MIKROE-1205 mikroElektronika, MIKROE-1205 Datasheet - Page 31

• Manufacturer Part Number: MIKROE-1205
• Description: Development Boards & Kits - PIC / DSPIC EasyPIC FUSION v7 dsPIC33 PIC24 PIC32
• Manufacturer: mikroElektronika

Specifications of MIKROE-1205

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: PIC24x, dsPIC33x, PIC32MX4xx, PIC32MX7xx
• Interface Type: CAN, I2C, SPI
• Operating Supply Voltage: 7 V to 23 V
• Data Bus Width: 16 bit, 32 bit
• Dimensions: 266 mm x 220 mm
• For Use With: PIC24x, dsPIC33x, PIC32MX4xx, PIC32MX7xx

Touch Panel
controller
Touch panel is a glass panel whose surface is covered
with two layers of resistive material. When the screen is
pressed, the outer layer is pushed onto the inner layer
and appropriate controllers can measure that pressure
and pinpoint its location. This is how touch panels can
be used as an input devices. EasyPIC Fusion
Enabling Touch panel
Touch panel is enabled using SW11.5,
SW11.6, SW11.7 and SW11.8 switches.
They connect TOP and LEFT lines of the touch
panel with PB14 and RB15 analog inputs,
and BOTTOM and RIGHT with PB2 and PB3
digital outputs on microcontroller sockets.
Make sure to disconnect other peripherals, LEDs
and additional pull-up or pull-down resistors
from the interface lines so they do not interfere
with signal/data integrity.
v7
Figure 17-2:
Turn on
switches 5
through 8 on
SW11 to enable
Touch panel
controller
™
v7 is
equipped with touch panel controller and connector for
4-wire resistive touch panels. It can very accurately
register pressure at a specific point, representing the
touch coordinates in the form of analog voltages, which
can then be easily converted to X and Y values. Touch
panel comes as a part of TFT 320x240 display.
Figure 17-1:
Touch Panel
controller and
connection schematic
TOP
LEFT
VCC-3.3V
VCC-3.3V
VCC-3.3V
R70
300K
R77
300K
E14
10uF
C43
47nF
C44
47nF
21
1
24
GLCD-TFT SOCKET
20
CN32
BOTTOM
RIGHT
TOP
LEFT
SW11
page 31
RB2
RB3
RB14
RB15