From 7f6e19a44804a2aaf5656a873512c379372a2b8e Mon Sep 17 00:00:00 2001
From: vany5921 <908744431@qq.com>
Date: Tue, 18 Feb 2020 14:30:02 +0800
Subject: [PATCH] Update hat-puppyc.md

---
 docs/en/hat/hat-puppyc.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/en/hat/hat-puppyc.md b/docs/en/hat/hat-puppyc.md
index 7d72e6a1..3c02dfe9 100644
--- a/docs/en/hat/hat-puppyc.md
+++ b/docs/en/hat/hat-puppyc.md
@@ -8,7 +8,7 @@
 
 **PuppyC** is a programmable four-legged robot base compatible with M5StickC. It contains the STM32F030F4 microcontroller，Four SG90 micro servos, a battery holder and an independent switch.
 
-PuppyC base needs to be used in conjunction with the M5StickC controller.After the StickC is programmed, it communicates with PuppyC through the I2C protocol to control the steering motion.
+PuppyC base needs to be used in conjunction with the M5StickC controller.After the StickC is programmed, it communicates with PuppyC through the I2C protocol (0x38) to control the steering motion.
 
 It walks slowly and is easy to control.Due to the small contact area, the movement is slow and the frictional force is as large as possible even on a soft surface.