Welcome to Czechsadecimal Press!
Czechsadecimal Press is Robert Krten's independent imprint for hands-on maker books — each one a full build log of source code, schematics, PCB layouts, and gerbers, not just theory.
The Iron Krten Bench series:
Volume I — Raspberry Pi Pico Test Equipment
Signal Generator, Frequency Counter, Rotary Encoders, Arbitrary Function Generator, and IC Tester
A composable Raspberry Pi Pico bench instrument — signal generator, frequency counter, rotary-encoder controls, an arbitrary function generator, and an IC tester. Read more about Volume I →
Volume II — Raspberry Pi Pico LED Projects
Dial Clocks, LED Cube, Dot Matrix Display, and HEXBUS Game
WS2812-based LED builds on the Raspberry Pi Pico: dial clocks, an LED cube, a dot-matrix display, a reverse-engineered PABX display board, and the HEXBUS game console. Read more about Volume II →
- More coming soon:
- Volume III, A Maker's Guide to I2C (in progress)
- Episode IV, A New Hope: Using QNX® on a Pi (planning stage)
Puzzles:
HEXBUS Volume I — Pure-Logic Puzzles on a Hex Grid
100 pure-logic puzzles on a hex grid, each with a QR code for incremental hints and solutions. Read more about HEXBUS →