung: Wenn das Video bei Ihnen nicht angezeigt wird, sollten Sie Ihre Cookie Einstellungen überprüfen. Sie müssen alle Cookies akzeptieren, damit das Video sichtbar ist!

Hier finden Sie die vorgestellte LED Matrix:

RGB LED Panel WS2812B

Verdrahtung der Schaltung:

Code Schriftzug:

// Adafruit_NeoMatrix example for single NeoPixel Shield.
// Scrolls 'Howdy' across the matrix in a portrait (vertical) orientation.

#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#ifndef PSTR
 #define PSTR // Make Arduino Due happy
#endif

#define PIN 16

// MATRIX DECLARATION:
// Parameter 1 = width of NeoPixel matrix
// Parameter 2 = height of matrix
// Parameter 3 = pin number (most are valid)
// Parameter 4 = matrix layout flags, add together as needed:
//   NEO_MATRIX_TOP, NEO_MATRIX_BOTTOM, NEO_MATRIX_LEFT, NEO_MATRIX_RIGHT:
//     Position of the FIRST LED in the matrix; pick two, e.g.
//     NEO_MATRIX_TOP + NEO_MATRIX_LEFT for the top-left corner.
//   NEO_MATRIX_ROWS, NEO_MATRIX_COLUMNS: LEDs are arranged in horizontal
//     rows or in vertical columns, respectively; pick one or the other.
//   NEO_MATRIX_PROGRESSIVE, NEO_MATRIX_ZIGZAG: all rows/columns proceed
//     in the same order, or alternate lines reverse direction; pick one.
//   See example below for these values in action.
// Parameter 5 = 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_GRBW    Pixels are wired for GRBW bitstream (RGB+W NeoPixel products)
//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)


// Example for NeoPixel Shield.  In this application we'd like to use it
// as a 5x8 tall matrix, with the USB port positioned at the top of the
// Arduino.  When held that way, the first pixel is at the top right, and
// lines are arranged in columns, progressive order.  The shield uses
// 800 KHz (v2) pixels that expect GRB color data.
Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(16, 16, PIN,
  NEO_MATRIX_TOP     + NEO_MATRIX_LEFT  +
  NEO_MATRIX_COLUMNS + NEO_MATRIX_ZIGZAG,
  NEO_GRB            + NEO_KHZ800);

const uint16_t colors[] = {
  matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255) };

void setup() {
  matrix.begin();
  matrix.setTextWrap(false);
  matrix.setBrightness(40);
  matrix.setTextColor(colors[0]);
  matrix.setTextSize(1);
}

int x    = matrix.width();
int pass = 0;

void loop() {
  matrix.fillScreen(0);
  matrix.setCursor(x, 0);
  matrix.print(F("AZ-Delivery"));
  if(--x < -72) {
    x = matrix.width();
    if(++pass >= 3) pass = 0;
    matrix.setTextColor(colors[pass]);
  }
  matrix.show();
  delay(100);
}

Code Bitcoin Preis:

// Adafruit_NeoMatrix example for single NeoPixel Shield.
// Scrolls 'Howdy' across the matrix in a portrait (vertical) orientation.

#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#include "credentials.h"
#include <ArduinoJson.h>
#include <WiFi.h>
#include <HTTPClient.h>

// search for crypto apis
String serverName = "https://api.replacemewithyourfavoriteapi.com/price?ids=bitcoin%2Cdogecoin&vs_currencies=eur";
unsigned long previousMillis = 0;
float value_bitcoin = 0;
float value_dogecoin = 0;

#ifndef PSTR
#define PSTR // Make Arduino Due happy
#endif

#define PIN 16

// MATRIX DECLARATION:
// Parameter 1 = width of NeoPixel matrix
// Parameter 2 = height of matrix
// Parameter 3 = pin number (most are valid)
// Parameter 4 = matrix layout flags, add together as needed:
//   NEO_MATRIX_TOP, NEO_MATRIX_BOTTOM, NEO_MATRIX_LEFT, NEO_MATRIX_RIGHT:
//     Position of the FIRST LED in the matrix; pick two, e.g.
//     NEO_MATRIX_TOP + NEO_MATRIX_LEFT for the top-left corner.
//   NEO_MATRIX_ROWS, NEO_MATRIX_COLUMNS: LEDs are arranged in horizontal
//     rows or in vertical columns, respectively; pick one or the other.
//   NEO_MATRIX_PROGRESSIVE, NEO_MATRIX_ZIGZAG: all rows/columns proceed
//     in the same order, or alternate lines reverse direction; pick one.
//   See example below for these values in action.
// Parameter 5 = 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_GRBW    Pixels are wired for GRBW bitstream (RGB+W NeoPixel products)
//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)

// Example for NeoPixel Shield.  In this application we'd like to use it
// as a 5x8 tall matrix, with the USB port positioned at the top of the
// Arduino.  When held that way, the first pixel is at the top right, and
// lines are arranged in columns, progressive order.  The shield uses
// 800 KHz (v2) pixels that expect GRB color data.
Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(16, 16, PIN,
                                               NEO_MATRIX_TOP + NEO_MATRIX_LEFT +
                                                   NEO_MATRIX_COLUMNS + NEO_MATRIX_ZIGZAG,
                                               NEO_GRB + NEO_KHZ800);

const uint16_t colors[] = {
    matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255), matrix.Color(255, 165, 0)};

void connectAP()
{
  Serial.println("Connecting to WiFi..");
  WiFi.begin(ssid, password);

  int cnt = 0;
  while (WiFi.status() != WL_CONNECTED)
  {
    delay(1000);
    Serial.print(".");
    cnt++;

    if (cnt > 20)
      ESP.restart();
  }
  Serial.println(WiFi.localIP());
}

int x = matrix.width();
int pass = 0;

void getCryptoData()
{
  if (WiFi.status() == WL_CONNECTED)
  {
    HTTPClient http;

    http.begin(serverName.c_str());
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0)
    {
      Serial.print("HTTP Response code: ");
      Serial.println(httpResponseCode);
      String payload = http.getString();
      // Serial.println(payload);

      // JSON Output from https://arduinojson.org/v6/assistant

      StaticJsonDocument<96> doc;
      DeserializationError error = deserializeJson(doc, payload);

      if (error)
      {
        Serial.print("deserializeJson() failed: ");
        Serial.println(error.c_str());
        return;
      }

      value_bitcoin = doc["bitcoin"]["eur"];
      value_dogecoin = doc["dogecoin"]["eur"];

      Serial.println(value_bitcoin);
      Serial.println(value_dogecoin);
    }
    else
    {
      Serial.print("Error code: ");
      Serial.println(httpResponseCode);
    }
    http.end();
  }
  else
  {
    Serial.println("Reconnect to AP");
    connectAP();
  }
}

void showMatrix()
{
  // https://javl.github.io/image2cpp/
  // 'pixil-frame-0', 7x10px
  const unsigned char bitcoinlogo[] PROGMEM = {
      0x48, 0xfc, 0xfe, 0xc6, 0xfc, 0xfc, 0xc6, 0xfe, 0xfc, 0x48};

  matrix.fillScreen(0);
  matrix.setCursor(x, 0);
  matrix.print(value_bitcoin);
  if (--x < -72)
  {
    x = matrix.width();
    if (++pass >= 3)
      pass = 0;
    matrix.setTextColor(colors[pass]);
  }
  matrix.drawBitmap(4, 6, bitcoinlogo, 7, 10, colors[3]);
  matrix.show();
  delay(100);
}

void setup()
{
  Serial.begin(115200);
  connectAP();

  matrix.begin();
  matrix.setTextWrap(false);
  matrix.setBrightness(40);
  matrix.setTextColor(colors[0]);
  matrix.setTextSize(1);
}

void loop()
{

  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= 15000)
  {
    previousMillis = currentMillis;

    getCryptoData();
  }

  showMatrix();
}

Credentials:

const char* ssid     = "az-delivery";
const char* password = "mysecretpassword";