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
- MiniMe II - Guition ESP32-S3 Discord bot (v1.00.01) with color LCD and LAN web UI
- Frequency Counter - precision frequency counter (write-up coming)
- Hello World 3D - RP2350 SSD1306 OLED Lissajous and 3D demo
- Pico Wi-Fi Demo - RP Pico 2 W Wi-Fi web server + Display Pack (final v1.0.0)
- Voltmeter - linear-scale LM3914 LED meter (KiCad download)
- 3-Bank Display - three PDSP1880 displays; original 2013 sketch + structured rewrite
- CPLD - MAX 7000S (5V) / 7000AE (3.3V); Calculator-full-5v & 3v3 + board tests
- SI5351A - Pico SI5351A synthesizer, 2 kHz–250 MHz in 1 Hz steps
- AD9850 - 10 Hz–30 MHz lab DDS on Arduino