MIKROE-798 mikroElektronika, MIKROE-798 Datasheet - Page 24

• Manufacturer Part Number: MIKROE-798
• Description: Development Boards & Kits - PIC / DSPIC EASYPIC v7 DEVELOPMENT SYSTEM
• Manufacturer: mikroElektronika

Specifications of MIKROE-798

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: PIC18F45K22
• Core: PIC
• Interface Type: RS-232, USB
• Operating Supply Voltage: 5 V
• Description/function: Development board only, touch screen, pencil, DS1820, LCD, serial cable, GLCD not included
• Dimensions: 266 mm x 220 mm

VCC-5V
page 24
P4
10K
VCC-5V
IMPORTANT:
R93
56
to perfectly and firmly fit into place.
Make sure to turn off the power supply before placing LCD onto
the board. Otherwise your display can be permanently damaged.
designed plastic display distancer, which allows the LCD module
Q11
BC846
through CN7 display connector. Board is fitted with uniquely
matrix. Communication with the display module is done
Figure 11-2: 2x16 LCD
connection schematic
R89
4K7
consisted of 16 character fields. Each field is a 7x5 pixel
CN7
LCD SOCKET
LCDs in 4-bit mode. This type of display has two rows
VCC-MCU
necessary interface for supporting 2x16 character
fields. EasyPIC
LCD-GLCD BPWM
custom characters in the predefined number of
R10
1K
LCDs can be used to represent standard and
end user of some electronic device. Character
popular way of representing information to the
Liquid Crystal Displays or LCDs are cheap and
LCD 2x16 characters
™
LCD-GLCD BPWM
v7 provides the connector and the
LCD-GLCD BCK
Standard and PWM-driven back-light
We have allowed LCD back-light to be enabled in two different
ways:
1. It can be turned on with full brightness using SW4.6 switch.
2. Brightness level can be determined with PWM signal from the
IMPORTANT:
microcontroller, allowing you to write custom back-light controlling
software. This back-light mode is enabled with SW4.5 switch.
DATA BUS
SW4
VCC-5V
In order to use PWM back-light both SW4.5 and SW4.6 switches must
be enabled at the same time.
RC2
Figure 11-1: On-board LCD 2x16 display connector
Connector pinout explained
GND and VCC
Vo
RS
E
R/W
always connected to GND, leaving the display in Write mode all
the time.
D0–D3
the data byte interface is connected to GND.
D4–D7
LED+
LED-
- Display Enable line
- LCD contrast level from potentiometer P4
- Register Select Signal line
- Determines whether display is in Read or Write mode. It’s
- Connection with the back-light LED cathode
- Connection with the back-light LED anode
- Upper half of the data byte
- Display is supported in 4-bit data mode, so lower half of
- Display power supply lines