5V relay driven by ESP-01

Projects Discussion and Showcase Home Automation
1

Greetings,

I designed a PCB for my ESP01 project for home automation. I have them manufactured and tested and they work successfully with no issues so far. But I would like to share it with you to get your advice for optimization in terms of safety, efficiency and size. or whatever.

I considered in the design two type of relays SLA-5VDC-SL-A & SRD-05VDC-SL-C so I can chose based on application needs.

BOM list:

  • WX-DC12003 for voltage step down
  • LD1117V33 TO220 for regulating voltage 5V-3.3V
  • 2N2222 transistor
  • 1N4148 diode
  • 2 Resistor slots
  • KF1000-2P
  • KF1000-3P
  • 3.5mm Thick tracks for 15A with 30 degC increase.

Capture
Capture812×810 76.1 KB

2

A bit late if you manufactured them already.

Show us a good schematic of your circuit.

Give links to components.

3

only small quantities. anything to optimize for version 2?

4

Show us a good schematic of your circuit.

Those traces look way too thin.
There is no reasonable reason why they are so thin.

5

Are going to sell these or give them away? Either way, you need to be sure your personal liability insurance policy is large enough to cover you.
Paul

6

thickening those .2 mm traces to 1.0 mm won't pose no harm

7

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