2. Soldering the headers
Before using your click board™, make sure
to solder 1x8 male headers to both left
and right side of the board. Two 1x8 male
headers are included with the board in
the package.
1
3
4. Essential features
4-20mA T Click™ with it’s
ADuM1411,
MCP4921
and
XTR116
IC’s is ideal for
using in field of industrial process control
and test systems. It serves as interface
between sensors or instruments (connected
to microcontroller) and controlled peripherals
in industrial standard current loop. The
board receives the input digital signal from
the microcontroller and sets the output loop
current (4-20mA).
4-20mA T
click
1. Introduction
2
Turn the board upside down so that
bottom side is facing you upwards. Place
shorter parts of the header pins in both
soldering pad locations.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
4-20mA T Click™ is an accessory board in
mikroBUS™
form factor. It’s a compact and
easy solution for adding 4-to-20mA industry
standard communication protocol to your
design. It features
ADuM1411
Quad-chanel
digital isolator,
MCP4921
12-bit DAC as well
as
XTR116
4-20mA current loop transmitter.
4-20mA T Click™ communicates with target
board microcontroller via three
mikroBUS™
SPI lines (SDI, SCK, CS). The board is designed
to use 3.3V and 5V power supply. LED diode
indicates the presence of power supply.
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into desired
mikroBUS™ socket. Make sure to align the
cut in the lower-right part of the board
with the markings on the silkscreen at the
mikroBUS™ socket. If all of the pins are
aligned correctly, push the board all
the way into the socket.
click
www.mikroe.com
4-20mA T click Manual
ver. 1.00
BOARD
0 100000 022139
5. 4-20mA T Click™ Board Schematic
6. SMD Jumper
VCC
C1
100nF
VCC
1
2
3
4
5
6
7
8
VCC_iso
There is one zero-ohm SMD jumper
J1
which
C2
100nF
GND_iso
U1
VDD1
GND1
ViA
ViB
ViC
VoD
CTRL1
GND1
VDD2
GND2
VoA
VoB
VoC
ViD
CTRL2
GND2
16
15
14
13
12
11
10
9
VCC_iso
is used to select whether 3.3V or 5V power
supply is used. Jumper
J1
is soldered in 3.3V
VCC_iso
1
2
3
4
U2
VDD
CS
SCK
SDI
VOUT
GND
VREF
LDAC
Vref
8
7
6
5
+3V3
+5V
CS#
SCK
SDI
position by default.
ADuM1411
SDI
ADuM1411
GND_iso
MCP4921
C3
100nF
C4 2.2uF
CS#
SCK
AN
RST
CS
SCK
MISO
MOSI
+3.3V
GND
PWM
INT
TX
RX
SCL
SDA
+5V
GND
!CS#
!SCK
!SDI
7. Code Examples
Once you have done all the necessary
preparations, it’s time to get your click
board up and running. We have provided
the examples for mikroC, mikroBasic and
mikroPascal compilers on our
Libstock
website. Just download them and you are
ready to start.
MIKROBUS DEVICE CONN.
GND_iso
VCC
+3V3
Vref
R1
100
VCC_iso
D1
Vref
Iin
Iret
Io
XTR116
Vreg
V+
B
E
8
7
6
5
10nF
SMBJ33A
BCP56
D2
CN2
J1
R3
2K2 +5V
LD1
GREEN
R2
20K
1
2
3
4
U3
.com
8. Support
MikroElektronika offers
Free Tech Support
(www.mikroe.com/esupport)
until the
end of product lifetime, so if something goes
wrong, we are ready and willing to help!
10uF
1N4007
D3
1N4007
D4
LOOP
Q1
E1
D5
C5
1N4007
1N4007
GND_iso
MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document.
Specification and information contained in the present schematic are subject to change at any time without notice. Copyright © 2012 MikroElektronika. All rights reserved.