Volt-Amp Controller with Safety Features

I am building an integrated volt-ampere meter that also serves as a protection and control module for a pump system. The unit must:

• Measure voltage and current accurately while reacting instantly to high/low-voltage and over/under-current conditions (these three protections are the top priority).
• Manage a water-level subsystem that reads three stainless-steel probes plus one flow sensor, then drives two relays—one energises the starter circuit, the other keeps the motor running.

Scope of work
1. Circuit and PCB: create the full schematic around a MindMotion MM32G0001A1T (or any other MM32 in the same family so our inventory stays unchanged), layout a compact single-board solution, and specify a CC display already stocked in-house.
2. Firmware: write clean, well-documented code that handles measurement, protection logic, probe sensing, flow-rate interpretation, relay timing and user indications on the CC display.
3. Hand-over: deliver schematics, BOM, PCB Gerbers, pick-and-place, compiled hex, full source, and brief production test procedures so I can program and deploy the boards without reverse-engineering anything.

Acceptance
The assembled prototype should:
– Trip within the specified thresholds for voltage and current;
– Halt the motor on dry-run or low-water;
– Recover gracefully when values return to the safe band;
– Drive the starter relay for the required soft-start window, then latch over to the run relay.

I want the circuit and firmware phases tackled first, followed by display fine-tuning. If you have the expertise to take the project from schematic to working code and are comfortable with MindMotion MCUs, let’s move forward.