Circuitopia

Learn how electronics really work — by building them. Turn your iPad into an
electronics lab: wire up a breadboard, drop in LEDs, sensors, buzzers, servos and
a microcontroller, write real embedded C, and watch your circuit come to life.
No kit to buy, no loose wires, nothing to fry.

15 hands-on lessons take you from your very first blinking LED to reading sensors,
mixing colours on an RGB LED, playing melodies on a buzzer, sweeping a servo, and
building a light-sensing night light — each with a clear goal the app checks for
you as you go.

• Write real code — the same C you'd run on actual hardware, interpreted live on
  your iPad
• See electricity flow — a faithful circuit simulation: wire it wrong and it
  won't light up, exactly like real life
• Wire it yourself — tap two points to connect them, drag components onto the
  breadboard
• Learn by doing — guided lessons with goals, hints, and instant feedback

Unlock Pro to open the Sandbox: drag any parts onto the breadboard, wire them
however you like, and run your own sketches — the way real prototyping works.

Perfect for curious beginners, students, makers, and anyone who's always wanted
to learn electronics but didn't know where to start.