Designing a PCB for Managing 6 Pilot Wires with STM32 and MOC3043

Morning guys, I want to create a manager for 6 pilot wires using MOC3043 for the 220V part, an STM32 Blue Pill, an OLED screen, a few buttons, and an SD card reader for control. The sketch is functional, and the breadboard prototype confirms it works.

Making a printed circuit board for this seems like a good idea, except that I have never made one before (apart from using copper boards, pads, and ferric chloride... yuck).

My questions are:
  • Which free software is the easiest to use for implementing this (with only basic components)?
  • What would be the cost of a 2-layer PCB with plated-through holes, measuring 8 x 10 cm²?
Thank you,
Solution
  1. You can used KiCAD for the design.
  2. You can try pcbway.com or jlcpcb.com both will give you the estimate cost for the size.
Other than that, make sure you follow adequate trace space and width for the AC traces. If you put them too close they might arc and start a fire.
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