Latest Posts

When I Grow Up...
Practicing the progressive steps will result in an independent craftsman, able to make ‘things’ out of ‘nothing’ in his simple shop. excerpt from Alexander G. Weygers’ book, The Modern Blacksmith

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Hardware Random Number Generator (ATTiny85)
Seven-segment display showing random numbers sourced from the watchdog timer onboard an ATTiny85.

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White Noise Generator Circuit
White noise generator circuit based on reverse-biased transistor junction (12V required).

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Blacksmithing
Notes on the lost art of blacksmithing (or in the modern vernacular, “machining”).

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Full-Stack Developer
Short answer: Anyone who builds everything.

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Crypto Challenge 005
There is something in this picture, but can you see it?

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Raspberry Pi Notes
I find the hardware of a Raspberry Pi somewhat unstable. Nevertheless, it serves as a good learning platform.

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Crypto Challenge 003
Ciphers have been around for a very long time like this widely known technique.

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Crypto Challenge 004
This is a step up from the previous cipher, but still easily broken.

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Crypto Challenge 002
Some cipher modes may hold useful properties (i.e. self-inverting).

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Crypto Challenge 001
Let’s get warmed up with an easy one.

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