uart code cpy

gistfile1.txt

#NMEA Reader for Circuit Python
#Written by Mike Letsky

import busio
import board

def getPosition():
    global gpsUart
    global byte
    global sync
    global msgId
    global byteArray
    gpsUart = busio.UART(board.TX, board.RX,baudrate=9600)

    #read each byte until we find a start byte
    sync = [0x24]
    msgId = 'GNS'
    byteArray = bytearray(100)
    print('debug 1')
   ## while msgId in byteArray is False:
    ## find sync
    newbyteArray = bytearray(100)
    
    byteArray= gpsUart.readline()
    gpsMessage=str(byteArray).split(',')
    while (msgId in byteArray) is False:
        byteArray= gpsUart.readline()
       ## newbyteArray= gpsUart.read(1)
      ##  print(newbyteArray)
        print(byteArray)
    gpsMessage=str(byteArray).split(',')
   ## print(byteArray)
    startPos=0
   ## startPos = gpsMessage.index(msgId)
   ## print(startPos)
##    msgId=gpsMessage[startPos]
##    print('msgId ' + msgId)
##    time=gpsMessage[startPos+1]
##    lat=gpsMessage[startPos+2]
##    NS=gpsMessage[startPos+3]
##    lon=gpsMessage[startPos+4]
##    EW=gpsMessage[startPos+5]
##    posMode=gpsMessage[startPos+6]
##    print('lat '+lat)
##    print('lon '+lon)
##    print('time '+time)
##    print('posMode '+ posMode)

    return lat