Written guides for every video

Engineering projects you can build this weekend

Step-by-step written guides with parts lists, wiring, and code for every Engineering To Excel video.

Latest tutorials

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ELE-002ESP Web Server for Addressable Lights · Part 2

Hello, Pixels: Your First Test Sketch

Install the pixel library, upload a short rainbow sketch, and confirm all 200 lights respond before you add Wi-Fi.

  • Beginner
  • 30 min
  • $0 (uses Part 1 hardware)
ELE-001ESP Web Server for Addressable Lights · Part 1

Power and Wire 200 Addressable LEDs

Size the power supply, add power injection, and wire the data line so 200 pixel lights run reliably from a Wi-Fi microcontroller.

  • Beginner
  • 60 min
  • $40 to $90

Every guide has the same parts

  • Video

    Watch the build, then follow along in writing at your own speed.

  • Bill of materials

    Every part with a quantity, so you can order once.

  • Checklist steps

    Tick each step off. The page remembers where you stopped.

  • Copy-ready code

    One button copies a full sketch into the Arduino IDE.

Watch the build, then make it yours

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