A ham oriented SSB exciter for 160m-10m that uses a PC or Raspberry Pi USB host as UI and DSP.

Evolutionary approach to minimize components and complexity when designing filters for output stage of HF transmitter.

Generate ngspice netlist and plot results for a Chebyshev bandpass filter from https://www.changpuak.ch/electronics/Direct-Coupled-Resonator-Bandpass.php

Working on converting my project to Zephyr OS.

My workflow for Markdown --> epub/PDF/DOCX and many others

Chebyshev filter component calculation

A C++-ified and modernized restructuring of JTEncode code that has been forked many times by various hams. This is built for now as part of an ESP-IDF (ESP32C3) test.

A WSPR decoder to read RTL SDR or WAV files directly

This is a mirror from https://sourceforge.net/projects/wsjt-z/files/Source/ to here which is much more convenient for me and probably for you as well.

VFO that lets you connect from computer or phone to control it through WiFi

Just playing around with GNU radio to decode SSB from canned IQ samples

Zephyr OS based STM32 test program to set up SI5351 DDS.

Program to try out values for Skyworks SI5351 frequency synthesizer chip.

A learning experience and testing of ideas for what will eventually be a wideband tuned HF cascode amplifier stage.

KM10 is a PDP-10 CPU (KL10) emulator.

These are PDFs created from MP00301_KL10PV_Jun80-OCR.pdf but with better OCR and split.

Uploaded from KLH emulator Panda TOPS-20 from KLAD sources tape

A resurrection of the DECSYSTEM-20 with its KL10-PV CPU from schematics to fully functional dinosaur in simulation and FPGA.

X11 icosahedron using openGL (really GLFW) instead

Wallclock using ESP32-S3 based Elecrow 7.0inch LCD display and LVGL ported to ESP-IDF

Sort of a fork from https://github.com/Nicholas3388/LuaNode but with no intention of merging again

KL10 model B (KL10-PV) PDP-10 CPU emulation through execution of the original microcode

Intel 8052 simulator written in JavaScript (NodeJS) that can run TinyBasic 51 and Intel's BASIC52

Very simple SPI device programmer based on Raspberry Pi.