GPS modules data

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

https://content.u-blox.com/sites/default/files/products/documents/u-blox8-M8_ReceiverDescrProtSpec_UBX-13003221.pdf

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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