WRTNODE7 MT7697module User Manual Beijing wanglianzhiyuan Tech Inc

Beijing wanglianzhiyuan Tech Inc MT7697module

FCC ID Filing: 2ALR4-WRTNODE7

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IoT module
DataSheet
WiFi/BLE/MCU all in one
FreeRTOS/Zephyr.kernel/Javascript software
http://7.wrtnode.cc
2017
1. Overview
wrtnode^7 is the standard module for MT7697, main feature as:
CPU: ARM Cortex M4 with FPU, up to 192MHz clock speed
WiF: 802.11 b/g/n, 2.4Ghz, up to 150bmps
Peripherals: UART * 2, SPI master / slave, I2C * 2, I2S, 4 * 12bit ADC, GPIO * 28, PWM * 28
Bluetooth: BLE 4.2
Storage: 32Mbite nor flash
Memory: 256KB SRAM
Power supply: 3.3V input
Working temperature: -35 ~ 85 ℃
Wrtnode ^ 7 is a product that meets the requirements of industrial temperature scenes.
MT7697 is a highly integrated Internet of things chip produced by the MTK, integrated MCU, 11n
WiFi, Bluetooth, power management unit.
MT7697 main parameters are as follows
Power management and clock source
Integrate high efficiency power management unit with single 3.3V power supply
input
40/26/52MHz source crystal clock support with low power operation in idle mode
Platform
ARM Cortex M4 MCU with FPU with up to 192MHz clock speed
Embedded 352KB SRAM and 64KB boot ROM
Supports external serial flash with Quad Peripheral Interface (QPI) mode
Supports eXecute In Place (XIP) on flash
32KB cache in XIP mode
Hardware crypto engines including AES, DES/3DES, SHA2 for network security
28 General Purpose IOs multiplexed with other interfaces
Two UART interfaces with hardware flow control and one UART for debug, all
multiplexed with GPIO
One SPI master interface multiplexed with GPIO
One SPI slave interface multiplexed with GPIO
Two I2C master interface multiplexed with GPIO
One I2S interface multiplexed with GPIO
Four channel 12-bit ADC multiplexed with GPIO
28 PWM multiplexed with GPIO
25 channels DMA
Low power RTC mode with 32KHz crystal support
WiFi
Dedicated high-performance 32-bit RISC CPU N9 up to 160MHz clock speed
IEEE 802.11 b/g/n compliant
Supports 20MHz, 40MHz bandwidth in 2.4GHz band
Single-band 1T1R mode with data rate up to 150Mbps
Supports STBC, LDPC
Greenfield, mixed mode, legacy modes support
IEEE 802.11e support
Security support for WFA WPA/WPA2 personal, WPS2.0
Supports 802.11w protected managed frames
QoS support of WFA WMM
Integrated LNA, PA, and T/R switch
Optional external LNA and PA support.
RX diversity support with additional RX input
Bluetooth
Bluetooth 4.2 Low Energy (LE)
Integrated BALUN and PA
Support SCO and eSCO link with re-transmission
Channel assessment for AFH
Optional Antenna
 Ceramic antenna
•Peak Gain : 0.5dbi typ
•S.W.R <= 2.0 @ 2400 MHz ~ 2500 MHz4.9~5.9GHz
 FPC antenna (connected with ipex4)
•Peak Gain : 4.5dbi typ
•S.W.R <= 2.0 @ 2400 MHz ~ 2500 MHz4.9~5.9GHz
MT7697 system structure as follows:
2、interface definition
Module size specification (in mm, 0.15mm acceptable engineering
deviation)
3.759
18
0.8
1.3
1.5
.3
23
1.27
R= 0
3.285
Reference Layout
Pin multiplexing
2.1
RF characteristics
2.1.1 RF characteristics for 802.11b 11M
802.11b Transmit
Item
Condition
Frequency Range
Tx Power Level
Type
Channal1
DQPSK
Frequency Tolerance
Modulation Accuracy
Min
Max
Unit
Channal13
19
20
21
dbm
-10
10
ppm
All Data Rate
802.11b Receiver
Item
Condition
Frequency Range
Min Input
Min
Type
Channal1
11Mbps
-76
Max
Unit
Channal13
-76
-76
dbm
Max
Unit
PER<5%
2.1.2 RF characteristics for 802.11g
54M
802.11g Transmit
Item
Condition
Frequency Range
Tx Power Level
Type
Channal1
DQPSK
Frequency Tolerance
Modulation Accuracy
Min
All Data Rate
Channal13
15
17.5
19
dbm
-10
10
ppm
-27
-29
-32
802.11g Receiver
Item
Condition
Frequency Range
Min Input
Min
Type
Channal1
54Mbps
-65
Max
Unit
Channal13
-65
-65
dbm
Max
Unit
PER<5%
2.1.3 RF characteristics for 802.11n
MCS7(HT20)
802.11n Transmit
Item
Condition
Frequency Range
Tx Power Level
Type
Channal1
OFDM
Frequency Tolerance
Modulation Accuracy
Min
All Data Rate
Channal13
15
17.5
18.5
dbm
-10
10
ppm
-30
-31
-34
802.11g Receiver
Item
Condition
Frequency Range
Min Input
Min
Type
Channal1
MCS7 PER<6%
-64
Max
Unit
Channal13
-64
-64
dbm
2.1.4 RF characteristics for 802.11n
MCS7(HT40)
802.11g Transmit
Item
Condition
Frequency Range
Tx Power Level
Type
Channal1
OFDM
Frequency Tolerance
Modulation Accuracy
Min
All Data Rate
Max
Unit
Channal13
15
17.4
18
dbm
-10
10
ppm
-27
-30
-33
802.11g Receiver
Item
Condition
Frequency Range
Min Input
2.2
Min
Type
Channal1
MCS7 PER<6%
-61
Max
Unit
Channal13
-61
-61
dbm
Type
Max
Unit
2480
MHZ
dbm
-150
150
KHZ
-50
50
KHZ
RF characteristics for Bluetooth LE
2.2.1 Bluetooth LE Transmitter Specification
Item
Description
Frequency Range
Output Power
Min
2402
Max power
-21
7.29
output level
Carrier Frequency
Frequency
offset and drift
offset
Frequency drift
In-band Spurious
±2M offset
-49
dbm
Emission
>±3Moffset
-56
dbm
Max
Unit
2480
MHZ
2.2.2
Bluetooth LE Receiver Specification
Item
Description
Frequency Range
Receiver sensitivity
Min
Type
2402
PER<30.8%
Inter -modulation
-50
30MHz to
-90
dbm
-34
KHZ
-30
dbm
-35
dbm
-35
dbm
2000MHz
Out-of-band Blocking
2001MHz to
2339MHz
2501MHz to
3000MHz
3、The Suggestion about PCB Design
For the high RF performance for the end device, please note the placement for the
antenna and the module.It is suggested that the module is placed along with PCB side, the
antenna is placed outside the board,or along with the PCB side, and the below board is blank,
please refer to the scheme 1 ;if the PCB antenna must placed on the board, please do not
cover the copper at the bottom of PCB antenna,as can be shown at scheme 2.
Scheme 1
Scheme 2
This document online version http://wrtnode.cc/node7.html, please check the latest version
online.
1、 Example 1. Wi-Fi station mode.
- Find your Wi-Fi access point settings: Before connecting to a Wi-Fi
access point, the following information needs to be collected:
-# The SSID of your Wi-Fi access point.
-# The authentication mode of your Wi-Fi access point. In general, the
authentication mode is WPA PSK or WPA2 PSK. To change the mode,
please refer to Table 1 for the list of supported authentication
modes.
-# The password of your Wi-Fi access point.
-# The encryption mode of your Wi-Fi access point. In general, AES or
TKIP is used. To change the mode, please refer to Table 2 for the
list of supported encryption modes.
- Once the information is collected, use the following commands to
configure the wrtnode^7.
config write STA AuthMode 9
config write STA EncrypType 8
config write STA Ssid myhome
config write STA SsidLen 6
config write STA WpaPsk 12345678
config write STA WpaPskLen 8
config write common OpMode 1
- Press the reset button on the wrtnode^7 to restart the system.
- Boot up with the new configuration. If everything is correct, similar
messages will be shown in the console to notify your HDK has received
an IP address.
DHCP got IP:10.10.10.101
- PING from the wrtnode^7. If the IP address is
fetched and the network is operating, the LinkIt 7687 can ping other
devices on the network with the following command in the console.
ping 10.10.10.254 3 64
The ping stops after sending three packets to 10.10.10.254.
The ping usage is: ping   
- Wi-Fi configuration options for AuthMode and EncrypType.
+---+-------------------------------------+
| 0 | open, no security
+---+-------------------------------------+
| 4 | WPA PSK
+---+-------------------------------------+
| 7 | WPA2 PSK
+---+-------------------------------------+
| 9 | Support both WPA and WPA2 PSK
+---+-------------------------------------+
Table 1. Supported AuthMode(s)
+---+------------------------+
| 0 | WEP
+---+------------------------+
| 1 | No encryption
+---+------------------------+
| 4 | TKIP
+---+------------------------+
| 6 | AES
+---+------------------------+
| 8 | Support TKIP and AES
+---+------------------------+
Table 2. Supported EncrypType(s)
2、 Example 2. Wi-Fi access point mode.
- Provide the Wi-Fi access point settings:
- SSID
- Authentication Mode
- Encryption Type
- Password
- Once the information is collected, use the following commands to
configure the LinkIt 7687 HDK. This example assumes WPA2 PSK is used
for authentication, AES for encryption, 'iot_ap' (length 6) for the
SSID, and the password of the WPA2 is '87654321' (length 8).
config write AP Ssid iot_ap
config write AP SsidLen 6
config write AP AuthMode 7
config write AP EncrypType 6
config write AP WpaPsk 87654321
config write AP WpaPskLen 8
config write common OpMode 2
- Press the reset button on the wrtnode^7 to restart the system.
- Use a handheld device or a laptop computer to connect to the access
point 'iot_ap'. In the console, the IP address assigned to the the
handheld device or laptop is: [DHCPD:DBG]lease_ip:10.10.10.2
Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the condition
that this device does not cause harmful interference (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
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:
1、Reorient or relocate the receiving antenna.
2、 Increase the separation between the equipment and receiver.
3、 Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
4、Consult the dealer or an experienced radio/TV technician for help.
To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be
installed and operated with minimum distance between 20cm the radiator your body: Use
only the supplied antenna.
FCC ID:2ALR4-WRTNODE7
This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users,
and
2) This device and its antenna(s) must not be co‐located with any other transmitters except in
accordance with FCC multi‐transmitter product procedures. Referring to the multi‐transmitter
policy, multiple‐transmitter(s) and module(s) can be operated simultaneously without C2P.
3) For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G
band by supplied firmware programming tool. OEM shall not supply any tool or info to the
end‐user regarding to Regulatory Domain change.
USERS MANUAL OF THE END PRODUCT:
In the users manual of the end product, the end user has to be informed to keep at least 20cm
separation with the antenna while this end product is installed and operated. The end user has to be
informed that the FCC radio‐frequency exposure guidelines for an uncontrolled environment can be
satisfied. The end user has to also be informed that any changes or modifications not expressly
approved by the manufacturer could void the user's authority to operate this equipment.
If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is
required to be available in the users manual: This device complies with Part 15 of 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.
LABEL OF THE END PRODUCT:
The final end product must be labeled in a visible area with the following " Contains FCC
ID:2ALR4-WRTNODE7 ". If the size of the end product is larger than 8x10cm, then the following
FCC part 15.19 statement has to also be available on the label: This device complies with Part 15
of 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.
Download: WRTNODE7 MT7697module User Manual  Beijing wanglianzhiyuan Tech Inc
Mirror Download [FCC.gov]WRTNODE7 MT7697module User Manual  Beijing wanglianzhiyuan Tech Inc
Document ID3422462
Application IDh8dLbQl9dt2DC8LIwMNcUg==
Document DescriptionUser Manual
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeUser Manual
Display FormatAdobe Acrobat PDF - pdf
Filesize64.1kB (801273 bits)
Date Submitted2017-06-12 00:00:00
Date Available2017-06-12 00:00:00
Creation Date2017-06-08 16:30:45
Document Lastmod2017-06-08 16:42:19
Document TitleUser Manual
Document CreatorWPS Office
Document Author: nothspec lo

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