RAKwireless Technology RAK41X Wi-Fi Module User Manual
Shenzhen Rakwireless Technology Co., Ltd. Wi-Fi Module
User manual
RAK49X Datasheet
2
Content
RAK49X WIFI Module ............................................................................................................ 1
1 Overview ........................................................................................................................................ 1
1.1 Module Overview................................................................................................................ 1
1.2 Key Applications ................................................................................................................. 1
1.3 Device Features ................................................................................................................... 1
1.4 RAK49X System Diagram .................................................................................................. 2
2 Functional Description ................................................................................................................... 3
2.1 HW Interface ....................................................................................................................... 3
2.2 Wireless Driver ................................................................................................................... 3
2.3 TCP/IP ................................................................................................................................. 3
2.4 Power Consumption ............................................................................................................ 3
3 Hardware Introduction ................................................................................................................... 4
3.1 Top and Bottom View.......................................................................................................... 4
3.2 Pin Definition ...................................................................................................................... 4
3.3 Design Reference ................................................................................................................ 5
3.4 RAK49X PCB Mechanical Size ......................................................................................... 6
3.5 Reflow Soldering Temperature Graph ................................................................................ 7
3.6 Baking Instructions ............................................................................................................. 7
4 Electrical Characteristics ................................................................................................................ 8
4.1 Absolute Maximum ............................................................................................................. 8
4.2 Recommended Operating Parameters ................................................................................. 8
4.3 RF Electrical Characteristics ............................................................................................... 8
4.4 MCU Reset ........................................................................................................................ 10
5 Order Information ........................................................................................................................ 11
RAK49X Datasheet
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5.1 Products ............................................................................................................................. 11
5.2 Description ........................................................................................................................ 11
5.3 Size .................................................................................................................................... 11
6 Sales and Service ......................................................................................................................... 12
7 Revision History .......................................................................................................................... 13
FCC STATEMENT : ...................................................................................................................... 14
FCC Radiation Exposure Statement: ........................................................................................ 14
RAK415 Data sheet
1
1 Overview
1.1 Module Overview
RAK49X module is a Wi-Fi module that fully compliant with IEEE 802.11b/g/n wireless
standards, with internally integrated TCP / IP protocol stack, supporting numerous protocols such
as ARP, IP, ICMP, TCP, UDP, DHCP CLIENT, DHCP SERVER, DNS and other etc. It supports
AP mode, Station mode and Ad-hoc and mode. Users can easily and quickly use it to networking
and data transmission. Through SPI interface, the module’s maximum transmission rate is up to
2Mbps.
RAK49X supports storing parameters, and by the customer commands it determines whether
to enable automatic networking to realize easy networking and reduce time for system to
networking. The module has built-in WEB server, supporting wireless network parameters
configuration, supporting wireless firmware upgrade. It also supports WPS and EasyConfig
one-key networking, significantly reducing software development effort.
RAK49X has four power management modes, among which the minimum standby power
consumption is 2uA, fully meet customer’s requirement for low power design.
1.2 Key Applications
• Portable products
• Home appliances and electrical
appliances
• Industrial sensors
• Sales terminals
• Buildings automation
• Logistics and freight
management
• Home security and automation
• Medical applications, such as
patient monitoring, medical
diagnostics
• Metering (stop timing,
measuring instruments, meters,
etc.)
1.3 Device Features
• Support IEEE 802.11b/g/n wireless standards
• Support four-wire SPI interface
RAK49X Datasheet
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• Support SPI Clock up to Maximum 16Mhz
• Minimalist hardware peripheral circuit design
• Support Station, Ad-hoc and AP modes
• Support DHCP SERVER / DHCPCLIENT
• Support OPEN, WEP, WPA-PSK, WPA2-PSK and WPS encryption
• Support TCP, UDP protocols, with maximum 8 UDP/TCP connections
• Support webpage-based parameter configuration
• Support WPS and EasyConfig one-key to network connection
• Support parameter storage, customer orders loading after boot
• Support parameters store in Deep Sleep State, with connection time as fastest as 300ms
• Support wireless upgrade firmware
• On-board ceramic antenna or U.FL antenna connector
• Operating voltage: 3.3V
• 4 kinds power working modes, with minimum power consumption as1~2uA
• Small package size: 28.75mmX23.14mmX3.40mm
• FCC, RoHS and CE compliant
1.4 RAK49X System Diagram
Figure 1-1 RAK49X System Diagram
RAK49X Datasheet
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2 Functional Description
2.1 HW Interface
Support clock 16MHz Maximum
Interface actual throughput up to 2Mbps
Four-wire SPI interface, support SPI data interrupt pin
2.2 Wireless Driver
Compliant with IEEE 802.11b/g/n standards
Support AP、STA 、AD-HOC Mode
Support WEP, WPA/WPA2-PSK encryption
Fast networking, allowing module to be added to network within
1 sec after power up
Support WPS and EasyConfig one-key to network connection
Support wireless configuration and firmware upgrade
2.3 TCP/IP
DHCP Client and Server features
DNS Client and Server functions
TCP Client, TCP Server, UDP Client, UDP Server and Multicast functions
8-way socket applications
2.4 Power Consumption
The module supports four power consumption modes:
Full speed working mode, with approx 80mA average power consumption,
peak current less than 200mA
Power-saving mode, with approx 10ma average power consumption, peak
current <200mA, DTIM = 100ms
Deep sleep mode, with approx 5mA average power consumption, peak
current <200mA, DTIM = 100ms
Standby mode, with power consumption<2uA
RAK49X Datasheet
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3 Hardware Introduction
3.1 Top and Bottom View
Figure 3-1 RAK49X Top View Figure 3-2 RAK49X Bottom View
3.2 Pin Definition
Table 3-1: Pin Definition
Pin Serial No. Name Type Description
1,2,5,12,13,14,36 GND Ground connected to ground pad or the copper
35 VCC3V3 Power 3.3V power supply
18 LINK O，PU
"0" - STA connected in AP mode,
Connected to router in STA mode
"1" - disconnected
Remain disconnected when no use
19 RESET I，PU Module reset pin, low effective
27 SPI_INT O
SPI mode interrupt pin
“0”——idle level
“1”——has data sent to host
31 SPI_MISO O SPI slave: data of SPI Master Input, Slave
Output
32 SPI_MOSI I SPI slave: data of SPI Master Output, Slave
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Input
33 SPI_CLK O SPI slave: SPI clock input
34 SPI_CS I SPI slave: SPI chip select input
Others NC NC Remain disconnected when no use
Note:
1. I – input O - output PU – pulling up PD - pulling down NC - not connected
2. Pin in NC, remain disconnected
3.3 Design Reference
Figure 3-3 Module Typical Design Reference
Note: Upon SPI interface, the value of R3 depends on output resistance of host and PCB trace
resistance, the default value is 33 Euro.
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3.4 RAK49X PCB Mechanical Size
Figure 3-4: PCB Mechanical Size (mm)
RAK49X Datasheet
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3.5 Reflow Soldering Temperature Graph
Figure 3-5: Temperature Graph
Note:
As shown in Figure 3-5, it is based on the SAC305 lead-free tin paste (3% silver, 0.5%
copper). Alpha OM-338 lead-free cleaning-free flux is recommended. The Figure 6 is mainly used
for guidance. The entire process time is subject to thermal pad number of assembly board and
device Intensity.
3.6 Baking Instructions
The RAK49X module is very sensitive to water. Be cautious to baking the device. At ambient
conditions, it is required that within 168 hours removed from the vacuum packaging, the module
should be processed with the circuit board assembly by reflow soldering; Or stored in the
environment with a relative humidity below 10%. If the condition is not satisfied, the RAK49X
must be processed with a 9-hour baking in the environment of 125 ℃before the reflow soldering.
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4 Electrical Characteristics
4.1 Absolute Maximum
The following table shows the absolute maximum. Note that the module device may be
damaged when exceeds the maximum. To avoid damages to the module and the device,please
operate under specified conditions.
Table 4-1: Parameters and Value Range
Parameters Symbols Value Unit
External supply voltage VCC3V3 -0.3~4.0 V
Maximum RF Input (Reference: 50Ω) RFin +10 dBm
When voltage is 3.3V, IO Max voltage 3V3VinIOMax VCC+0.3 V
When voltage is 3.3V, IO Min voltage 3V3VinIOMin -0.3 V
Storage ambient temperature Tstore -65~+135 ℃
ESD resistance ESDHBM 2000 V
4.2 Recommended Operating Parameters
Table 4-2: Recommended Operating Parameter Range
Parameters Symbols Min Value Typical Value Max Value Unit
External voltage Vcc 3.14 3.3 3.46 V
Ambient
temperature Tambient -40 -- +85 ℃
4.3 RF Electrical Characteristics
• RF Transmit Specifications
Table 4-3: Partial RF Transmit Specifications
Symbol Parameter Conditions Typical Value Unit
Ftx Frequency range -- 2.4 GHz
Pout Output power -- -- --
802.11b 1Mbps 17 dBm
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802.11g 6Mbps 17 dBm
802.11n,HT20 MCS0 17 dBm
802.11g,EVM 54Mbps 14 dBm
802.11n,HT20EVM MCS7 10 dBm
• RF Receiver Specifications
Table 4-4: Partial Receiver Specifications
Parameter Parameter Test conditions Typical Value Unit
Receiver
sensitivity
11b,1Mbps -97 dBm
11b,2Mbps -92 dBm
11b,5.5Mbps -90 dBm
11b,11Mbps -88 dBm
11g,9Mbps -91 dBm
11g,18Mbps -87 dBm
11g,36Mbps -81 dBm
11g,54Mbps -75 dBm
11n,MCS1,13Mbps -89 dBm
11n,MCS3,26Mbps -82 dBm
11n,MCS5,52Mbps -75 dBm
11n,MCS7,65Mbps -72 dBm
Maximum input
signal
CH7 11g,54Mbps 10 dBm
Adjacent channel
6Mbps 37 dBc
54Mbps 21 dBc
MCS0 38 dBc
MCS7 20 dBc
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4.4 MCU Reset
Figure 4-1 shows the MCU reset timing diagram and reset pulse length. When power on the
module or an exception occurs, the module needs to be reset. RESET pin is internally pulled up,
low input is effective.
3.3V IO Supply
MCU_RESET
TRESET
Figure 4-1: MCU Reset Timing
Table 4-5 shows the description of MCU reset parameters.
Table 4-5: MCU Reset Parameter
Symbol Description typical（mS）
TRESET MCU reset pulse length >10
RAK49X Datasheet
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5 Order Information
5.1 Products
Table 5-1: Product Models
Product Description Single Tray
Packing
Minimum
Package
Development board
corresponding model
RAK49XAS-XXX
X
SPI interface module,
with on-board antenna
27pcs/tray 270pcs RAK49XAS_EVB
RAK49XBS-XXX
X
SPI interface module,
with external antenna
27pcs/tray 270pcs RAK49XBS_EVB
5.2 Description
RAK 4X X X XXXX
Customer version
Reserve： ST01
Package Type
L: bend pin
I: Straight pin
X: No pin
S： SMD Stamp
Interface
1： SPI module
2： secondary development
3： UART AT command module
5： UART transparent transmission
Device family
4X
Company Name
RAK wireless
X
Antenna Type
A： Internal Antenna
B： External Antenna
5.3 Size
Packaging: Hard plastic pallets
Weight: <=3.00g/pcs
Table 5-2: Thickness (Height)
RAK49X Thickness (Height)
Without shield holder 2.85±0.05mm
With shield holder 2.95±0.05mm
With shield 3.30±0.15mm
Note: In considering height design of the product, please consider your motherboard
thickness error and product fit gap (recommended 0.10-0.15mm).
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6 Sales and Service
Beijing
FAE mailbox: allan.jin@rakwireless.com
Tel : 010-62716015
Fax: 010-62716015
Address: Room 1108, Jin Yanlong Building, Xisanqi Desheng Gate, Haidian District, Beijing
Shanghai
FAE mailbox: steven.tang@rakwireless.com
Tel : 021-54721182
Fax: 021-54721038
Address: Room 306, Ran East Business Center 1 Building, No.150, 2161 Lane, Wanyuan road,
Minhang District, Shanghai
Shenzhen
FAE mailbox: vincent.wu@rakwireless.com
Tel：0755-26506594
Fax：0755-86152201
Address: Room 406, Tsinghua information comprehensive building, Nanshan Science Park North
District , Shengzhen
RAK49X Datasheet
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7 Revision History
Version Modifications Date
V1.0 Initial Draft 2013-12-08
V1.1 Modified Sales and Service section 2014-01-12
V1.2 Modified partial text editing 2014-04-16
V1.3 Added WPS function 2014-08-20
V1.4 Add module packet
Reference design to add a reset circuit and pull up for serial
port
2015-02-27
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FCC STATEMENT :
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may
cause undesired operation.
Warning: Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance
20cm between the radiator & your body.
FCC INFORMATION (additional)
OEM INTEGRATION INSTRUCTIONS:
This device is intended only for OEM integrators under the following conditions: The module must be
installed in the host equipment such that 20 cm is maintained between the antenna and users, and the
transmitter module may not be co-located with any other transmitter or antenna. The module shall be only
used with the internal antenna(s) that has been originally tested and certified with this module. As long as 3
conditions above are met, further transmitter test will not be required. However, the OEM integrator is still
responsible for testing their end-product for any additional compliance requirements required with this
module installed (for example, digital device emissions, PC peripheral requirements, etc.).
Validity of using the module certification:
In the event that these conditions cannot be met (for example certain laptop configurations or co-location
with another transmitter), then the FCC authorization for this module in combination with the host
equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product.
In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including
the transmitter) and obtaining a separate FCC authorization.
End product labeling:
This transmitter module is authorized only for use in device where the antenna may be installed such that
20 cm may be maintained between the antenna and users. The final end product must be labeled in a
visible area with the following: “Contains FCC ID: 2AF6B-RAK41X”.
Information that must be placed in the end user manual:
The OEM integrator has to be aware not to provide information to the end user regarding how to install or
remove this RF module in the user's manual of the end product which integrates this module. The end user
manual shall include all required regulatory information/warning as show in this manual.
This device must be kept away from all persons by 20cm or more and installations using less distance, or
installations using antennas with gain greater than that with which this was Certified will require additional
approvals.
Antenna Specification:
External Antenna: 2.0 dBi
Onboard Antenna: 0.5 dBi