RAKwireless 2AF6BRAK11720 WisDuo LPWAN Module Owner’s Manual

RAK11720 WisDuo LPWAN Module
Datasheet
Overview

Description

The RAK11720 is a low-power long-range transceiver module.It consists of a Bluetooth integrated MCU and a LORA transceiver. RAK11720 is designed based on AMA3B1KK-KBR-B0 form Ambiq Micro that supports Bluetooth 5.0 (Bluetooth Low Energy) and the newest SX1262 LoRa transceiver from Semtech. This module complies with Class A, B, & C of LoRaWAN 1.0.3 specifications and also supports LoRa Point-to-Point (P2P) communication mode which helps you in implementing your own customized long-range LoRa network quickly. The two RF communication characteristic of the module (Lora® + BLE) makes it suitable for a variety of applications in the IoT field, such as home automation, sensor networks, building automation, and IoT network applications.
NOTE There are two variants available for the RAK11720 Module: (1) MHF4 IPEX connector on RAK11720 to connect to the external antennas (2) The antenna signal route to stamp holes so users can use their own antennas.

Features

• Based on AMA3B1KK-KBR-B0 and SX1262
• ARM Cortex-M4F
• 1MB Flash and 348KB SRAM
• I/O ports: UART/I2C/SPI/ADC/GPIO
• LoRaWAN 1.0.3 specification compliant
• Supported bands: EU433, CN470, IN865, EU868, AU915, US915, KR920, RU864, and AS9231/2/3/4 LoRaWAN
• LoRa activation via OTAA/ABP
• Point-to-Point (P2P) communication
• Easy to use AT command set via UART interface
• Long-range – greater than 15 km with optimized antenna
• Ultra-low-power consumption of 2.37 μA in sleep mode
• Supply Voltage: 1.8 V ~ 3.6 V
• Temperature range: -40° C ~ 85° C

Specifications

This section covers the hardware and software specifications of RAK11720. Also, it includes the block diagram and the update firmware link of the RAK11720 WisDuo module.

Overview

Block Diagram

Hardware

The hardware specification discusses the interfaces, pinouts and corresponding functions and diagrams. It also covers the parameters of both RAK11720 modules in terms of RF, electrical, mechanical, and operating characteristics.
Pin Definition

No- IPEX connector variant)
13| GP7/SPI0_MOSI| I/O| GPIO and SPI0 (MOSI)
14| GP6/SPI0_MISO| I/O| GPIO and SPI0(MISO)
15| GP5/SPI0_CLK| I/O| GPIO and SPI0 (CLK)
16| GP1/SPI0_NSS| I/O| GPIO and SPI0 (NSS)
17| GND| POWER| Ground connections
18| GND| POWER| Ground connections
19| GP4| I/O| GPIO only
20| GP36| I/O| GPIO only
21| SWO| I/O| SBL log output
22| RST| | MCU Reset (nRST)
23| GND| POWER| Ground connections
24| VDD| POWER| VDD – Voltage Supply
25| GP32/ADC4| I/O| GPIO and ADC
26| GP31/ADC3| I/O| GPIO and ADC
27| GP37| I/O| GPIO only
28| GND| POWER| Ground connections
29| GP44| I/O| GPIO only
30| GP38| I/O| GPIO only
31| GP33/ADC5| I/O| GPIO and ADC
32| GP13/ADC8| I/O| GPIO and ADC
33| BLE RF| **** RF| BLE RF Port (only available on RAK11720 No- IPEX connector variant)
34| GND| POWER| Ground connections

RF Characteristics
LORA
The RAK11720 module supports the LoRaWAN bands shown in the table below. When buying a RAK11720 module, pay attention to specifying the correct core module RAK11720 H/L for your region, in which H stands for high-frequency regions and L for low-frequency regions.
Operating Frequencies

Electrical Characteristics
Operating Voltage

Operating Current

Feature| Condition| Minimum| Typical| Maximum| Unit
---|---|---|---|---|---
Operating Current| BLE TX Mode| –| 12.7（@6.0dBm ）| –| **** mA
| LORA TX Mode| –| 87 (@ 22 dBm 868Mhz)| –| mA

Sleep Current

Feature| Condition| Minimum (2.1V)| Typical (3.3V)| Maximum| Unit
---|---|---|---|---|---
Current Consumption| ** EU868| –**| 2.37| –| μA
| US915| –| 2.37| –| μA
---|---|---|---|---|---
| CN470| –| 2.37| –| μA

Mechanical Characteristics

Module Dimensions

Layout  Recommendation

Environmental Characteristics

Operating Temperature

Standard conditions for reflow soldering:

• Pre-heating Ramp (A) (Initial temperature: 150 ℃): 1~2.5 ℃/sec
• Soaking Time (T2) (150~180 ℃): 60~100 sec
• Peak Temperature (G): 230~250 ℃
• Reflow Time (T3) (>220 ℃): 30~60 sec
• Ramp-up Rate (B): 0~2.5 ℃/sec
• Ramp-down Rate (C): 1~3 ℃/sec

Warning

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;
2. This device must accept any interference received, including interference that may cause undesired operation.

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
FCC Statement:
“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.”

INTEGRATION INSTRUCTIONS

1. This module has been tested and found to comply with the FCC Part15.247 for Modular Approval.
2. This Modular Approval is limited to OEM installation for mobile and fixed applications only. The antenna installation and operating configurations of this transmitter, including any applicable source-based time- averaging duty factor, antenna gain and cable loss must satisfy MPE categorical Exclusion Requirements of 2.1091. This modular should be installed and operated with minimum distance 20 cm between the radiator& your body.
3. The RPSMA connector antenna has been approved for the modular. The maximum antenna gain is 2.3dBi for Lora and 3.12dBi for BLE. For situations where the host manufacturer is responsible for an external connector, the integration instructions shall inform the installer that a unique antenna connector must be used on the Part 15 authorized transmitters used in the host product.
4. When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily removed. If not, a second label must be placed on the outside of the final device that contains the following text: ―Contains FCC ID: 2AF6B-RAK11720.
5. The Shenzhen Rakwireless Technology Co., Ltd. uses various test mode programs for test set up which operate separate from production firmware. Host integrators should contact Shenzhen Rakwireless Technology Co., Ltd. for assistance with test modes needed for module/host compliance test requirements.
6. The Shenzhen Rakwireless Technology Co., Ltd. modular transmitter is only FCC authorized for the FCC Part15.247 listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentionalradiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

ISED Warning:
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s).
Operation is subject to the following two conditions:

1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the device.

This equipment complies with ISED 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.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter located or operating in conjunction with any other antenna or transmitter.
The host product shall be properly labelled to identify the modules within the host product. The ISED certification label of a module shall be clearly visible at all times when installed in the host product; otherwise, the host product must be labelled to display the ISED certification number for the module, preceded by the word “contains” or similar wording expressing the same meaning, as follows:
Contains IC: 25908-RAK11720

Labelling
The proposed FCC IC label format is to be placed on the module. If it is not visible when the module is installed into the system,
“Contains FCC ID: 2AF6B-RAK11720, Contains IC: 25908- RAK11720” shall be placed on the outside of final host system.
Labelling

•  This radio transmitter [25908- RAK11720] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.

For Lora:

Antenna #| Model| Antenna Gain| Antenna Type| Connector Type
---|---|---|---|---
1#| KRAKBJ2701C01A| 2.3 dBi| Dipole Antenna| RPSMA connector
2#| KRAKBJ2701C01C| 2.3 dBi| Dipole Antenna| RPSMA connector
3#| RAKARJ14| 2.3 dBi| Dipole Antenna| RPSMA connector
4#| RAKARJ16| 2.3 dBi| Dipole Antenna| RPSMA connector

For BLE:

Antenna #| Model| Antenna Gain| Antenna Type| Connector Type
---|---|---|---|---
1#| S2B1BH2A1B01000| 3.12 dBi| PCB Layout Antenna| IPEX connector

Firmware Version Identification Number:
RUI_3.5.2+user_final.hex
Manufacturer name and address：
Shenzhen Rakwireless Technology Co., Ltd.
Room 506, Bldg B, New Compark, Pingshan First Road, Taoyuan Street, Nanshan District, Shenzhen

About RAKwireless:
RAKwireless is a pioneer in providing innovative and diverse Cellular and LoRaWAN connectivity solutions for both Edge and Gateway IoT devices. We believe that through easy to use and modular designs we can accelerate the time to market for various IoT Applications in order to optimize system deployment in both Developer and Commercial settings.

www.RAKwireless.com
Copyright© Shenzhen Rakwireless Technology Co., Ltd.

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