Diagrama de pines

Pines de LCD de caracteres 16×2 (HD44780, 16 pines)

Pines

Controlador	HD44780 or compatible
Pantalla	16 characters × 2 lines, 5 × 8 dot cells
Tensión de alimentación	5 V (3.3 V versions exist)
Nivel lógico	5 V (TTL)
Interfaz	Parallel, 4-bit or 8-bit
Custom characters	8 (CGRAM)
Contrast	V0 via 10 kΩ trim pot
Backlight	LED on pins 15/16, through a resistor
I2C backpack (optional)	PCF8574 at 0x27, PCF8574A at 0x3F

LED RGB (5 mm, cátodo común, 4 pines)Encapsulado: 5 mm through-hole, 4 leads; Configuration: Common cathode (longest lead); Forward voltage (red): ≈ 2 V typical
Tira LED direccionable WS2812B / NeoPixelLED: WS2812B, 5050 package with built-in driver; Tensión de alimentación: 5 V (chip rated 3.5–5.3 V); Data input high: ≥ 0.7 × VDD (3.5 V at 5 V supply)
Display de 7 segmentos (un dígito, 10 pines)Digit height: 0.56 in (14.2 mm); Configuration: Common cathode (5161AS) or common anode (5161BS); Segments: 7 + decimal point
OLED SSD1306 128×64 (0.96″, I2C, 4 pines)Controlador: SSD1306; Resolution: 128 × 64 pixels, monochrome; Diagonal: 0.96 in
Módulo de 7 segmentos de 4 dígitos TM1637Driver IC: TM1637; Digits: 4 × 7-segment with centre colon; Tensión de alimentación: 3.3–5 V (module)
Módulo de matriz LED 8×8 MAX7219Driver IC: MAX7219; Pantalla: 8 × 8 LEDs (64), single colour; Tensión de alimentación: 5 V (IC rated 4.0–5.5 V)
Pantalla TFT ILI9341 (SPI, 2.4″)Controlador: ILI9341; Resolution: 240 × 320 pixels; Colour depth: Up to 262K colours (18-bit); 16-bit RGB565 typical
Conector PS/2 (mini-DIN de 6 pines)Contactos: 6 (4 usados); Alimentación: 5 V; Reloj: Generado por el dispositivo, 10–16.7 kHz