Build kits
Electronics you build yourself
Kits you build yourself: you put together devices from transistors and logic gates in a browser simulator — step by step, following picture instructions, like a construction kit.
What it looks like
A real build, not staged: the author builds one MUX16 from two MUX8s — mistakes and rebuilds included. Sped up 6×.
Pocket LCD games
One game — from a watch made of gates to your own processor and memory. The kits go in order.
A Watch and a Game from GatesA pocket LCD game with a watch from logic gates — from a single digit to "Star Harvest".15 lessons9,490 transistors39 €Open →
Your Own CPU for a Pocket GameA 4-bit processor: ALU, memory, jumps — and the game running on it as a program.8 lessons6,098 transistors↳ requires «A Watch and a Game from Gates»39 €Open →
Transistor MemoryMemory from latches — from one bit to 256 words — instead of the ready-made part.5 lessons41,840 transistors↳ requires «Your Own CPU for a Pocket Game»FreeOpen →Hardware Basics
From scratch, from the transistor: each kit is one idea about how a computer works. The Worlds of Mandelbrot and Julia continue The Fractal Machine.
Character GeneratorA ROM made of transistors: 16 characters, 5 × 7, every dot is a transistor.5 lessons455 transistors10 €Open →
How a CPU CountsAn adder, negative numbers, flags and a signed calculator.6 lessons1,208 transistorsFreeOpen →
The Fractal MachineA circuit draws fractals on a 64 × 64 screen by itself — no processor.6 lessons + lesson 03,064 transistorsFreeOpen →
The Worlds of Mandelbrot and JuliaFractions, its own multiplier and three fractals on 128 × 128 screens.6 lessons106,610 transistors↳ requires «The Fractal Machine»39 €Open →How Things Around Us Work
Everyday things taken apart down to the transistor: you build them yourself and see how they work inside.
