I am developing a precision fluid-control system involving:
High-speed solenoid valve actuation (1–5 Hz)
Arduino-based control (Uno platform)
Custom hit-and-hold current driver
Compact, robust PCB (Arduino shield or standalone board)
This is part of a serious R&D prototype (not hobby-level) involving fluid dynamics and controlled pulsing systems.
Must be located in Orange or San Diego County - Work from your home.