MIKROE-419 mikroElektronika, MIKROE-419 Datasheet - Page 19

• Manufacturer Part Number: MIKROE-419
• Description: Development Boards & Kits - PIC / DSPIC BIGPIC6 DEVELOPMENT SYSTEM
• Manufacturer: mikroElektronika

Specifications of MIKROE-419

• Rohs: yes
• Product: Development Kits
• Core: PIC
• Interface Type: ICD, IDC10, JTAG, RS-232, USB
• Operating Supply Voltage: 9 V to 32 V
• Data Bus Width: 8 bit
• Description/function: Development Board Only, Touch Screen, Pencil, DS1820, LCD, Serial Cable, GLCD not included
• Dimensions: 265 mm x 220 mm
• For Use With: PIC

BigPIC6 Development System
BigPIC6 Development System
14.0.
14.0. Push Buttons
The logic state of all microcontroller digital inputs may be changed using the push buttons. Jumper J12 is used to determine the logic
state to be applied to the desired microcontroller pin by pressing the appropriate push button. The purpose of the protective resistor is
to limit the maximum current thus preventing a short circuit from occurring. If needed, advanced users may short such resistor using
jumper J13. Right next to the push buttons, there is a RESET button which is not connected to the MCLR pin. The reset signal is
generated by the programmer.
By pressing any push button when jumper J12 is in the VCC position, a logic one (5V) will be applied to the appropriate microcontroller
pin as shown in Figure 14-2.
Figure 14-2: Push buttons and port PORTB connection schematic
Jumper J12 in the VCC position
Bottom view
RSTbut
Botoom view
Top view
Top view
C
100nF
VCC
33
Push Buttons
VCC
R7
10K
RH2
RH3
RE1
RE0
RG0
RG1
RG2
RG3
MCLR
RG4
GND
VCC
RF7
RF6
RF5
RF4
RF3
RF2
RH7
RH6
Inside view
Inside view
Side view
Side view
RESET
PIC18Fxx
VCC
Push buttons used for
simulating digital inputs
Jumper J13 used for short-
ing protective resistor
Jumper J12 used for
selecting logic state to
be applied to the pin by
pressing button
VCC
RESET button
OSC2
OSC1
GND
VCC
RC5
RC4
RC3
RC2
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
RJ2
RJ3
RJ7
RJ6
VCC
RB7
RB6
Figure 14-1: Push buttons
RB5
RB4
RB3
RB2
RB1
RB0
0V
5V
J13
MikroElektronika
R58
220R
VCC
J12
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