The part number **1253_0** typically refers to a specific electronic component manufactured by **Adafruit Industries**. Specifically, it is the product ID for their **5mm Diffused Addressable RGB LED (NeoPixel)**. Below is a detailed breakdown of the technical specifications, pinout, and usage for this electronic part. --- ## 1. Technical Specifications This component is unique because it integrates a driver chip (WS2811/WS2812 compatible) directly inside a standard 5mm through-hole LED package. | Feature | Specification | | :--- | :--- | | **Product ID** | 1253 (Adafruit) | | **LED Size** | 5mm (Through-hole) | | **Internal Driver** | WS2811 / WS2812 compatible | | **Input Voltage (VCC)** | +5V DC | | **Control Logic** | Single-wire (One-Wire) interface | | **Max Current** | ~60mA (Full brightness, white) | | **Color Depth** | 24-bit (16.7 million colors) | | **Package Style** | Diffused (Milky white lens) | --- ## 2. Pinout Configuration Since this is an addressable LED, it has four pins rather than the standard two or three. The pins are arranged as follows: 1. **Data Out (DO):** Sends data to the next LED in a chain. 2. **Ground (GND):** Connects to the power supply negative. 3. **VCC (+5V):** Connects to the +5V power supply. 4. **Data In (DI):** Receives the signal from a microcontroller (e.g., Arduino). --- ## 3. Key Electronic Characteristics ### Addressability Each LED can be controlled individually. You can set the color (Red, Green, Blue) and brightness for every single 1253_0 LED in a chain using only **one digital pin** from your microcontroller. ### Chaining (Daisy-Chaining) The "Data Out" pin of the first LED connects to the "Data In" pin of the second LED. This allows you to control hundreds of LEDs in a sequence without needing hundreds of wires. ### Diffusion The "Diffused" lens means the light is scattered. Unlike clear LEDs that produce a harsh "dot" of light, the 1253_0 produces a soft, uniform glow that is better for indicators and status lights. --- ## 4. Connection Diagram (Basic) ```cpp [ Microcontroller ] [ LED 1253_0 ] [ LED 1253_0 ] Pin D6 -------------> [ DI ] [ DO ] --------> [ DI ] [ DO ] ... 5V -------------> [ VCC ] [ VCC ] GND -------------> [ GND ] [ GND ] ``` ### Critical Protection Components When using the 1253_0, it is highly recommended to include: * **Capacitor:** A 1000µF, 6.3V (or higher) capacitor across the + and - power rails. * **Resistor:** A 300 to 500 Ohm resistor between the microcontroller data pin and the first LED's Data Input. ---