A small, WiFi-connected countdown device built with an ESP8266 and an OLED display. It shows the remaining time until a meaningful event
PD240W is a complete hardware and firmware project converting USB-C Power Delivery into a programmable 240W (48V 5A) bench power supply, featuring C++ code for Raspberry Pi Pico, custom PCB Gerbers, and a 3D-printable enclosure.
theohg
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Retia 2024 DEF CON badge (ESP32-S3): docs, pinouts, flashable firmware incl. DOOM and Meshtastic, examples, KiCad hardware sources