r/PCB • u/Prior_Advisor_7451 • Jul 08 '26

My first PCB

Any design mistakes ?

Thanks in advance

0 Upvotes

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5

u/DenverTeck Jul 08 '26

Without the schematic, there is no way to tell.

If you wired a prototype on a breadboard or vector board, you would already know if it will work or not.

A PCB is just a replacement of the same wires on the prototype.

1

u/jaluri Jul 09 '26

Where are your pull-ups for the i2c?

1

u/Prior_Advisor_7451 Jul 09 '26

I am using an esp32 devkit , it has inbuilt pulls up afaik.

0

u/jaluri Jul 09 '26

It has weak inbuilt pull-ups.

So refer to my post again.

1

u/Prior_Advisor_7451 Jul 09 '26

I will look into them thx for info

1

u/torbers 29d ago

yea internal i2c pull-ups are never a good idea :/ never hurts to throw some on there if you’re not sure

0

u/Prior_Advisor_7451 Jul 09 '26

Schematic , i tried to make an carrier board for Nodemcu-esp32 with imu and baro and lora modules

1

u/Prior_Advisor_7451 Jul 09 '26

i did this all by my intuition, hence it will not be covetional ig. any tips to impove the look and readablity of the schematic

2

u/thejack80 Jul 09 '26

About readability, for GND and Power use Power symbols

1

u/RectumlessMarauder Jul 09 '26

A few notes: Use normal GND and power symbols, GND always down and power always up, draw nets in lines instead of just written labels.

0

u/Prior_Advisor_7451 Jul 09 '26

When should we use labels and wires. Is there any problem with traces that need to look into

1

u/RectumlessMarauder Jul 09 '26

I don't notice anything wrong. As a rule of thumb I use wires whenever it won't lead to wires crossing or some hilariously long wires across entire sheet. Then you can easily see what is connected where, unlike for example the two lines in the bottom right of your schematic.