Ep042: Capacitive Earthquakes, GRBL on ESP32, Solenoid Engines, and the TI-99 Space Program
Hackaday editors Mike Szczys and Elliot Williams discuss the upcoming Hackaday Supercon badge, which features an FPGA with dual RISC-V cores and requires significant firmware work. They review several community hacks, including Bart Dring’s ESP32-based GRBL controller for a retro Atari plotter, UCSD’s slow soft robot using liquid crystal elastomers, and a capacitive seismic sensor built with a 555 timer. The episode also covers a TI-994A retrocomputer modified into a Kerbal Space Program simulator, solenoid engine builds, and a deep dive into the mechanics of vintage speaking clocks and the future of 5G networks.