Learn on the fly

To share random thoughts and projects on a wide range of topics like microcontrollers, iot, amateur radio & medical technology

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Sunday, September 27, 2026

A Decade in the Making: Building a Homebrew SDR Transceiver with QSD/QSE and RP2350

From an idea on the drawing board to a working SDR prototype with RP2350, QSD/QSE architecture and modern DSP. ...

Friday, June 26, 2026

The RP2040 Minimalist HF Transceiver: A Low-Cost, High-Fun Sandbox for the Radio Tinkerer

After taking a break from homebrewing, seeing the incredible creativity and dedication in the ham radio community completely inspired me to...

Sunday, December 8, 2024

Generating True Random Numbers with a Geiger Counter and an ATtiny13 to serial port

For most cases of random number generation, systems use a pseudo-random number generator (PRNG), that is an algorithm that generates numbers...

Friday, April 24, 2020

Repurpose old TV remote as a universal remote control- [parasite design] [chip in the middle modifier on IR signals]

Most of us will have a couple of old infrared remote controllers lying around. Often we need to use several remote controllers and complicat...

Sunday, May 5, 2019

A tiny avr library for Si5351 [less than 1kb flash]

Si5351 is an integrated circuit from Silicon lab for generating a custom clock signal and is very popular among the amateur radio community....

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