MIKROE-415 mikroElektronika, MIKROE-415 Datasheet - Page 15

• Manufacturer Part Number: MIKROE-415
• Description: Development Boards & Kits - AVR EASYAVR6 DEVELOPMENT SYSTEM
• Manufacturer: mikroElektronika

Specifications of MIKROE-415

• Tool Type: AVR Development Board
• Interface Type: RS-232, USB, JTAG UART
• Dimensions: 265 mm x 220 mm
• Operating Supply Voltage: 9 V to 32 V
• Lead Free Status / Rohs Status: Details

EasyAVR6 Development System
EasyAVR6 Development System
11.0.
11.0. A/D Converter Test Inputs
An A/D converter is used for converting an analog signal into the appropriate digital value. A/D converter is linear, which means that the
converted number is linearly dependent on the input voltage value.
The A/D converter within the microcontroller converts an analog voltage value into a 10-bit number. Voltages varying from 0V to 5V DC
may be supplied through the A/D test inputs. Jumper J12 is used for selecting some of the following pins PA0, PA1, PA2, PA3 or PA4. The
R63 resistor has a protective function as it is used for limiting current fl ow through the potentiometer or the microcontroller pin. The value
of the input analog voltage can be changed linearly using potentiometer P1 (10k).
Figure 11-1: ADC (default
jumper positions)
Figure 11-4: AVR microcontroller in DIP40 package and A/D converter
test inputs connection
NOTE:
PA0 is A/D input
A/D Converter Test Inputs
In order to enable the microcontroller to accurately perform A/D conversion, it is necessary to turn off LED diodes and
pull-up/pull-down resistors on port pins used by the A/D converter.
VCC
DIP40
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
RESET
VCC
GND
XTAL2
XTAL1
PD0
PD1
PD2
PD3
PD4
PD5
PD6
AREF
AVCC
GND
PC7
PC6
PC5
PC4
PC3
PC2
PC0
PD7
PA0
PA2
PA3
PA4
PA5
PA6
PA7
PC1
PA1
Figure 11-2: The PA0 pin
used as A/D conversion input
VCC
J12
Top view
220R
R63
VCC
P1
10K
P1
10K
Figure 11-3: AVR microcontroller in DIP14 package and A/D converter
test inputs connection
Figure 11-5: AVR microcontroller in DIP20B package and A/D con-
verter test inputs connection
PA0 is A/D input
PA0 is A/D input
VCC
VCC
DIP14
DIP 0
VCC
PB0
PB1
PB3
PB2
PA7
PA
PB0
PB1
P
P
V
G
P
P
P
P
B2
B3
CC
B4
B5
B6
B7
ND
6
2
A
A
GND
GND
VCC
PA0
PA2
PA3
PA4
P
P
PA1
PA2
P
P
P
P
PA1
P
A5
A0
A3
A5
A6
A7
A4
VCC
J12
J12
Top view
Top view
220R
220R
R63
R63
MikroElektronika
P1
10K
VCC
P1
10K
VCC
P1
10K
P1
10K
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