INTEGRATION OF LILYGO LORA32 INTO A MULTI-CHANNEL RADIO ENGINEERING SYSTEM ON FPGA FOR FREQUENCY CONVERTERS OF PHYSICAL QUANTITIES

Abstract

The work presents the enhancement of the functional capabilities of a multi-channel parallel frequency measurement system based on the Altera Cyclone IV FPGA. The main task is the integration of the Lilygo LORA32 module, providing the capability for preliminary data processing and transmission through wireless communication channels such as Lora, WiFi, and Bluetooth. The multi-channel universal measuring device, which features 12 measurement channels for frequency output sensors, is based on the NIOS II microprocessor core and can interact with digital sensors of physical quantities. The paper describes the development environment setup, creation of a UART driver for reading measured data, parsing of received data, error handling and checking, and packaging data into a compact format for subsequent transmission. Experimental studies and analysis of the results demonstrate the efficiency and reliability of the proposed system. The Lilygo LORA32 module was selected for this project due to its numerous advantages and impressive characteristics that make it suitable for integration into advanced measurement systems. The Lilygo LORA32 features an ESP32 microcontroller, which provides robust processing power and support for various communication protocols, including Lora, WiFi, and Bluetooth. This versatility allows for flexible and efficient data transmission over long distances, ensuring reliable connectivity even in challenging environments. The key advantages of the Lilygo LORA32 include its low power consumption, which is critical for battery-operated devices, and its high sensitivity, which enhances signal reception and extends communication range. Additionally, the module supports multiple frequency bands, making it adaptable to different regional requirements and ensuring compliance with global communication standards. The integration of an OLED display on the module also allows for real-time data monitoring and debugging, further enhancing its usability in complex systems. Overall, the Lilygo LORA32's combination of processing power, communication versatility, and energy efficiency makes it an ideal choice for enhancing the capabilities of multi-channel measurement systems on FPGA platforms.