K9DTV is my electronics playground for embedded projects - FPGA boards, small MCU builds, fiber optics, HV, RF, and related experiments. These are things I find interesting and wish to share. The menu above lists what is here. Start with Space Wars if you want something you can play.
Space Wars
A modern take on classic Space Wars on a Sipeed Tang Primer 20K FPGA - board-tested final release (1.01.DONE; chip is full). Play in your browser - no board required.
Also here
- MiniMe - ESP32-S3 Discord bot (shipped v0.5.1) with OLED and LAN web UI
- Frequency Counter - precision frequency counter (gated measurement, filtering, calibration)
- Hello World 3D - RP2350 SSD1306 OLED Lissajous and 3D demo
- Pico Wi-Fi Demo - RP Pico 2 W Wi-Fi web server + Display Pack
- Voltmeter - linear-scale LM3914 voltmeter
- 3-Bank Display - three PDSP1880 displays; pot-controlled ASCII scroll
- CPLD - CPLD notes
- SI5351A - Silicon Labs clock / DDS notes
- AD9850 - 10 Hz–30 MHz lab DDS on Arduino