diff --git a/i2c.py/readme.md b/i2c.py/readme.md
index 8c09ba8..5ad3ef4 100644
--- a/i2c.py/readme.md
+++ b/i2c.py/readme.md
@@ -10,9 +10,10 @@ apt install -y python3-pip python3-pil python3-libgpiod
 cd i2c.py
 python3 -m venv .venv
 source .venv/bin/activate
-pip3 install adafruit-circuitpython-ssd1306
+# 使用 requirements.txt 安装所有依赖
+pip3 install -r requirements.txt
 ## 系统依赖
-pip3 install adafruit-circuitpython-ssd1306 --break-system-packages
+pip3 install -r requirements.txt --break-system-packages
 ```
 2. 调试
 
diff --git a/i2c.py/requirements.txt b/i2c.py/requirements.txt
new file mode 100644
index 0000000..b3a2ffe
--- /dev/null
+++ b/i2c.py/requirements.txt
@@ -0,0 +1,4 @@
+# Python dependencies for i2c.py project
+adafruit-circuitpython-ssd1306
+adafruit-blinka
+Pillow
\ No newline at end of file