
PCB auto doser
gabriel-247/auto-doser-aqurium
Project custom aquarium auto-doser berbasis ESP8266/Wemos dan mobile app.
Boards in 3 GitHub repositories, designed in KiCad, that use the ULN2002A by STMicroelectronics (-40℃~+85℃ 0.82mA 1.7V 15pF 30V 500mA 50V 50uA 65uA Seven channels DIP-16 Darlington Transistor Arrays ROHS). See how each wires it, with its parts, size, README and files; the ULN2002A’s symbol, footprint and pinout are on its own page.

gabriel-247/auto-doser-aqurium
Project custom aquarium auto-doser berbasis ESP8266/Wemos dan mobile app.

grtwall/carputer-pcb
Combined ESP32 sensor + body controller PCB — KiCad project, Gerbers, schematics, BOM

grtwall/esp32_microsquirt_iobox
ESP32 MicroSquirt I/O box — CAN bridge that turns MS2/Extra's realtime broadcast into fan/IAC/generic outputs, with a GC9A01 round gauge, 29-bit CAN responder, and 0x710 dash broadcast.