Nano – LCD 1602 – Funktionstest

Anschluss vom Nano:
Anode = 5V
Kathode = GND
D2 Nano = D7 an LCD
D3 Nano = D6 an LCD
D4 Nano = D5 an LCD
D5 Nano = D4 an LCD
D11 Nano = E an LCD
D12 Nano = RS an LCD



Anschluss des Potentiometer:
Links = GND
Mitte = V0 an LCD
Rechts = 5V

Anschluss des Widerstand (10K) von 5V an A am LCD

Anschluss des LCD:
VSS = GND
VDD = 5V
V0 = Mitte Potentiometer
RS = D12 am Nano
RW = GND
E = D11
D0 bis D3 = nicht belegt
D4 = D5 am Nano
D5 = D4 am Nano
D6 = D3 am Nano
D7 = D2 am Nano
A = Widerstand
K = GND

Codebeispiel zum testen:

/*
  LiquidCrystal Library - display() and noDisplay()

 Demonstrates the use a 16x2 LCD display.  The LiquidCrystal
 library works with all LCD displays that are compatible with the
 Hitachi HD44780 driver. There are many of them out there, and you
 can usually tell them by the 16-pin interface.

 This sketch prints "Hello World!" to the LCD and uses the
 display() and noDisplay() functions to turn on and off
 the display.

 The circuit:
 * LCD RS pin to digital pin 12
 * LCD Enable pin to digital pin 11
 * LCD D4 pin to digital pin 5
 * LCD D5 pin to digital pin 4
 * LCD D6 pin to digital pin 3
 * LCD D7 pin to digital pin 2
 * LCD R/W pin to ground
 * 10K resistor:
 * ends to +5V and ground
 * wiper to LCD VO pin (pin 3)

 Library originally added 18 Apr 2008
 by David A. Mellis
 library modified 5 Jul 2009
 by Limor Fried (http://www.ladyada.net)
 example added 9 Jul 2009
 by Tom Igoe
 modified 22 Nov 2010
 by Tom Igoe
 modified 7 Nov 2016
 by Arturo Guadalupi

 This example code is in the public domain.

 http://www.arduino.cc/en/Tutorial/LiquidCrystalDisplay

*/

// include the library code:
#include <LiquidCrystal.h>

// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("Hallo Michael");
}

void loop() {
  // Turn off the display:
  lcd.noDisplay();
  delay(500);
  // Turn on the display:
  lcd.display();
  delay(500);
}
Der Akku liegt nur drauf um das Kabel herunter zu drücken.



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