The manual says what, not why
Each lesson explains the idea behind the circuit, so you can change it and build your own.
IoT Lessons walks you through every build one step at a time: the parts you need, how to wire them, the code to upload, and why it all works.
Most people finish a few, get stuck, and put the box on a shelf. The parts were never the issue. The instructions were.
Each lesson explains the idea behind the circuit, so you can change it and build your own.
Terms like pull-up resistor and PWM are highlighted. Tap one to get a plain-English explanation.
Follow a clear path from your first blinking LED to advanced projects, earning levels and badges along the way.
Every lesson follows the same flow: check the parts, build it step by step with photos, then upload the code and see it work.


Connect the anode (longer leg) of the LED to one end of the resistor, so current flows from the Arduino, through the resistor and the LED, to ground.
This code turns the LED on and off every second.
void setup() { pinMode(12, OUTPUT); } void loop() { digitalWrite(12, HIGH); delay(1000); digitalWrite(12, LOW); delay(1000); }
No stock images. Each step shows exactly what your breadboard should look like.








The first course takes you from your first LED to a working monitoring station, using only the parts in a typical Arduino UNO starter kit. More courses will build on it from there.
Combine sensors, a display, and a clock into one working device.
Lessons for other popular kits and microcontrollers, so you can keep learning with whatever is on your desk.
Deeper circuits, bigger builds, and the theory that ties them together.
Bring your devices online: sensors that report data, and gadgets you control from your phone.
Every finished lesson moves you along your learning path. Earn badges like First Circuit, Sensor Master, and Hardware Explorer. Your progress syncs across all your devices.
2 more lessons to become a Maker
iPhone, Android, tablet, or browser. Keep the lesson open next to your breadboard.
English, Spanish, French, and Russian to start, with more to come.
Explanations for every component and concept, right where you need them.
Syntax highlighting, one-tap copy, and explanations for the key lines.
The app is built and the first lessons are written. We paused before the public launch to decide where to take it next, and your interest helps us make that call.
Leave your email and tell us a little about yourself. We'll write to you once, when it's ready.
Not yet. The app is built but hasn't launched publicly. Join the list and you'll be among the first to get access.
The first course is written for Arduino UNO starter kits, the common kind with a breadboard, LEDs, sensors, a servo, an LCD, and an RFID reader. Each lesson lists the exact parts, so you can check before you start. Courses for more kits are planned.
No. The first lessons cover installing the tools and staying safe, and every technical term comes with an explanation.
The plan is to keep the core lessons free and offer advanced lessons as a paid upgrade. Your answers in the form help us decide.