MIKROE-1385 mikroElektronika, MIKROE-1385 Datasheet - Page 26

• Manufacturer Part Number: MIKROE-1385
• Description: Development Boards & Kits - AVR EASY AVR V7 DEVELOPMENT SYSTEM
• Manufacturer: mikroElektronika

Specifications of MIKROE-1385

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: ATMEGA32 Devices
• Core: AVR
• Interface Type: mikroBUS socket, RS-232, USB
• Operating Supply Voltage: 3.3 V, 5 V
• Data Bus Width: 8 bit
• Dimensions: 266 mm x 220 mm
• For Use With: MIKROE-240, MIKROE-55

example from 0-5V, can be divided into 1024 discrete steps of about 4.88mV.
EasyAVR
any of the 12 supported analog input pins.
page 26
Figure 16-2:
Schematic of ADC
input
DATA BUS
™
v7 provides an interface in form of two potentiometers for simulating analog input voltages that can be routed to
represented with 10 bits, which converted to integer is 2
AVR® microcontrollers have 10-bit resolution, meaning that maximum value of conversion can be
Resolution is represented in maximum number of bits that resulting number occupies. Most
voltage range can be divided into. It determines the sensitivity of the A/D converter.
is resolution. Resolution represents the number of discrete steps that supported
important parameter if you need fast data acquisition. The other parameter
analog voltage be represented in form of a digital number. This is an
time and resolution. Conversion time determines how fast can an
the most important parameters of A/D converters are conversion
have A/D converters connected to one or more input pins. Some of
the input voltage value. Most microcontrollers nowadays internally
number. The value of this number is linearly dependent on
into a digital representation, usually in form of an integer
specialized circuits which can convert analog signals (voltages)
have any value within defined range. A/D converters are
Analog signals, on the other hand, are continuous, and can
Digital signals have two discrete states, which are decoded
as high and low, and interpreted as logic 1 and logic 0.
ADC inputs
PB0
PB2
PD6
PB4
PB5
PC3
PB1
PB3
PD7
PC4
PA5
PA6
10
=1024. This means that supported voltage range, for
J3
J4
C10
100nF
C4
100nF
R17
R29
220
220
P1
10K
P3
10K
VCC-BRD
VCC-BRD
Figure 16-1: use J3 and J4 jumpers to
connect analog input lines
In order to connect the output of the
potentiometer P1 to PB0, PB2, PD6,
PB4, PB5 or PC3 analog microcontroller
inputs, you have to place the jumper J3
in the desired position. If you want to
connect potentiometer P3 to any of the
PB1, PB3, PD7, PC4, PA5 or PA6 analog
microcontroller inputs, place jumper J4
in the desired position. By moving the
potentiometer knob, you can create
voltages in range from GND to VCC-BRD.
Enabling ADC inputs
EasyAVR
v7