Choose your
learning journey.
45 guided real-world projects, from beginner circuits to smart IoT systems. Build, debug, earn XP, and unlock the next level.
A guided ladder from first circuit to first IoT product.
Each level builds on the last. Students unlock projects, badges and skills as they climb.
Browse every project.
Search by sensor or skill, filter by level, difficulty or status.
LED Glow on a Breadboard
Light your first LED with a 9V battery and a single resistor.
Arduino Blink
Make the on-board LED blink — the 'Hello World' of every microcontroller.
Spaceship Interface
Light up a control panel that reacts when you press a launch button.
Love-o-Meter
Measure body heat with a TMP36 and light up 1, 2 or 3 LEDs.
Color Mixing Lamp
Mix red, green and blue light with three light sensors.
Mood Cue
Build a doorknob dial that points an arrow at your current mood.
Light Theremin
Wave your hand over a sensor to play musical notes through a buzzer.
DHT11 Temperature & Humidity
Build a digital weather station that tracks heat and moisture using a single-wire interface.
HC-SR04 Ultrasonic Distance
Master the world of echolocation by building a digital ruler that sees with sound!
IR Obstacle Sensor Module
Build a smart proximity detector that 'sees' objects using invisible infrared light.
LM35 Linear Temperature Sensor
Turn your Arduino into a precision thermometer using the highly accurate LM35 linear sensor.
Soil Moisture Sensor
Build a smart monitoring system that tells you exactly when your plants need water.
Rain Detection Sensor
Build a smart weather station component that detects raindrops and measures rain intensity!
Sound Detection Sensor
Build an electronic 'ear' that can measure volume levels and detect sudden noises.
MAX4466 Microphone Amplifier
Listen to the world by converting sound waves into visual data on your screen.
Flame Sensor
Build a fire-detection circuit that "sees" heat using infrared light.
Hall Effect Sensor (A3144)
Build a solid-state magnetic switch that detects hidden magnetic fields using the power of the Hall Effect.
Water Level Sensor
Build a liquid depth monitor that uses the conductivity of water to measure fill levels in real-time.
Contactless Liquid-Level Sensor
Detect liquid levels through solid containers without ever getting the sensor wet!
Dust Sensor GP2Y1014AU0F
Build an air quality monitor that detects microscopic smoke and dust particles using infrared light.
MQ-2 Combustible Gas Sensor
Build a smart safety sniffer that detects smoke, LPG, and combustible gases in real-time.
MQ-3 Alcohol Sensor
Build a sensitive breathalyzer-style circuit to detect and measure alcohol vapor concentrations.
MQ-5 LPG / Natural Gas Sensor
Build a smart gas leak detector to spot LPG and Natural Gas leaks before they become dangerous.
Dual-Axis Joystick Module
Master the mechanics of gaming controllers by building your own 2-axis input system.
Hall vs IR — comparison lab
Discover the battle between magnetism and light by comparing two of the most popular 'non-contact' digital sensors.
DS18B20 Waterproof Temperature
Master the 1-Wire protocol to read precise temperatures from submerged liquids using a single digital pin.
NTC Thermistor (10k)
Turn heat into data by building a custom digital thermometer using an NTC thermistor and a voltage divider circuit.
BMP280 Pressure & Altitude
Turn your Arduino into a precision altimeter and weather station using high-accuracy barometric sensing.
DS1307 Real-Time Clock
Give your Arduino a permanent memory of time and date, even when unplugged!
DS3231 Precision RTC
Build a high-precision digital clock that keeps perfect time even when the power goes out.
RCWL-0516 Microwave Radar
Detect motion through walls and obstacles using the power of Doppler Effect radio waves!
RC522 RFID Reader
Unlock the world of wireless identification by building your own RFID-based security scanner.
Single-digit 7-Segment Display
Master the building block of digital clocks by controlling an 8-LED matrix arranged in a 'figure 8' pattern.
16x2 Character LCD (parallel)
Master parallel communication by building a high-contrast 16-character digital dashboard.
0.96" SSD1306 OLED
Bring your projects to life with a crisp, high-contrast digital display using only two data wires.
Addressable RGB LED (WS2812)
Master the art of 'NeoPixels' to control hundreds of colorful LEDs using just a single microcontroller pin!
TSL25911 Ambient Light
Measure light with human-eye precision using the high-dynamic-range TSL25911 sensor.
TCS3200 Colour Sensor
Give your Arduino 'vision' by detecting and distinguishing between millions of different colors.
MPU6050 Accelerometer + Gyro
Unlock 3D motion tracking by measuring acceleration and rotation with high precision.
MAX30102 Heart-Rate / SpO2
Build a high-tech medical monitor to visualize your heartbeat and oxygen levels in real-time.
Analog Pulse Sensor (BPM)
Visualize your own heartbeat in real-time by measuring light reflection through your skin!
SD Card Module — datalogger
Turn your Arduino into a professional data logger by saving real-time information to a MicroSD card.
JSN-SR04T Waterproof Ultrasonic
Build a rugged, industrial-grade distance meter that can survive rain, splashes, and outdoor environments.
LoRa SX1276 + DHT22 telemetry
Build a long-range wireless weather station capable of transmitting data over kilometers using LoRa technology.
Remote Plant Watering (Wi-Fi pump)
Build a smart irrigation system that monitors soil moisture and lets you water your plants from any smartphone on your Wi-Fi network.