The components used in this project can be purchased from the links mentioned below:. We will check their performance and compare them with other antennas as well and by the end of this article, you will get to learn that how you can test your own antennas. We also have two long and robust antennas from RAK wireless, which can be considered the best antennas for Helium miners. For that, we have an SAA-2N NanoVNA with us. Don't worry today we are to tell you how to test your antenna performance and which antennas you can use while making projects which include LoRa and other technologies. So, what to do how to check if the antenna is working fine or not. But have you ever thought that how your antenna is performing? Is the low range of your device that you are observing due to the Antenna itself? Most of the time we do not give this thing much importance and most of the time the communication or range-related issues are due to the antennas themselves. There are a variety of antennas present in the market and we can use several different antennas for any single project of ours. Wherever we need our projects to exhibit a distant communication, you will definitely observe an antenna to support the communication. Otherwise, you can update your firmware using Python and the bootload_firmware.py script.Įnsure you have Python version 3, and install pyserial.Hey, what's up, Guys! Akarsh here from CETech.Īntennas are the most important of our projects. Restart your NanoVNA as described below and follow the instructions in NanoVNAv2-QT. You can update the firmware using (NanoVNAv2-QT]( ). If you have an intact bootloader already installed in your NanoVNAv2, there are several ways to update the firmware.
Updating firmware using the serial bootloader If your device already has a working serial bootloader, you can upload the firmware without needing extra hardware. You can upload the firmware binary to that address using an ST-Link. The NanoVNA V2 firmware is installed at address 0x8004000.
Some reports indicate that the NanoVNAv2 cannot be powered via the 3.2v supply from the ST-Link, but should be powered from its own battery. To install the bootloader on a new GD32F303, you will need to use an ST-Link device, of which many inexpensive clones are available. The bootloader should be loaded at address 0x8000000, the start of the GD32F303 flash section. Please do not attempt to use a standard USB DFU tool. Instead, a serial bootloader program is installed.
The GD32F303 processor does not support USB DFU mode like the STM32 chips do. Git checkout - gd32f303cc_with_bootloader_plus4.ld Git checkout - gd32f303cc_with_bootloader.ld
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