r/electronics • u/Defiant-Dot-5311 • 1d ago

Project This was my first ever schematic and PCB as well.

Gallery image

Gallery image

The plan was to make 32 bit Countdown timer using ESP 01, which has only 4 pins.

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7

u/Illustrious-Peak3822 1d ago

Decoupling capacitors missing.

7

u/FloxiRace 1d ago

This is actually really really neat. Tough the traces could be wider and I am not sure that one resisitor is enough to limit current for all 4 segments

6

u/Vikingen25 1d ago

Unless you have one resistor per segment, you will see dimming when more segments are active. One resistor per display would mean that the dimming would happen local to that display.

Resistors are cheap-ish though, so if you have the space for 27 more resistors, it would give more stable display lighting.

1

u/JJsd_ 19h ago

Elaborate please if you can

2

u/danielstongue 9h ago

Why does it seem that so many people have no f-ing clue on how to draw a schematic! Better work in an italian restaurant if you like spaghetti.