Guided Hardware Projects
Build real robotics, automation, and IoT projects. Every project includes a full parts list, step-by-step assembly instructions, annotated Arduino sketches, and a 1-click Circuit Lab simulation.
Traffic light
Three LEDs, three resistors and a function that runs the light sequence.
Reaction timer game
A random wait, a light, a beep — and how fast can you press?
Automatic night light
An LDR divider senses darkness and switches a lamp on.
Parking sensor
An ultrasonic sensor with beeps that speed up as an obstacle approaches.
LCD thermometer
Temperature and humidity on a 16×2 display.
Servo pointer gauge
A knob steers a servo — the start of a robot arm or an analog gauge.
Temperature-controlled fan
Combine a sensor, a decision and a motor driver into an automatic fan.
RGB mood lamp
Blend red, green and blue with PWM for any colour.
Light theremin
An instrument you play by waving your hand over a light sensor.
ESP32 plant monitor
Watch soil moisture on a 3.3 V board and warn when the plant needs water.
ESP32 smart lamp switch
A button toggles a relay — the core of every smart switch.
Wi-Fi controlled LED
Serve a web page from the ESP32 and switch an LED from your phone. Needs a real board.