MIKROE-1189 mikroElektronika, MIKROE-1189 Datasheet - Page 34

• Manufacturer Part Number: MIKROE-1189
• Description: Development Boards & Kits - PIC / DSPIC MIKROMEDIA FOR PIC WORKSTATION v7
• Manufacturer: mikroElektronika

Specifications of MIKROE-1189

• Rohs: yes
• Product: Development Systems
• Tool Is For Evaluation Of: PIC18FJ, dsPIC33, PIC24, PIC32
• Core: dsPIC, PIC
• Operating Supply Voltage: 3.3 V

to integer is 2
discrete steps of about 3.22mV.
mikromedia
voltages that can be routed to any of the 7 supported analog input pins of mikromedia
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resolution, meaning that maximum value of conversion can be represented with 10 bits, which converted
workStation v7 board provides an interface in form of two potentiometers for simulating analog input
10
=1024. This means that supported voltage range, for example from 0-3.3V, can be divided into 1024
number of bits that resulting number occupies. For example if microcontroller has 10-bit
VCC-3.3V
VCC-3.3V
determines the sensitivity of the A/D converter. Resolution is represented in maximum
number of discrete steps that supported voltage range can be divided into. It
P1
10K
P2
10K
Figure 14-2: Schematic of ADC input
acquisition. The other parameter is resolution. Resolution represents the
R1
220
R8
220
of a digital number. This is an important parameter if you need fast data
determines how fast can an analog voltage be represented in form
C1
100nF
C4
100nF
J2
J7
converters are conversion time and resolution. Conversion time
more input pins. Some of the most important parameters of A/D
nowadays internally have A/D converters connected to one or
G0.4
G0.3
G0.2
G0.1
G0.0
dependent on the input voltage value. Most microcontrollers
A1
A0
of an integer number. The value of this number is linearly
signals (voltages) into a digital representation, usually in form
converters are specialized circuits which can convert analog
and can have any value within defined range. A/D
logic 0. Analog signals, on the other hand, are continuous,
Digital signals have two discrete states, which are
decoded as high and low, and interpreted as logic 1 and
ADC inputs
DATA BUS
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board.
Figure 14-1: use J2 and J7 jumpers
to connect analog input lines with
potentiometers P1 and P2
In order to connect the output of the
potentiometer P1 to G0.0, G0.1, G0.2,
G0.3 or G0.4 analog mikromedia
you have to place the jumper J2 in the
desired position. If you want to connect
potentiometer P2 to A0 or A1 analog
mikromedia
in the desired position. By moving the
potentiometer knob, you can create
voltages in range from GND to VCC.
Enabling ADC inputs
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inputs, place jumper J7
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inputs,