Build a smart home you actually understand.

From what a circuit is to voice control.

Every module ends with something on your desk that works — not just a chapter you read.

1. 01

   Your parts and your bench

   You walk away withEvery part identified, a breadboard you can read, and the safety rules

   What to buy, what each part is, how a breadboard is connected inside, and the line between the 5 volts you can touch and the wall power you can't.

2. 02

   Key module

   Electricity you can use

   You walk away withVoltage, current, resistance and power — enough to size a part yourself

   Ohm's law and the power formula, used on real parts instead of memorized. Ends with the voltage divider, the circuit half the course is built on.

3. 03

   The parts in your kit

   You walk away withRead a resistor, place a capacitor, and never burn an LED

   Resistors and their color bands, capacitors and polarity, diodes and LEDs — what each one does in a circuit and how to tell them apart.

4. 04

   Meet the NodeMCU

   You walk away withYour board programmed over USB and scanning the Wi-Fi around you

   The board, how to power it without killing it, which pins are safe, the driver, the Arduino IDE, and your first uploads.

5. 05

   Inputs and outputs

   You walk away withA knob, a button and an LED under your program's control

   Analog readings, digital reads and writes, pull-up resistors and debouncing: the four ideas every later project reuses.

6. 06

   Sensing the room

   You walk away withA light that turns on when it gets dark, and a working thermometer

   A light sensor and a temperature sensor, both read through the voltage divider from Module 2.

7. 07

   Switching and showing

   You walk away withRelays that switch real loads, and readings on a screen

   How a relay lets a 3.3-volt pin control something much bigger, how to do that safely, and how to drive a 16x2 character display.

8. 08

   Remotes, clocks and cards

   You walk away withAn infrared remote, a real-time clock and an RFID door key

   Three modules, three ways of talking to a chip: timed pulses, I2C and SPI.

9. 09

   The connected home

   You walk away with“Alexa, turn on the lamp” — answered by a board you built

   Wi-Fi, a cloud service, voice control, and a final build that combines the sensors, the display and the relays.

Pay once. Keep it for life.

What you're probably wondering.

1. 01

   I've never touched electronics or written code. Can I keep up?

   That is the starting point the course assumes. The first three modules cover electricity and the parts themselves before the board is ever plugged in, and the programming starts with a blinking light.

2. 02

   Are the lessons videos?

   No. There are no videos and no live classes. Every lesson is written step by step, with wiring tables, diagrams, and the code right there to copy — so you move at your own speed and never scrub through a video looking for one connection.

3. 03

   What parts do I have to buy?

   The parts are not included in the course price; you buy them yourself. You need a NodeMCU ESP8266 board, a breadboard, jumper wires, a light sensor (LDR), a temperature sensor (NTC thermistor), a 4-channel relay module, a 16x2 LCD, an infrared receiver and remote, a DS1307 clock module, an RC522 RFID reader, and a handful of small parts: resistors, LEDs, capacitors, a push button, a potentiometer, and a buzzer. All of them are generic and sold by many stores, separately or bundled. Prices vary too much to quote one here. The complete list, with what to look for in each part, is Lesson 2 of Module 1.

4. 04

   What else do I need?

   A computer running Windows, macOS, or Linux with a USB port, and a USB data cable that fits your board. The programming software, the Arduino IDE, is free. For the last module you also need a 2.4 GHz Wi-Fi network — the ESP8266 does not connect to 5 GHz networks — plus the Alexa app and an account at Sinric Pro, a third-party cloud service with its own plans. Check what its free plan covers before you get to Module 9.

5. 05

   Do I need to solder?

   Not if you buy the display and the RFID reader with their header pins already soldered on. Both are often sold with the pins loose in the bag, and those would need soldering. The parts list in Lesson 2 of Module 1 says what to look for. Everything else plugs into the breadboard.

6. 06

   Will I be working with wall power?

   Only if you choose to. Every required build runs on the 5 volts from a USB port. One lesson in Module 7 puts a relay in line with a plug-in lamp on household voltage. It is optional and marked as optional, and nothing after it depends on it — the relay lessons before it switch LEDs instead. Household voltage can injure or kill. If you have any doubt, skip that lesson.

7. 07

   How much time does it take?

   About 22 hours of lessons in total, across 40 lessons. That is reading and building time as estimated lesson by lesson; a circuit that doesn't work the first time adds to it. It's self-paced, so there's no deadline, and your access doesn't expire.

8. 08

   Is this a subscription?

   No recurring charges, ever. You pay once and get lifetime access to the course, including every future update.

9. 09

   What if it's not for me?

   You're covered by a 7-day money-back guarantee. Read the first modules; if it's not what you expected, refund it yourself with the button on your account page within 7 days and you get the full course price back — no questions. Once the refund goes through, your account loses access to the course. The guarantee covers what you paid for the course, not parts you bought from a store.

10. 10

    How do I get help?

    For your account, access, or payment, everything is on the Support page: how to reach me, where to log in, what to do if you forget your password, and how refunds work. For a circuit that isn't working, the lessons have an “If it didn't work” section, and the course collects all of them in one searchable index. The course does not include one-on-one help with your build.

    Go to the Support page