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961
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1 /*
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2 * Displays text sent over the serial port (e.g. from the Serial Monitor) on
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3 * an attached LCD.
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4 */
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5 #include <Wire.h>
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6 #include <LiquidCrystal_I2C.h>
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7
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8 #define BACKLIGHT_PIN 13
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9
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10 LiquidCrystal_I2C lcd(0x38); // set the LCD address to 0x38
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11
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12 void setup()
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13 {
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14 pinMode ( BACKLIGHT_PIN, OUTPUT );
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15 lcd.begin (16,2);
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16 digitalWrite ( BACKLIGHT_PIN, HIGH );
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17
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18 Serial.begin(57600);
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19 }
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20
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21 void loop()
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22 {
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23 // when characters arrive over the serial port...
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24 if (Serial.available())
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25 {
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26 // wait a bit for the entire message to arrive
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27 delay(100);
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28 // clear the screen
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29 lcd.clear();
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30 // read all the available characters
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31 while (Serial.available() > 0)
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32 {
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33 // display each character to the LCD
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34 lcd.write(Serial.read());
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35 }
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36 }
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37 }
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