Type 2GT LoRa Module EVB
User Manual
Introduction
This document specifies the usage of 2GT module EVB which is an assistant tool for engineers to develop and test Murata 2GT module.
Murata provides 2 types of 2GT EVB, one type is JS-1076 EVB, another one is JS-1125 EVB. Customer can refer the information based on the different EVB in this file.
General Overview
2.1 View of EVBs
2.1.1 View of JS-1076 EVB
The figure 1 shows the top view of the JS-1076 EVB.
The table1 shows the parts on the JS-1076 EVB information.
Table 1: Parts on the JS-1076 EVB
| SN | Ref No | Description |
| A | U4 | Lora sub_G RF port |
| B | U2 | Lora 2.4G RF port |
| C | U1 | 2GT module |
| D | 3V3_EXT | Connector of external power supply |
| E | GND | connector of external GND |
| F | J5 | Switch of power supply |
| G | LD1 | LoRa Transmit Data Indication LED |
| H | LD2 | LoRa Receive Data Indication LED |
| I | LD3 | Wi-Fi or GNSS Sniff Indication LED |
| J | U5 | 3V3 LDO |
| K | J1 | Connect pins to MCU platform |
| L | J2 | Connect pins to MCU platform |
| M | J3 | Connect pins to MCU platform |
| N | J4 | Connect pins to MCU platform |
2.1.2 View of JS-1125 EVB
The figure 2 shows the top view of the JS-1125 EVB.
The table2 shows the parts on the JS-1125 EVB information.
Table 2: Parts on the JS-1125 EVB
| SN | Ref No | Description |
| A | U4 | Lora sub_G RF port |
| B | U2 | Lora 2.4G RF port |
| C | U1 | 2GT module |
| D | 3V3_EXT | Connector of external power supply |
| E | GND | connector of external GND |
| F | J6, J7, J8 | Switch of power supply |
| G | LD1 | LoRa Transmit Data Indication LED |
| H | LD2 | LoRa Receive Data Indication LED |
| I | LD3 | Wi-Fi or GNSS Sniff Indication LED |
| J | U5 | 3V3 LDO |
| K | J1 | Connect pins to MCU platform |
| L | J2 | Connect pins to MCU platform |
| M | J3 | Connect pins to MCU platform |
| N | J4 | Connect pins to MCU platform |
2.2 EVB schematic
The figure3 and figure4 shows the schematic of EVB. User can refer it to check the parts on the EVB.
2.3 Accessories of EVB
The accessories are needed to set up the EVB test system. And table2 and figure3 shows the detailed information.
Table 3: Accessories of EVB
| SN | Description | Provider |
| A | Lora antenna for sub_G band | Murata |
| B | Lora antenna for 2.4G ISM band | Murata |
| C | NUCLEO-L476RG MCU platform | Customer |
| D | Mini USB | Customer |
2.4 EVB and Accessories Assembly
STEP1: Connect the EVB to the NUCLEO-L476RG.Make sure the pins are connected in the red areas on the EVB and platform as showed in the figure 6.
STEP2: Connect the NUCLEO-L476RG to PC by Mini USB interface cable and assembly the antennas on the EVB as showed in figure 7.
Parts Applications
3.1 Antenna ports
There are 2 RF ports on the EVB, customer can use them to do the conductive test and radioactive test for different purposes. The position and description can refer the figure1 and table1.
3.2 Switch
3.2.1 Switch on JS-1076 EVB
There is a J5 switch used for the power supply selection as showed in figure 8.
If customer want to use the supply from Nucleo board, please connect pin1 and pin2.
If customer want to use external DC supply, please connect pin2 and pin3.
3.2.2 Switch on JS-1125 EVB
There are J6,J7,J8 switchs on JS-1125 EVB used for the power supply selection as showed in figure 9.
If we use the external DC supply, please connect pin1 and pin2 of J6.
If we use the 5V from Nucleo board, please connect pin1 and pin2 of J7.
If we use the 3.3V from Nucleo board, please connect pin1 and pin2 of J8.
3.3 Indication LEDs
There are 3 LEDs (LD1, LD2 and LD3) on the EVB, the position and description can refer the figure1,2 and table1,2.
EVB Operation Procedures
4.1 MCU Platform driver install
Step1: Connect the PC USB port to NUCLEO-L476 board USB port, open the Device Manager in the PC, then install ST-LINK_USB_V2_Driver. Download link is in the table 4.
Step2: Install the driver successfully and see the com port in figure 10:
4.2 MCU test firmware install
Step1: Open the STM32cuberprogrammer software. Download link is in the table 4
Step2: Click connect button.
Step3: Click connect browse button and select test firmware.
Step4: Click start programming.
Step5: Check pop-up windows shows the download complete or not.
These steps showed in the figure 11 and figure12.
4.3 Set command to EVB
Step1: Open tera term, putty or other UART communication tool, download link is in table4.
Step2: Select the Serial and choose the correct com port as showed in figure 13.
Step3: Go to Setup>Serial port, change the Speed to 115200 and click on new setting as showed in figure 14.
Step4: Set the command to EVB. For the command information, please refer to Type-2GT LR11xx test firmware AT command specification.pdf in table 4.
Reference
Table 4 reviews all the key reference links and documents that user may like to refer to.
Table 4: Reference Table
| Documents and information | Notes |
| NUCLEO-l476 Link | https://www.st.com/en/evaluation-tools/NUCLEO-l476rg.html |
| ST-LINK_USB_V2_Driver Link | STSW-LINK009 – ST-LINK, ST-LINK/V2, ST-LINK/V2-1, STLINK-V3 USB driver signed for Windows7, Windows8, Windows10 – STMicroelectronics |
| STM32cuberprogrammer Link | STM32CubeProg – STM32CubeProgrammer software for all STM32 – STMicroelectronics |
| Tera Term software Link | Tera Term Open Source Project (osdn.jp) |
| Putty software Link | Download PuTTY: latest release (0.78) (greenend.org.uk) |
| Type-2GT LR11xx test firmware AT command specification.pdf | This document is intended to describe the command interface and format for Type-2GT LR11xx test firmware. |
Revision History
| Revision | Date | Section | Change Description |
| A | 07.18.2023 | First issue, EVB is JS-1076. | |
| B | 12.28.2023 | Added the user manual based on JS-1125 EVB. | |
Copyright © Murata Manufacturing Co., Ltd. All rights reserved. The information and content in this document are provided “as-is” with no warranties of any kind and are for informational purpose only. Data and information have been carefully checked and are believed to be accurate; however, no liability or responsibility for any errors, omissions, or inaccuracies is assumed.
Wi-Fi ® is a registered trademark of Wi-Fi Alliance. The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. Other brand and product names are trademarks or registered trademarks of their respective owners. Specifications are subject to change without notice.
©2020 by Murata Manufacturing Co., Ltd. ● www.murata.com
Documents / Resources
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muRata LBAA0XV2GT LoRa Module EVB [pdf] User Manual LBAA0XV2GT, JS-1076, JS-1125, LBAA0XV2GT LoRa Module EVB, LBAA0XV2GT, LoRa Module EVB, Module EVB, EVB |
