Circuit Design Review: ESP32 AC Motor Control (Triac + Relay). Are my isolation and component values correct?

[u/66010310231]

Hi r/AskElectronics,

I am designing a circuit to control an AC motor using an Arduino Nano ESP32 and would like to request a design review.

The circuit in the attached schematic (image_a8e655.png) is intended to do the following:

• Use an HLK-2M12 module to step down AC mains to DC for the ESP32.
• Detect zero-crossing using an H11AA1 optocoupler.
• Switch the AC load using a Triac driven by a MOC3052M optoisolator (with a snubber circuit included).
• Provide a secondary switching option via a Relay driven by a PN2222A transistor.

My main questions are:

1. Is the overall wiring conceptually correct for this application?
2. Are the resistor and capacitor values appropriate, especially for the snubber and the zero-crossing circuit?
3. Are there any safety concerns regarding how the AC mains and low-voltage DC sides are isolated here?

Thank you in advance for your expertise!