From 75b04ef06def54b348400cb1b138afb6749ffd4f Mon Sep 17 00:00:00 2001
From: Cyclic3 <cyclic3.git@gmail.com>
Date: Sat, 14 Nov 2026 12:01:14 +0000
Subject: [PATCH] Fix USB serial issue on Xiao ESP32-S3 Wio (#1416) (#3726)

* Initial attempt at fixing serial issue on Xiao ESP32-S3 Wio (#1416)

* restrict Xiao ESP32-S3 WIO fix to just that board
---
 variants/xiao_s3_wio/XiaoS3WIOBoard.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/variants/xiao_s3_wio/XiaoS3WIOBoard.h b/variants/xiao_s3_wio/XiaoS3WIOBoard.h
index 7ae06a359..4a6353343 100644
--- a/variants/xiao_s3_wio/XiaoS3WIOBoard.h
+++ b/variants/xiao_s3_wio/XiaoS3WIOBoard.h
@@ -7,6 +7,13 @@ class XiaoS3WIOBoard : public ESP32Board {
 public:
   XiaoS3WIOBoard() { }
 
+  void begin() {
+    while (!Serial.availableForWrite())
+      delay(10);
+
+    ESP32Board::begin();
+  }
+
   const char* getManufacturerName() const override {
     return "Xiao S3 WIO";
   }