What do I need to get started with LED pixels?

You need four things: (1) LED pixels — a WS2812B strip is the best starting point; (2) A controller — an ESP32 board with WLED firmware; (3) A power supply — 5V rated for your pixel count (pixel count × 0.06A × 1.2 safety factor); (4) Wires and connectors — 18 AWG silicone wire for power, and a JST connector or direct solder to the strip.

Do I need to know programming to use LED pixels?

No. WLED firmware provides a complete web-based interface with 100+ built-in effects, color pickers, and preset management. Flash the firmware to an ESP32 (one click via the WLED web installer), connect your strip, and control everything from your phone or computer. Programming is only needed for fully custom behavior.

What is the difference between addressable and non-addressable LED strips?

Non-addressable (analog) strips change all LEDs to the same color simultaneously. Addressable (digital/pixel) strips let you control each LED independently — different colors, brightness levels, and animation patterns per pixel. Addressable strips use ICs like WS2812B, APA102, or SK6812 to achieve individual pixel control.

Is it safe to work with LED pixels?

Yes. LED pixels operate at 5V or 12V DC — safe low voltage. However, large installations draw significant current (a 1000-pixel WS2812B setup draws up to 60A at 5V = 300W). Always use appropriately rated power supplies, fuse your power distribution, and use adequate wire gauge (14-16 AWG for main power runs).

Getting Started with Addressable LED Pixels

This guide walks you through everything you need to go from zero to a working LED pixel setup. By the end, you will have a strip of individually addressable LEDs displaying colorful animations controlled from your phone.

Step 1: Gather Your Components

LED strip: WS2812B 60 LEDs/m, 1m, IP30 — the ideal starter strip
Controller: ESP32 WLED board — pre-flashed, ready to go
Power supply: 5V 4A USB-C or 5V 10A barrel jack supply
Wire: 22 AWG silicone hookup wire (included with our starter kits)
Capacitor: 1000μF 6.3V electrolytic (included with our ESP32 boards)

Step 2: Wire It Up

Connect the strip's 5V (red) and GND (black) wires to your power supply. Connect the strip's DATA (green) wire to the ESP32 board's data output pin. Place the 1000μF capacitor across 5V and GND close to the strip's power input. That's it — three connections.

Step 3: Configure WLED

Power on the ESP32. It creates a Wi-Fi access point called "WLED-AP". Connect your phone to it, open a browser, and navigate to 4.3.2.1. Set your home Wi-Fi credentials, configure the LED count (60 for a 1m 60 LED/m strip), and save. WLED will connect to your Wi-Fi — open its IP address in any browser to access the full control panel.

Step 4: Play with Effects

WLED includes 100+ built-in effects: Rainbow, Fire, Meteor, Twinkle, Gradient, Chase, Colorwaves, Fireworks, and many more. Pick a color, select an effect, adjust speed and intensity, and save presets for your favorites. Add sound reactivity by enabling the AudioReactive usermod and connecting a microphone module.

Next Steps

Choose the right pixel type for your next project
Calculate power requirements for larger installations
Mount and weatherproof for permanent placement
Write custom code with FastLED and Arduino