From 15c3e2a6b07b7e5c9799c83b0a6f93724b371fb7 Mon Sep 17 00:00:00 2001
From: s3lph <s3lph@kabelsalat.ch>
Date: Mon, 11 Jul 2022 22:26:29 +0200
Subject: [PATCH] Add footprint note

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index 771f5a4..ea11127 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,10 @@ pio run -e benqx3000i -t upload --upload-port /dev/tty<X>
 * USB Micro-B socket
 * SOT-223 3v3 voltage regulator
 
+
+
+The USB socket footprint in this PCB is modified to use circular holes, because our PCB mill can't mill oval holes that small.  If your chosen USB socket has thru-hole legs wider than 1mm, you may want to replace the footprint with another one from KiCad's library.
+
 ### Assembly
 
 1. The copper side (bottom) faces the MAX3232 board, with the 1x4 socket header plugged into the matching in header on the MAX3232 board.