I am trying to build a pi zero serial expansion with rs232 support. I have put together this schematic and I keep getting an ERC warning. I can’t seem to understand what it means. [image] FYI very new to this, pointers will be appreciated.

ECR Warning on GND pin

Rene_Poschl August 23, 2018, 7:55am 3

Read this FAQ article carefully

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