初始化提交

arduino-cli/libraries/LiquidCrystal_I2C/examples/SerialDisplay/applet/SerialDisplay.cpp

@@ -0,0 +1,48 @@
+/*
+ * Displays text sent over the serial port (e.g. from the Serial Monitor) on
+ * an attached LCD.
+ * DFRobot.com
+ */
+#include <Wire.h> 
+#include <LiquidCrystal_I2C.h>
+
+#include "WProgram.h"
+void setup();
+void loop();
+LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display
+
+void setup()
+{
+  lcd.init();                      // initialize the lcd 
+  lcd.backlight();
+  Serial.begin(9600);
+}
+
+void loop()
+{
+  // when characters arrive over the serial port...
+  if (Serial.available()) {
+    // wait a bit for the entire message to arrive
+    delay(100);
+    // clear the screen
+    lcd.clear();
+    // read all the available characters
+    while (Serial.available() > 0) {
+      // display each character to the LCD
+      lcd.write(Serial.read());
+    }
+  }
+}
+
+int main(void)
+{
+	init();
+
+	setup();
+    
+	for (;;)
+		loop();
+        
+	return 0;
+}
+