diff --git a/demo/gpio2/main.go b/demo/gpio2/main.go
new file mode 100644
index 0000000..c675f19
--- /dev/null
+++ b/demo/gpio2/main.go
@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+	"game-driver/internal/routes/play/card_pusher"
+	"game-driver/logger"
+	"github.com/warthog618/go-gpiocdev/device/rpi"
+	"time"
+)
+
+func main() {
+	logger.DefaultLogger()
+	defer logger.Sync()
+
+	device, err := card_pusher.New(&card_pusher.LineGroup{
+		Name:  "gpiochip0",
+		OutOK: rpi.GPIO6,
+		Lower: rpi.GPIO13,
+		Error: rpi.GPIO19,
+		Empty: rpi.GPIO26,
+		Push:  rpi.GPIO11,
+		Reset: rpi.GPIO22,
+		Pull:  rpi.GPIO27,
+	})
+	if err != nil {
+		fmt.Println("打开 GPIO 设备失败:", err)
+		return
+	}
+	defer device.Close()
+
+	for {
+		var userInput string
+		fmt.Println("按 o/p/r 发送信号")
+		_, _ = fmt.Scanln(&userInput)
+
+		if userInput == "o" {
+			device.PushCard()
+		}
+		if userInput == "p" {
+			device.PullCard()
+		}
+		if userInput == "r" {
+			device.Reset()
+		}
+
+		time.Sleep(1 * time.Second)
+	}
+}
diff --git a/docs/继电器LH-04.zip b/docs/继电器LH-04.zip
new file mode 100755
index 0000000..4782d55
Binary files /dev/null and b/docs/继电器LH-04.zip differ