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LCD Display

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Table 2.1., Pin assignment for <= 80 character displays  Pin number Symbol Level   I/O Function

    1 Vss - - Power supply (GND)
    2 Vcc - - Power supply (+5V)
    3 Vee - - Contrast adjust
    4 RS 0/1 I 0 = Instruction input    1 = Data input
    5 R/W 0/1 I 0 = Write to LCD module 1 = Read from LCD module
    6 EN 1, 1->0 I Enable signal
    7 DB0 0/1 I/O Data bus line 0 (LSB)
    8 DB1 0/1 I/O Data bus line 1
    9 DB2 0/1 I/O Data bus line 2
   10 DB3 0/1 I/O Data bus line 3
   11 DB4 0/1 I/O Data bus line 4
   12 DB5 0/1 I/O Data bus line 5
   13 DB6 0/1 I/O Data bus line 6
   14 DB7 0/1 I/O Data bus line 7 (MSB)

LCD pin number4611121314
LCD pin name RS EN DB4 DB5 DB6 DB7
Arduino pin # 7 8 9 10 11 12

HUSK: Display Pin 5 R/W lægges til GND

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