Rotary-encoder music dial
by EEMENTOR team
Start learning
Pick a topic and follow free lessons with wiring diagrams and code.
Start here · beginner lessons
Wi-Fi and connected projects
Light, motion, temperature and more
Step-by-step builds
3D Printer Accessories
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Tell us what you want to learn and build, and we'll suggest a kit with its learning path.
Featured kit
Tax included. Duties paid on delivery.
Your gateway to the Internet of Things. Everything you need to start building smart, connected projects with the versatile ESP32, from home automation to camera projects.
3D printing
Print enclosures, mounts, wheels and robot parts for the projects in our lessons. Every printable part comes with a free STL file.
by EEMENTOR team
by EEMENTOR team
by EEMENTOR team
by EEMENTOR team
by EEMENTOR team
by EEMENTOR team
Step-by-step tracks from your first circuit to a finished project.
Beginner
Before your first project: learn voltage, current and resistance, how a breadboard works, and how to use LEDs, resistors, buttons and potentiometers. No code needed.
Latest lessons
Intermediate
Learn how artificial intelligence works by building it: teach a neuron, a colour detector and a temperature predictor, run neural networks on the ESP32, control things with your voice and camera, and build AI chat projects with Claude.
Latest lessons
Beginner
Your first steps in electronics with the UNO R3: blink an LED, read buttons and keypads, move servos and show text on an LCD, then explore the 45-in-1 Sensor Kit and build gadgets that react to sound, light, touch and tilt.
Latest lessons
Advanced
Ten bigger UNO R3 builds that combine everything from the Arduino paths: a weather logger, an RFID alarm, a greenhouse, a digital safe, a toy-aircraft radar and a vending machine.
Latest lessons
Advanced
Fifteen bigger ESP32 builds that connect to the internet: a radar with a web display, a smart home hub, a desk robot, a rain gauge, a Telegram sweet dispenser and a terrarium controller.
Latest lessons
Intermediate
Set up the ESP32 and build your first Wi-Fi projects, show live sensor readings on your phone, then control your projects from anywhere with two free apps, Blynk and Arduino Cloud.
Latest lessons
How EEMENTOR works
Pick an EEMENTOR kit for Arduino, ESP32 or sensors.
See the kits →Free step-by-step lessons with wiring diagrams and code.
Learning paths →Put your skills together in real EEMENTOR projects.
Projects →Send us your project and we may feature it in the hub.
Share a project →For schools & educators
Classroom quantities of EEMENTOR kits, with free structured lessons for every student.
STEM kits, boards and tools ship from our fulfilment partner’s warehouse in China with tracked shipping. QIDI 3D printers and accessories ship from QIDI’s EU warehouse. If you order both, they arrive in separate parcels. See our Shipping Policy for the full list of countries.
Nothing: shipping is free on every order, to every country we ship to, whatever the order total. That includes QIDI 3D printers.
Kits: orders are processed within 1–3 business days, and delivery usually takes 5–10 business days after dispatch. 3D printers: 2–5 business days within the EU; 7–14 business days elsewhere. If there’s a delay, we’ll let you know in advance so you can decide whether to wait or cancel for a full refund.
No. Our prices include VAT, and we ship DDP (Delivery Duty Paid) to the countries where it’s available at checkout, so we handle customs and pay import duties for you. If a carrier ever asks you for charges on a DDP order, don’t pay. Contact us and we’ll sort it out.
Yes. Every STEM kit comes with free step-by-step lessons in our Learning & Projects Hub, with code and wiring diagrams.
No. Our beginner lessons start from the basics, like blinking your first LED, and build up step by step. Each kit’s page and lessons show the difficulty level.
Many kits are designed for learners aged 8 and up; check the age range on each product page. Children should build with an adult, especially when using tools or power supplies.
Yes. You can cancel within 14 days of delivery without giving a reason, and we refund you within 14 days of your cancellation. See our Refund Policy for details.
If your order doesn’t arrive because of a shipping issue, we’ll send a replacement or issue a full refund to your original payment method.
Yes, we’d love to see it. Sign in and submit your project. Our team reviews every submission and publishes the best ones in the hub, credited to you.