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
2
23
3
page
EasyAVR
USB
4
EasyAVR4 User
’
s Manual
MikroElektronika
Development
tools
LL
CC
DD
22
XX
11
66
II
NN
88
--
BB
IITT
MM
OO
DD
EE
A
TMEGAxxxx
PB1
PB2
PB3
PB4
PD1
PD2
PB5
PB6
PB7
PD4
PD5
PD6
PC1
PC0
PD7
PC2
PC3
PC4
PC5
PC6
PC7
PA7
PA6
PA5
PA4
PA3
PA2
PA0
PA1
PD3
PB0
PD0
RST
VCC
GND
XT2
XT1
AREF
AGND
AVCC
VCC
OSCILLATOR
10K
Reset
100n
VCC
P1 10K
Vee
Vo
Contrast
Adjustment
J8
GRAPH.
CHAR.
R/W
E
D7
D6
D5
D4
D3
D2
VCC
LCD8 contrast
selected
GLCD and LCD8
contrast not selected
GLCD contrast
selected
VCC
RS
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
E
R/W
RS
VEE
VCC
GND
1
14
LCD Display
8-bit mode
PA
7
PA
6
PA
5
PA
4
PA
3
PA
2
PA
1
PA
0
PD6
PD5
PD4
Figure 30.
LCD 8-bit mode schematic
Leave two free
pins to the left side
Leave four free pins
to the right side
In order to enable LCD,
jumper J8 should be set to
the lower position, labeled
as CHAR.
