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New: free beginner tools — LED resistor calculator →

Understand it, then build it.

Free step-by-step tutorials, tools and a community for Canadian beginners, students and electricians. First learn how the circuit works, then build it with your own hands.

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New to electronics? Read these in order. Each one explains the idea, then you build it.

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What is EEDIY?

What this site is and how to use it.

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Your first ESP32: blink an LED

Install Arduino IDE and make your first board blink.

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Read a temperature sensor

Wire a sensor and see real numbers.

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Control a 5V relay safely

Switch things on and off — low voltage only.

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Board tour: ESP32-C6 AMOLED

A close look at a small touch-screen board.

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All tutorials

Every beginner guide in one place.

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Free tools

Understand the numbers before you wire anything.

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All free tools

Calculators and quick references.

Open →

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LED resistor calculator

Pick the right resistor for an LED.

Open →

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Resistor colour code

Read the bands on a resistor.

Open →

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ESP32 pin reference

Which pins are safe to use first.

Open →

Our vision: a place in Canada where anyone can learn electronics from zero and build real things.

Learn by doing

Safety first

Share your build

No question is too basic

Forum

Ask questions, help others, and share what you built.

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ESP32 & MCUs

Questions about boards and code.

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Hardware + AI

Small boards that see, hear and think.

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Industrial automation

24V, relays, sensors, Modbus.

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Project showcase

Show what you built.

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Coming up

New tutorial series, same idea: understand it, then build it.

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Electrician basics

How circuits, switches and motors work, with hands-on builds at safe low voltage.

Coming soon

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PCB design with KiCad

Draw your first schematic, footprint and board.

Coming soon

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Control boards

Power up safely and write your first program.

Coming soon

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ESP32 with AI

Use AI assistants to write and check your code.

Coming soon

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DIY kits & soldering

Solder, inspect and test your first kits.

Coming soon

Shop & services

Kits for learners, and custom boards for real projects.

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Shop

Kits and tools — coming soon.

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Need a custom control board?

The EEDIY Team also designs 24V relay and sensor boards, RS485/Modbus links and firmware.