DFR0605

    Gravity: Digital RGB LED Module SKU:DFR0605   Introduction Gravity: Digital RGB LED Module is a cascadable single RGB LED module compatible with RGB LED strip. The Gravity interface provides a more elegant manner for the connections between modules and most of mainstream controllers such as Arduino, micro:bit, Firebeetle Series, LattePanda, and Raspberry Pi with an abundant kinds of DFRobot IO expansion shield. Compared to the traditional RGB LED module, where three control signal pins are required for a single LED, this module only needs one signal pin for all LEDs in cascade. Thanks to such individual module design, RGB LED strip built by such independent modules can realize extremely low power consumption per meter compared to traditional RGB LED strip. And such feature makes it possible to cascade more than 100 modules with a total length up to several tens of meters but power requirement no more than 5V 2A. This also makes it much simpler and more flexible to configure the length of an RGB LED strip, without the need of cutting a RGB LED strip or soldering every LED pieces. The module adopts the same high-brightness RGB LED in the traditional RGB LED strip, inheriting its excellent display performance and is fully compatible with the driving circuit or program. This requires little changes for existing programs to shift from RGB LED strip to RGB LED module string. Have fun with this tiny RGB LED module by cool effects of flashing, rainbow, even letters, pictures or animations. Features  Excellent display performance, quality high-brightness WS2812 REB LED  Extremely long cascading length, low unit length power consumption  High compatibility, compatible with 3.3V/5V controller, RGB LED strip drivers or programs  Standard connector, easy setup without cutting or soldering Application  Holiday Decorations  Signal Indicator Specification  LED Type: WS2812 RGB 5050 LED  Input Voltage: 3.3V~5.5V  Maximum Current: 48mA  Quiescent Current: 0.7mA  Interface: Gravity 3P Digital  Dimension: 30.0mm*22.0mm / 1.18*0.87 in Board Overview No. Label Description 1 - Power supply GND 2 + Power supply VCC（3.3~5.3V） 3 DI Control data signal input 4 DO Control data signal output Arduino Tutorial This tutorial presents a basic usage of the module with Arduino UNO. Requirements  Hardware o DFRduino UNO R3 (or similar) x 1 o Gravity: Digital RGB LED Module x 1 o Gravity 3P digital sensor cable (or Dupont wires) x 1  Software o Arduino IDE o Adafruit NeoPixel Library. (About how to install the library?) Connection Diagram Sample Code  Connect the module to the Arduino according to the connection diagram.  Install "Adafruit NeoPixel Library".  Open the Arduino IDE and upload the following sample code to Arduino UNO.   #include     #define PIN_LED 3     // Control signal, connect to DI of the LED  #define NUM_LED 1     // Number of LEDs in a strip    // Custom colour1: Yellow  #define RED_VAL_1       255  #define GREEN_VAL_1     255  #define BLUE_VAL_1      0    // Custom colour2: Purple  #define RED_VAL_2       255  #define GREEN_VAL_2     0  #define BLUE_VAL_2      255    // Custom colour3: Cyan  #define RED_VAL_3       0  #define GREEN_VAL_3     255  #define BLUE_VAL_3      255    // Custom colour4: White  #define RED_VAL_4       255  #define GREEN_VAL_4     255  #define BLUE_VAL_4      255    Adafruit_NeoPixel RGB_Strip = Adafruit_NeoPixel(NUM_LED, PIN_LED, NEO_GRB +  NEO_KHZ800);    void setup() {    RGB_Strip.begin();    RGB_Strip.show();    RGB_Strip.setBrightness(128);    // Set brightness, 0‐255 (darkest ‐ brightest)  }    void loop() {      colorWipe(RGB_Strip.Color(255, 0, 0), 1000);  // Red    colorWipe(RGB_Strip.Color(0, 255, 0), 1000);  // Green    colorWipe(RGB_Strip.Color(0, 0, 255), 1000);  // Blue        colorWipe(RGB_Strip.Color(RED_VAL_1, GREEN_VAL_1, BLUE_VAL_1), 1000);   // Custom  colour1: Yellow    colorWipe(RGB_Strip.Color(RED_VAL_2, GREEN_VAL_2, BLUE_VAL_2), 1000);   // Custom  colour2: Purple    colorWipe(RGB_Strip.Color(RED_VAL_3, GREEN_VAL_3, BLUE_VAL_3), 1000);   // Custom  colour3: Cyan    colorWipe(RGB_Strip.Color(RED_VAL_4, GREEN_VAL_4, BLUE_VAL_4), 1000);   // Custom  colour4: White        rainbow(20);  // Rainbow  }    // Fill the dots one after the other with a color  void colorWipe(uint32_t c, uint16_t wait) {    for (uint16_t i = 0; i