Goal:

Use the Dial screen/knob UI to control VFD speed via 0–10V

Use a relay output for Run/Stop (or FWD/REV if possible)

Clean, reliable wiring and code (industrial-ish setup)

Hardware I’m using / planning:

M5Stack Dial (ESP32-S3)

External 0–10V output module (DAC module or converter board)

Relay module / isolated output to drive VFD digital input(s)

Common 24V control cabinet environment (if needed)

What I need help with:

Best/most reliable way to generate 0–10V from ESP32 (recommended module/wiring)

Proper isolation/grounding between ESP32, DAC, and VFD analog input

Example code (Arduino or MicroPython) for knob → voltage output + button/relay logic

UI ideas for the Dial (speed %, Hz, RPM, presets, accel/decel)

If anyone has a wiring diagram, known-good DAC module, sample code, or tips, I’d really appreciate it!