M I K R O E L E K T R O N I K A S O F T W A R E A N D H A R D W A R E S O L U T I O N S F O R T H E E M B E D D E D W O R L D
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19
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dsPICPRO
USB
3
dsPICPRO3 User
’
s Manual
MikroElektronika
Development tools
LL
CC
DD
22
XX
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44
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IITT
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EE
Standard character LCD is probably the most widely used data visualization
component.Normally, it can display two lines of 16 alphanumeric characters, each charac-
ter made of 5x8 pixels. Character LCD communicates with microcontroller via 4-bit data
bus. A connection to microcontroller is shown in Fig. 22 where there are only four data
lines. It is very important to turn the power off before you place or remove LCD from
dsPICPRO3.
LCD 2X16 IN 4-BIT MODE
P1
10K
Contrast
Adjustment
VCC
RS
RG15
RC1
RC2
RC3
RC4
RG6
RG7
RG8
MCLR
RG9
Vss
Vdd
RA12
RA13
RB5
RB4
RB3
RB2
RB1
RB0
RC14
RC13
RD0
RD11
RD10
RD9
RD8
RA15
Vss
OSC2
OSC1/CLKI
Vdd
RG2
RG3
RF6
RF7
RF8
RF2
RF3
RB6 RB7
RA9
RA10 A
Vdd
A
Vss
RB8
RB9
RB1
1
Vss
Vdd RB12
RB13
RB14
RB15
RD14
RD15
RF4
RF5
RG13 RG12
RG14
RA7 RA6
RG0
RG1
RF1
Vdd
Vss
RD7 RD6
RD5
RD4
RD13
RD12
RD3
RD2
RD1
dsPIC30FXXXX
RF0
RB10
RA14
D4
D5
E
D6
D7
1
ON
4
3
2
58
7
6
RF6
RA12
RG9
SW2
RA15
RA14
DQ
GLCD BCK
LCD BCK
LED RGH
RTC INT
MMC CS
ETH WOL
ETH INT
VCC
R48
10
D7
D6
D5
D4
D3
D2
D1
D0
E
R/W
RS
VEE
VCC
GND
1
16
LCD4 Display
mikroElektronika
A
K
RD7
RD6
RD5
D4
RB6
RB4
A
K
RD4
VCC
Vee
Figure 21.
Figure 22.
LCD 2x16 in 4-bit mode
LCD 2x16 in 4-bit mode schematics
2x16 LCD
2x16 LCD
2x16 LCD
CONNECTOR
2x16 LCD
CONNECTOR
ON-BOARD
ON-BOARD
