From fad664ee3dd6aab5eeb6e25a1bf1ebb02180a768 Mon Sep 17 00:00:00 2001
From: nopnop2002 <hau26280@tree.odn.ne.jp>
Date: Thu, 30 Nov 2023 07:56:34 +0900
Subject: [PATCH] Update README.md

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 47ad0bc..cd22ffe 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,9 @@ ESP-IDF V5.1 is required when using ESP32C6.
 
 # Hardware requirements
 - SN65HVD23x CAN-BUS Transceiver   
+SN65HVD23x series has 230/231/232.   
+They differ in standby/sleep mode functionality.   
+Other features are the same.   
 
 - Termination resistance   
 I used 150 ohms.