micro_ubx

This is ubx packet parser for MicroPython.

You can get UBX-NAV-PVT.

I tested it using Atom Lite and MicroPython v1.18 on 2022-01-17; ESP32 module with ESP32.

GPS module is UBX-M8030-KT

https://akizukidenshi.com/catalog/g/gM-12905/

UBX-NAV-PVT

year	Year (UTC)
month	Month, range 1..12 (UTC)
day	Day of month, range 1..31 (UTC)
hour	Hour of day, range 0..23 (UTC)
min	Minute of hour, range 0..59 (UTC)
sec	Seconds of minute, range 0..60 (UTC)
lon	Longitude
lat	Latitude
height	Height above ellipsoid
hMSL	Height above mean sea level

micro_ubx.py

simple read sec(UTC)

uart = UART(1, baudrate=9600, tx=26, rx=32)

parser = UbxParser()

while True:
    while uart.any():
        rxbuf = bytearray(uart.any())
        uart.readinto(rxbuf)

        nav_pvt = parser.parse(rxbuf)
        if nav_pvt:
        	print(nav_pvt._sec)

Reference

pyubx2

I was referring to the checksum calculation method.

https://github.com/semuconsulting/pyubx2