mikroElektronika WiFi 4 click User manual

2 3
2. Soldering the headers
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into the 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 the
pins are aligned correctly,
push the board all the way
into the socket.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
Turn the board upside down so that
the bottom side is facing you upwards.
Place shorter pins of the header into the
appropriate soldering pads.
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.
4. Essential features
WiFi 4 click has a full featured TCP/IP protocol
stack with added web server and application
service capabilities. The additional GPIO
pins that line the edges of the board have
alternate functions like SPI, ADC, I2C,
DAC (although access to those functions
depends on the rmware version loaded in
the module). The SPWF01SA module has 1.5
MB of internal ash and 64 KB of RAM, and
can achieve up to +18 dBm of output power.
1
WiFi 4 click carries SPWF01SA, a complete
standalone WiFi module with a single-chip
802.11 b/g/n transceiver, a 32-bit STM32 MCU,
along with a built-in 2.4 GHz ISM band antenna.
The board communicates with the target MCU
through mikroBUS™ UART pins, with additional
functionality provided by Reset and Ready To
Send pins (in place of default mikroBUS™ RST
and CS pins). The board is also lined with 14
additional GPIO pins. Uses 3.3V power supply.
1. Introduction
WiFi 4 click manual
ver 1.01
0100000079805
WiFi 4 click
click
BOARD™
www.mikroe.com

AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.
GND
R1 2K2
GND
25
26
27
28 29 30
GPIO3 1
BOOT02
RESETn 3
GPIO8 4
GPIO10 5
TXD1 6
GPIO9 7
RXD18
CTS1_DN9
RTS1_DP 10
GPIO11 11
GPIO7
13 GPIO12 12
GPIO14
14
GPIO13
15
GPIO0
16
GPIO1
17
GPIO4
18
GPIO2
19
GPIO5
20
GPIO15
21
GPIO6
22
GND
23
3V3
24
U1 SPWF01SA
R5
470R
VCC-3.3V
R2
4K7
VCC-3.3V
R6
10K
C1
100nF
VCC-3.3VVCC-3.3V
BOOT
nRESET
TXD
RXD
CTS
RTS
CTSb
TXD
RXD
RTSb
nRESET
C2
100nF
VCC-3.3V
VCC-3.3V
GPIO3
GPIO8
GPIO9
GPIO11
GPIO12
R4
2K2
GPIO7
GPIO14
GPIO0
GPIO1
GPIO4
GPIO2
GPIO5
GPIO15
GPIO6
R7
10K
VCC-3.3V
C3
10uF
GPIO7
GPIO14
GPIO0
GPIO1
GPIO4
GPIO2
GPIO5
GPIO15
GPIO6
GPIO3
GPIO8
GPIO9
GPIO11
GPIO12
RTS CTS
CTS
RTS
CTSb
RTSb
VCC-3.3V
1
2
3
4
5
6
7
8
HD1
M1X8
1
2
3
4
5
6
7
8
HD2
M1X8
VCC-3.3V
C4
10uF
ACTIVE
LINK UP
PWR
8. Code examples
MikroElektronika oers free tech support
(www.mikroe.com/support) until the end of
the product’s lifetime, so if something goes
wrong, we’re ready and willing to help!
Once you have done all the necessary
preparations, it’s time to get your click board™
up and running. We have provided examples
for mikroC™, mikroBasic™and mikroPascal™
compilers on our Libstock website. Just
download them and you are ready to start.
.com
6. Dimensions
MikroElektronika assumes no responsibility
or liability for any errors or inaccuracies
that may appear in the present document.
Specication and information contained in
the present schematic are subject to change
at any time without notice.
Copyright © 2015 MikroElektronika.
All rights reserved.
mm mils
LENGTH 57.15 2250
WIDTH 25.4 1000
HEIGHT* 3.8 150
5. Schematic
7. SMD jumpers
9. Support
25.4 mm / 1000 mils
57.15 / 2250 mils
* without headers
10. Disclaimer
To enable access to CTS
and RTS pins, solder zero
ohm resistors to CTS and
RTS jumper. To update the
rmware, solder a zero-ohm
resistor to the BOOT jumper.