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RAK11300 WisDuo LPWAN Module Datasheet

Overview​

Description​

RAK11300 WisDuo LPWAN Module is based on the Raspberry Pi RP2040 chip and SX1262 RF transceiver. It provides an easy-to-use, small-size, low-power solution for long-range wireless data applications. This module complies with Class A & C of LoRaWAN 1.0.2 specifications. It can easily connect to different LoRaWAN server platforms like TheThingsNetwork (TTN), Chirpstack, Helium, etc.

Features​

  • Based on Raspberry Pi RP2040 and Semtech SX1262
  • LoRaWAN 1.0.2 specification compliant
  • Supported bands: EU433, CN470, IN865, EU868, AU915, US915, KR920, RU864, and AS923-1/2/3/4
  • LoRaWAN Activation by OTAA/ABP
  • Long-range - greater than 15 km with optimized antenna
  • ARM Cortex-M0+ Dual Core
  • 133 MHz CPU Clock
  • 246 kbytes RAM
  • Supply Voltage: 2.0 V ~ 3.6 V
  • Temperature Range: -20° C ~ 85° C

Specifications​

This section covers the hardware and software specifications of RAK11300. It also includes the block diagram of the module showing its interfaces.

Overview​

Block Diagram​

Figure 5794: RAK11300 System Block Diagram

Hardware​

The hardware specification is categorized into six parts. It shows the interfaces of the module and discusses the pinouts and their corresponding functions and diagrams. It also covers the RF, electrical, mechanical, and environmental parameters of the RAK11300 WisDuo LPWAN Module.

Interfaces​

ModuleInterfaces
RAK11300UART, USB

Pin Definition​

Figure 5795: RAK11300 Module Pinout
Pin Description​

The table below shows the pin definition and description of RAK11300:

TypeDescription
PIPower Input
POPower Output
DIDigital Input
DODigital Output
IOBidirectional
AIAnalog Input
AOAnalog Output
Power Supply​
Pin NamePin No.TypeDescription
VBAT_SX21PISupply for the LoRa IC
VBAT_SX_IO22PISupply for the Digital I/O interface pins
DVDD45PISupply for the MCU
AVDD46PIADC Reference Voltage
GND14, 17, 23, 37, 40, 44GroundGround
I2C Interface​
Pin NamePin No.TypeDescription
I2C1_SDA4IOI2C serial data
I2C1_SCL5DOI2C serial clock
I2C2_SDA24IOI2C serial data
I2C2_SCL25DOI2C serial clock
USB Interface​
Pin NamePin No.TypeDescription
USB_DM2IOUSB differential data(-)
USB_DP3IOUSB differential data(+)
UART Interface​
Pin NamePin No.TypeDescription
UART1_RX9DIUART1 receive
UART1_TX10DOUART1 transmit
UART2_RX6DIUART2 receive
UART2_TX7DOUART2 transmit
SPI Interface​
Pin NamePin No.TypeDescription
SPI0_SCK30DOSPI clock
SPI0_MISO33DISPI master input, slave output
SPI0_MOSI34DOSPI master output. slave input
SPI0_CSN35DOSPI chip select
SWD Interface​
Pin NamePin No.TypeDescription
SWCLK19DebugSWD clock input for debugging and programming
SWDIO20DebugSWD I/O for debugging and programming
RESET​
Pin NamePin No.TypeDescription
RESET18DIReset the module, Active Low
Antenna Interface​
warning

When using RF_LoRa pin for antenna and not the IPEX connector variant, there are design considerations to make sure optimum RF performance.

  • RF trace must be away from interference (switching node of DC-DC supply, high current/voltage pulses from controllers of inductive load like motor, signal generators, etc.)
  • RF trace must have 50 Ohms impedance. It is advisable to use an impedance simulation software tool to achieve this requirement.
  • If using an external antenna connector, make it close to the RF_LoRa pin.
  • Ground plane optimization is critical on certain antenna types like monopole.
  • GND trace used for RF path return must be directly connected to the GND plane and not be treated as thermal relief.
  • It is recommended for the RF trace to be routed in a curve and not in a sharp 90 degrees.

In addition, with a commitment to making IoT easy, RAK offers a dedicated service for Antenna RF Design which includes PCB design, tuning, matching, and RF testing.

Pin NamePin No.TypeDescriptionComment
RF_LoRa38IOLoRa antenna interface50 Ω Impedance
This pin can't be used on modules with an IPEX connector. If unused, keep this pin open.
ADC and GPIO​
Pin NamePin No.TypeDescription
GPIO711IOGeneral-purpose input/output
GPIO812IOGeneral-purpose input/output
GPIO913IOGeneral-purpose input/output
GPIO2227IOGeneral-purpose input/output
GPIO2328IOGeneral-purpose input/output
GPIO2429IOGeneral-purpose input/output
GPIO2741IOGeneral-purpose input/output
GPIO26
ADC1		43IO
AI		General-purpose input/output
General-purpose ADC interface
GPIO28
ADC0		44IO
AI		General-purpose input/output
General-purpose ADC interface

RF Characteristics​

The RAK11300 supports two different frequency variations: RAK11300(L) Low Radio Frequency and RAK11300(H) High Radio Frequency.

Operating Frequencies​
ModuleRegionFrequency
RAK11300(L)EuropeEU433
ChinaCN470
RAK11300(H)EuropeEU868
AmericaUS915
AustraliaAU915
KoreaKR920
AsiaAS923
IndiaIN865
RussiaRU864

Electrical Characteristics​

Recommended Operating Conditions​
SymbolDescriptionMin.Nom.Max.Unit
VBAT_SXSX1262 supply voltage2.03.33.7V
VBAT_SX_IOSX1262 supply for I/O pins2.03.33.7V
DVDDPower supply of MCU2.03.33.6V
AVDDADC Reference Voltage-3.3-V
Absolute Maximum Ratings​
SymbolDescriptionMin.Nom.Max.Unit
VBAT_SXLoRa chip supply voltage-0.5-3.9V
VBAT_SX_IOLoRa chip supply for I/O pins-0.5-3.9V
DVDDSupply for the MCU-0.5-3.6
AVDDADC Reference Voltage-0.5-3.6
ESD HBMHuman Body Model--2000V
ESD CDMCharged Device Model--500V

Mechanical Characteristics​

Module Dimensions​
Figure 5796: RAK11300 Physical Dimension
Layout Recommendation​
Figure 5797: RAK11300 Layout

Environmental Characteristics​

Operating Temperature​
FeatureMinimumTypicalMaximumUnit
Operating Temperature-202585° C
Storage Temperature​
FeatureMinimumTypicalMaximumUnit
Storage Temperature-2085° C
Recommended Reflow Profile​
Figure 5798: Reflow Profile for RAK11300

Standard conditions for reflow soldering:

  • Pre-heating Ramp (A) (Initial temperature: 150° C): 1~2.5° C/sec
  • Soaking Time (T2) (150180° C): **60100 sec**
  • Peak Temperature (G): 230~250° C
  • Reflow Time (T3) (> 220° C): 30~60 sec
  • Ramp-up Rate (B): 0~2.5° C/sec
  • Ramp-down Rate (C): 1~3° C/sec

Software​

Download the latest firmware of the RAK11300 WisDuo LPWAN Module provided below.

Firmware/OS​

ModelVersionSource
RAK11300V1.0.0Download

Certification​

ce
fcc
ised
ukca