Development of a specialized wireless communication module based on the LoRa micromodule

1.

MINISTRY OF SCIENCE AND HIGHER EDUCATION OF THE RUSSIAN FEDERATION
Federal State Autonomous Educational Institution of Higher Education
"National Research University
"Moscow Institute of Electronic Technology"
Institute of Microdevices and Control Systems
Direction 09.03.01 “Informatics and Computer Science”
Shumkin Daniil Dmitrievich
Development of a specialized wireless communication module
based on the LoRa micromodule
Scientific director:senior lecturer at the Institute of MPSU V.T. Khisamov
2023

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Relevance
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3.

Relevance
Wireless module
End device
Connection via
M2
connector
Sensors
?
Border Gateway
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4.

Goal and tasks
Target– development of a specialized wireless communication module
based on the LoRa micromodule
Tasks:
1. Develop a functional diagram
2. Select the component base
3. Develop an electrical circuit diagram
4. Perform wave impedance calculation
5. Develop topology and 3D-PCB model
6. Develop design documentation
7. Develop firmware
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Basic requirements for the module
Purpose of the module:
Transferring data from sensors to the border gateway
Characteristics:
Size 50x30 mm
Operating range of at least 1 km in urban environments
Communication with the op amp viaSPI
Configuration:
Memory block for storing configuration
LED status indication
Contact fields for connecting to the M2 connector on the op-amp
Antenna connector
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Component base selection results
MicromoduleLoRa SX1262 (Semtech)
HF switchSPDT PE4259(Peregrine)
GeneratorTCXONT2016SA(Texas Instruments)
EEPROM AT24MAC402(Microchip Technology)
SX1262
SPI
12.5 x 11.8
SX1278
SPI
20 x 20
4.6
9.9
Bitrate,kbit/s
up to 62.5
up to 300
Operating frequency,MHz
Up to 960
Up to 525
Price, rub
400
650
Interface
Size,mm
Active current
consumption,mA
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