Ohmwork

Ohmwork is a desktop workshop for Mac and Windows. Draw a circuit on paper-white canvas and watch it run live — real voltages, real currents, meters and an oscilloscope. Drop in an Arduino Uno and it runs your genuinely compiled sketch, pin by pin, against the circuit you built.

• A real simulator. Every wire carries a solved voltage; the LED is bright because the maths says so.
• A real Arduino. Your own code, compiled with the official toolchain, blinking and printing over a live serial monitor.
• Lessons that check your work. A built-in course from your first LED to fault-finding — with checks that measure your circuit, not quiz answers.