ROV electronics tube
From: https://github.com/Towed-ROV/towed-rov/tree/main/Schematic
note: stepper schematic is renewed, and removed from original drawing.
ROV stepper system
Source: https://github.com/autoHammer/towed-rov/tree/towedROV2022-branch/Schematic
Suitcase
From: https://github.com/Towed-ROV/surface-unit/tree/main/Schematic
Dual Voltage converter
EasyEDA file for schematic: SCH_Dual voltage converter_2022-08-27.json
EasyEDA PCB design: PCB_PCB_Dual voltage converter_2022-08-27.json