From 46e29bcba1fc40139112a6e64b08e0aad98fa219 Mon Sep 17 00:00:00 2001
From: nopnop2002 <hau26280@tree.odn.ne.jp>
Date: Wed, 21 Aug 2024 16:41:07 +0900
Subject: [PATCH] Update README.md

---
 KeyboardDemo/README.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/KeyboardDemo/README.md b/KeyboardDemo/README.md
index c913bb2..e9f5704 100644
--- a/KeyboardDemo/README.md
+++ b/KeyboardDemo/README.md
@@ -26,4 +26,19 @@ ESP32-S2/S3 BOARD          USB CONNECTOR
                            +--+
 ```
 
+# USB live connection
+There are times when it works correctly and times when it doesn't.   
+It works more stably if you connect before starting the firmware.   
+When it works correctly, a log like this will be displayed.   
+```
+I (796) usb_hid: hid_host_device_callback
+I (796) usb_hid: HID Device, protocol 'KEYBOARD' CONNECTED
+I (806) usb_hid: hid_host_device_callback
+I (806) usb_events: event_flags=0x0
+I (816) usb_hid: HID Device, protocol 'NONE' CONNECTED
+I (816) usb_events: event_flags=0x0
+```
 
+
+# Using USB-HUB
+I tried it, but it doesn't work properly via USB-HUB.