KiCad Buck & Relay Upgrade

Job ID: 40628802

Budget: $30 – $250 CAD

I have a finished KiCad board that already works but now needs two extra sections added. First, I want the single 24 V AC input to feed a pair of regulated rails: 12 V DC and 5 V DC. I am open to either integrated buck modules or a fully discrete approach—whichever you feel gives the best balance of cost, efficiency, and board real-estate.

Second, I need four relay channels that close whenever they see a brief 3.3 V pulse and route the incoming 24 V AC line to the load. I have no strong preference between solid-state or electromechanical devices and will follow your recommendation once you review the schematic and current requirements.

You will receive the existing KiCad project, including schematic, layout, and the reserved pin locations for each new block. Placement is flexible, so choose whatever keeps the layout clean, thermally sound, and compliant with good EMC practice.

Deliverables required at hand-off:
• Updated KiCad schematic and PCB layout.
• Complete, production-ready BOM with manufacturer part numbers.
• Gerber, drill, and pick-and-place files ready for the board house.
• Any brief design notes that will help with assembly and future maintenance.

Please reply with an estimated cost and timeline after you have a chance to glance over the current design. If you need clarifications—expected load, clearance constraints, or board thickness—just let me know.