Here I will be posting comparison and data of GPS modules I have.
Module | Chip | HDOP | Cold start sec. (indoor) |
HT1818U8G5L | ubx-g8030-kt (probably m8030) so its series 8 ublox | ~1-1.5 | 709 |
https://www.alibaba.com/product-detail/HT1818U8G5L-GLONASS-module-built-in-LNA_1600396534911.html
https://www.aliexpress.com/item/4000521056202.html
https://www.u-blox.com/en/product/ubx-m8030-series
So it seems it is u-blox ubx-g8030-kt with 2.01 firmware. Found that it has a formware upgrade:
But trying to update it to 3.01 all I got was “Flash Detection timed out.”.
Tips to increase baud rate and refresh time:
How to configure ublox GPS settings / increase update rate
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