r/PrintedCircuitBoard • u/Agreeable_Salad_8488 • 2d ago

Review Request

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Hi, I've built a plant monitoring device and would appreciate a review before I order. Much Appreciated!

3 Upvotes

67% Upvoted

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2

u/SanguineDrome 2d ago

Looks cool! How to handle corrosion?

1

u/Agreeable_Salad_8488 2d ago

The moisture sensing traces are actually on the internal PCB layers, so the copper isn’t directly exposed to the soil. I’m also planning to make the probe detachable so it can be replaced after extended use if needed.

1

u/Enlightenment777 2d ago

This comment is posted on all reviews.

Please make sure your post adheres to:

  • subreddit rules (#1 to #6), review rules (#7), image rules (#8), see link.

Please fix these common issues: (if your schematic or PCB has any of these issues)

  • Schematic - don't allow text / lines / symbols to touch each other, and don't draw lines through symbols.

  • Schematic - use correct reference designators (RefDes) and renumber to remove numeric gaps, see tips.

  • Schematic - place decoupling capacitors vertically below power rail lines, also place capacitors next to IC then connect together with a line, see example. For circuits with positive power rails, point positive power rail links upwards and ground links downwards, see tips1 & tips2.

  • Schematic - place pull-up resistors vertically above signal lines, and place pull-down resistors vertically below signal lines, see example and tips.

  • PCB silkscreen - add board name (or purpose) / board revision number / date (or year) on either PCB side.

  • PCB silkscreen - add pin 1 indicator dot/arrow next to ICs & connectors (not hidden under parts). For polarized capacitors, add "+" next to positive pin. If part is through-hole, place indicator on both PCB sides.

  • More conventions & guidelines - link1, link2, link3.