Hello, first time poster, couple years lurking. Project I have been working on will monitor hydraulic and air pressure; hydraulic pressure in a air hydraulic pump that feeds a remote head hydraulic crimping tool. The air pressure will monitor the air pressure into the pump. These systems use a var…

4-20mA Pressure Project with Splitboard

jim-p September 5, 2025, 1:02pm 6

Can't see how since the Arduino ground is not connected to anything.

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