Boards in 4 GitHub repositories, designed in KiCad, that use the EJ503A by MPD (-15℃~+90℃ 12V 2.1mm 5.5mm 5A DC Power Jack Right Angle 插件 DC Power Connectors ROHS). See how each wires it, with its parts, size, README and files; the EJ503A’s symbol, footprint and pinout are on its own page.
nagapi2357-ui/Prime_Maxel-v3
V3 torsion ring PCB — original experiment showed apparent prime-ratio advantages, but a subsequent pre-registered replication (Plan C, pure sine waves) returned null on 7/8 metrics.
vishalsaravanan-k/home-automation-using-esp32-and-relay
This project is a basic home automation system built using an ESP32, capable of turning appliances ON/OFF through both mobile app (via Wi-Fi) and an IR remote.
