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RAK5205 WisTrio LPWAN Tracker Datasheet

Overview​

Description​

The RAK5205 WisTrio LPWAN Tracker board is built on the Semtech SX1276 chip, with the STM32L1 MCU at its core. It is a feature-packed sensor board with LoRa connectivity and built-in GPS. It provides various interfaces for easy application development.

This is the ideal LPWAN tracker board with a built-in sensor available on the market. It is best used as a quick prototyping module for Internet-of-Things and LoRaWAN Network integration. Its perfect use cases for IoT applications include asset tracking, smart vehicle management, and location-based services.

Features​

  • Compatible with 96Boards IoT Edition Specification
  • With SX1276 LoRa long-range and Ublox Max 7Q GPS modems which allow to enabling the GPS low power mode
  • Integrated the ultra-low-power microcontroller ARM Cortex-M3 STM32L1
  • Built-in environmental sensor BME680 (gas, pressure, humidity, temperature) and 3-axis MEMS sensor LIS3DH (accelerometer)
  • SMA/iPEX antenna optional for LoRa and GPS
  • Supports latest LoRaWAN 1.0.2 protocol, activation by OTAA/ABP
  • Supports programmable bit rate up to 300 kbps
  • Supports rechargeable battery through micro USB or 5 V solar charging ports
  • Supports sleep mode, the power consumption down to 14.5 μA
  • Supports global license-free ISM band: EU433, CN470, EU868, US915, AS923, AU915, KR920 and IN865
  • Supports I2C, GPIOs, UART, and ADC interfaces.

Specifications​

Overview​

The overview covers the RAK5205 WisTrio board top view and also, its block diagram with the corresponding external interfaces of the RAK5205.

Board Overview​

Figure 1 shows the top view and external interfaces of the RAK5205 LPWAN tracker board.

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Figure 1: RAK5205 WisTrio LPWAN Tracker Interfaces

The dimension and the bottom view of the board are shown below. Sensor ICs are also labeled for your reference.

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Figure 1: RAK5205 Dimension and Sensors Available

Hardware​

The hardware specification is categorized into eight parts. It discusses the interfacing, pinouts, and their corresponding functions and diagrams. It also covers the parameters and standard values in terms of electrical, environmental mechanical and the antennas specifications.

Interfaces​

Functional Diagram​
Zoomable
Figure 1: RAK5205 Functional Diagram

It is built around RAK811 module and compatible with 96Boards. It provides the following interfaces, headers, jumpers, button and connectors:

  • Micro USB
  • 30-pin 96Boards Headers (UART, RESET, GPIOS, I2C, ADC)
  • 2-pin USB Boot jumper
  • 3-pin UART RX jumper
  • 2-pin Battery female interface
  • 2-pin Solar Panel female interface
  • LEDs
  • Reset Button

It has two Antenna connectors:

  • RP-SMA Male connector of LoRa Antenna(optional iPEX connector)
  • SMA Female connector of GPS Antenna(optional iPEX connector)
Micro-B USB Interface​

A Standard Micro-B USB compliant with USB 2.0 standard specification is used to provide an interface to connect to a PC for control of the board and firmware upgrade.The Micro-B USB pin definition is shown below:

Zoomable
Figure 1: Micro USB Pinout
PinDescription
1USB_VBUS (+5 V)
2USB_DM
3USB_DP
4NC
5GND
LEDs​

Three LEDs are used to indicate operating status, here are their functions:

  • 🟢 GREEN LED : Status - Defined By User
  • 🔵 BLUE LED: Status - Defined By User
  • 🔴 RED LED : Charging Status - indicates the Li-ion Battery is Charging
Reset Push Button​

Reset Push Button is used to reset the RAK811 module. To reset the module, push the Reset Button for one second.

Pin Definition​

Here are the six connectors for RAK5205 tracker board: P1, P2, J11, J12, J22, and J25

  • P1
    Li-ion Battery Connector: Pin1 connected to VBATT, Pin2 connected to GND

  • P2
    Solar Cell Interface: Pin1 connected to VBUS, Pin2 connected to GND

  • J11
    Pin1 is connected to VBUS. Pin2 is connected to VBIN. J11 should be closed when no battery is connected, and it should be open when a battery is connected.

  • J12
    Pin1 is connected to BOOT0. Pin2 is connected to VDD. To flash a firmware, connect Pin1 and Pin2 with a jumper and reset the device. For normal operation, remove the jumper.

  • J22
    The 30 pins follow the 96Board pin definition.

Zoomable
Figure 1: RAK5205 Pinout Diagram
PinPin NameDescription
1NCNo Connection
2NCNo Connection
3UART1_TXUART1_TX
4NCNo Connection
5UART1_RX1UART1_RX1 (If you want to use this UART interface, need to connect RX pin and RX1 pin of J25 via jumper.).
6NCNo Connection
7NCNo Connection
8NCNo Connection
9GNDGround
10GNDGround
11VCCIN5 V out
12VCC_3V33.3 V out
13PA8GPIO Pin. This pin can be controlled via AT Command or RUI with GPIO number 5. (On RAK811(L) low frequency based boards like EU433, this is mapped to STM32 pin PB13).
14PB3GPIO Pin. This pin can be controlled via AT Command or RUI with GPIO number 15. (On RAK811(L) low frequency based boards like EU433, this is mapped to STM32 pin PA3).
15NCNo Connection
16PB5GPIO Pin. This pin can be controlled via AT Command or RUI with GPIO number 16.
17SWD_TMSGPIO Pin / R21, R22 pull-up 10K resistor can be used as JTAG interface.
18SWD_CLKGPIO Pin / R21, R22 pull-up 10K resistor can be used as JTAG interface.
19LED1_PA12LED pin is active low. This pin can be controlled via AT Command or RUI with GPIO number 8.
20LED2_PB4LED pin is active low. This pin can be controlled via AT Command or RUI with GPIO number 9. (On RAK811(L) low frequency based boards like EU433, this is mapped to STM32 pin PA11).
21NCNo Connection
22SCLI²C
23NCNo Connection
24SDAI²C
25NCNo Connection
26PB12ADC Interface. This analog pin can be read via AT Command or RUI with GPIO number 2.
27NCNo Connection
28NCNo Connection
29RSTReset Pin
30NCNo Connection
  • J25
    To connect the serial output to the USB connector, RX and RxCP must be connected. To connect the Serial output to the UART pins on the J22 connector, RX and RX1 must be connected.

RF Characteristics​

Operating Frequencies​

The board supports all LoRaWAN frequency channels as stated in the table below which is easy to configure while building the firmware from the source code.

RegionFrequency (MHz)
EuropeEU433, EU868
ChinaCN470
North AmericaUS915
AsiaAS923
AustraliaAU915
KoreaKR920
IndianIN865

Antennas​

LoRa Antenna​
Overview​

The LoRa Antenna and Interfaces are shown in Figure 6:

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Figure 1: RP-SMA Male Connector of LoRa Antenna

Here is the iPEX LoRa Antenna Interface:

Zoomable
Figure 1: iPex Antenna Interface for LoRa Antenna
LoRa Antenna Dimension​
Zoomable
Figure 1: LoRa Antenna Dimension
LoRa Antenna Parameters​
ParametersSpecifications
VSWR (Voltage Standard Wave Ratio)1.5:1
Gain2.0 dBm
Temperature• Working Temperature: T:-35 °C ~ +80 °C
• Storage Temperature: -40 °C ~ +85 °C
Humidity• Working Humidity: 0% ~ 95%
• Storage Humidity: 0% ~ 95%
GPS Antenna​

The GPS antenna and interfaces for RAK5205 tracker board are shown in Figure 9:

Zoomable
Figure 1: SMA Female Interface for GPS

Here is the iPEX GPS Antenna interface:

Zoomable
Figure 1: iPex Interface for GPS Antenna
GPS Antenna Dimensions​
Zoomable
Figure 1: GPS Antenna Dimension
GPS Environmental Requirements​

The antenna environmental requirements are listed in the table below:

ConditionsTemperatureHumidity
Working-35 °C ~ +80 °C0% ~ 95%
Storage-40 °C ~ +85 °C0% ~ 95%
GPS Antenna Parameter​
ItemSpecificationsPET
Range of Receiving Frequency1575.42±1.1±2.5
Center Frequency (MHz) w/ 30 mm2 GND plane1575.42±3.0
Bandwidth (MHz) (Return Loss ≤ -10 dB)≥10±0.5
VSWR (in Center Frequency)≤2.0±0.5
Gain (Zenith) (dBi Typ) w/ 70 mm2 GND Plane4.5±0.5
Axial Ratio (dB) w/ 70 mm2 GND Plane3.0±0.2
PolarizationRigh-Handle Circular-
Impedance (Ω)50-
Frequency Temperature Coefficient (ppm/°C)0 ±10-

Amplifier Specifications are listed in the table below:

ItemSpecifications
Frequency Range1575.42 MHz
Gain27 dB
VSWR≤ 2.0 V
Noise Coefficient≤ 2.0 dBm
DC Voltage3 ~ 5 V
DC Current5 ± 2 mA

Environmental test performance specifications are listed below:

ItemNormal Temp.High Temp.Low Temp.
Amplifier Gain27 dB ± 2.027 dB ± 2.027 dB ± 2.0
VSWR≤ 2.0≤ 2.0≤ 2.0
Noise Coefficient≤ 2.0≤ 2.0≤ 2.0
NOTE

High Temperature Test: Soap in temperature (85 °C) and humidity (95%) chamber for 24-hour and return normal temperature (at least for 1-hour) without visual shape change.
Low Temperature Test: Soap in temperature (-40 °C) chamber for 24-hour and return to normal temperature (at least for 1-hour) without visual shape change.

Electrical Characteristics​

Power Consumption​
Working Mode​

The board supports to enabling the GPS low-power mode. It has a 3-axis MEMS Sensor LIS3DH, which can detect the user's motion status. When the device is stationary, it will enter the low power sleep mode, reducing the overall power consumption and increasing battery life. The power consumption is shown in the following table.

ModePower Consumption
Sleep Mode14.5 µA (Minimum)
Normal Mode174 mA (Maximum) @ 20 dBm and GPS Enabled
Power Requirements​

The RAK5205 LoRa Tracker Board has an operating voltage of 3.7 V. It can be powered by micro USB with 5 V Max.

Zoomable
Figure 1: Powered by Micro USB

The board can also be powered by a 3.7 V Li-Ion battery. You can connect a 5 V solar panel charger to recharge the Li-Ion battery.

Zoomable
Figure 1: RAK5205 With 5V Solar Panel, Plastic Enclosure, and Li-ion Battery

Environmental Requirements​

The table below lists the operation and storage temperature requirements:

ParameterMin.TypicalMax.
Operation Temp. Range-35 °C+25 °C+60 °C
Extended Temp. Range-40 °C-+80 °C
Storage Temp. Range-40 °C-+80 °C

Mechanical Characteristics​

Zoomable
Figure 1: RAK5205 Detailed Dimensions

Schematic Diagram​

Zoomable
Figure 1: Schematic Diagram - 1
Zoomable
Figure 1: Schematic Diagram - 2
Zoomable
Figure 1: Schematic Diagram - 3

Firmware​

Download the supported firmware of RAK5205 in the table provided below.

ModelSupported FirmwaresVersionSource
RAK5205 - HEU868 / US915 / AU915 / KR920 / IN865V3.0.0.14.H.RDownload
RAK5205 - LEU433 / CN470V3.0.0.14.L.RDownload
Home
AT Command Manual
  • Overview
    • Description
    • Features
  • Specifications
    • Overview
      • Board Overview
    • Hardware
      • Interfaces
        • Functional Diagram
        • Micro-B USB Interface
        • LEDs
        • Reset Push Button
      • Pin Definition
      • RF Characteristics
        • Operating Frequencies
      • Antennas
        • LoRa Antenna
          • Overview
          • LoRa Antenna Dimension
          • LoRa Antenna Parameters
        • GPS Antenna
          • GPS Antenna Dimensions
          • GPS Environmental Requirements
          • GPS Antenna Parameter
      • Electrical Characteristics
        • Power Consumption
          • Working Mode
          • Power Requirements
      • Environmental Requirements
      • Mechanical Characteristics
      • Schematic Diagram
    • Firmware

LoRa® is a registered trademark or service mark of Semtech Corporation or its affiliates. LoRaWAN® is a licensed mark.

Copyright © 2014-2024 RAKwireless Technology Limited. All rights reserved.

Copyright © 2014-2024 RAKwireless Technology Limited. All rights reserved.

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