Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.
A self-contained “retro PC” platform built around the ESP32, exposing classic PC-style IO: VGA video, PS/2 keyboard/mouse, audio... show moreA self-contained “retro PC” platform built around the ESP32, exposing classic PC-style IO: VGA video, PS/2 keyboard/mouse,...