Data Sheet

IOREF
RESET
RESET
7-15V
SCL
SDA
AREF
GND
13
12
~11
~10
~9
8
7
~6
~5
4
~3
2
1
0
TX RX
13
3.3V
5V
GND
GND
VIN
A0
A1
A2
A3
A4
A5
POWER ANALOG IN
DIGITAL (PWM~)
ON
ISP
TX
RX
START SOMETHING
+ –
+ –
+ –
+ –
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
abcde fghij
abcde fghij
+ - + -
+ - + -
HOOKUP GUIDE
READY TO START HOOKING EVERYTHING UP? Check out the circuit diagram and
hookup table below to see how everything is connected.
73 : circuit 4a
JUMPER WIRES
5V
to
5V GND
to
GND (-) D8
to
E28 D9
to
E27
D10
to
E26 D11
to
E25 D12
to
E20 D13
to
E18
E30
to
GND (-) E29
to
5V(+) E19
to
GND (-) E16
to
5V(+)
E15
to
GND (-) E9
to
E17 E8
to
GND (-) E10
to
5V(+)
LCD DISPLAY
A15-A30
(pin 1 on A15)
POTENTIOMETER
A8
+
A9
+
A10
KNOW YOUR
LCD PINS
 Ground
 VDD(5V)
 Pin3 Contrast adjust (0–5V)
 Register Select
5 Read/Write Select
 Enable
 Data lines d0 (not used)
 Data lines d1 (not used)
 Data lines d2 (not used)
 Data lines d3 (not used)
 Data lines d4 (4-bit data transfer)
 Data lines d5 (4-bit data transfer)
 Data lines d6 (4-bit data transfer)
 Data lines d7 (4-bit data transfer)
 Backlight power (5V)
 Backlight Ground (GND)
SIK v4 Book Oct 13.indb 73 10/18/17 10:01 AM