diff --git a/i2c.py/readme.md b/i2c.py/readme.md
index 32162b3..8c09ba8 100644
--- a/i2c.py/readme.md
+++ b/i2c.py/readme.md
@@ -5,7 +5,14 @@
 apt install -y fonts-wqy-microhei fonts-wqy-zenhei
 apt install -y i2c-tools libgpiod-dev
 apt install -y python3-pip python3-pil python3-libgpiod
-pip3 install adafruit-circuitpython-ssd13060 --break-system-packages
+## 安装依赖
+## 开发环境
+cd i2c.py
+python3 -m venv .venv
+source .venv/bin/activate
+pip3 install adafruit-circuitpython-ssd1306
+## 系统依赖
+pip3 install adafruit-circuitpython-ssd1306 --break-system-packages
 ```
 2. 调试