M5Stack Core2 and GPS Module (my solution with UIFlow)
I'm using a stackable GPS unit with external antenna. Under UIFLow I've configured it to TX=14 and RX=13 and its working.
In order to get decimal return values for location data, which I need to transport into a MQTT publisher protocol, I wrote a conversion function in a “blockly” execute statement interpreted as MicroPython. Yes, yet missing some support for Altitude. Ideas for improvement of the logic are welcome.
Hope this is helpful (see the code below):
# GPS location conversion # convert into decimal def conversion(inp): minus = False parts = inp.split('.') ddmm = parts ss = parts last_char = ss[-1] if (last_char == 'W') or (last_char == 'S'): minus = True # remove last character ss = ss[:-1] last_two_char = ddmm[-2:] mm = last_two_char if len(ddmm) == 3: dd = ddmm[:1] if len(ddmm) == 4: dd = ddmm[:2] if len(ddmm) == 5: dd = ddmm[:3] if minus: dd = int(dd) * -1 minf = float(mm + '.' + ss) secsmm = minf / 60 # case South, or West invert if minus: deci = float(dd - secsmm) else: deci = float(dd + secsmm) return deci