Location(GNSS) by CAT-M Module(U128)

cat-m-ngss.py

import machine
import re
import time
from m5stack import *
from m5ui import *
from uiflow import *

lcd.setRotation(3)
setScreenColor(0x000000)
lcd.font(lcd.FONT_Default)

response = None
clbsResult = None
batteryColor = 0x000000


def batteryStatus():
  if axp.getChargeState():
    batteryStatus = 'Charging'
    batteryColor = 0x00ff00
  else:
    batteryRemain = map_value(axp.getBatVoltage(), 3.7, 4.1, 0, 100)
    if 75 <= batteryRemain <= 100:
      batteryColor = 0x00ff00
    elif 50 <= batteryRemain <= 74:
      batteryColor = 0xffd700
    elif 25 <= batteryRemain <= 49:
      batteryColor = 0xffa103
    elif 0 <= batteryRemain <= 24:
      batteryColor = 0xff0000

    batteryStatus = str(batteryRemain) + '%'
  lcd.print(str('Battery: ') + batteryStatus, 0, 5, batteryColor)


def terminateApplication():
  lcd.clear()
  lcd.print('Terminating...', 0, 5, 0xff0000)
  uart1.write('AT+CNACT=0,0'+"\r\n")
  wait(10)
  lcd.print('Connection Deactivated.\nDevice will reboot.', 0, 25, 0x00ff00)
  wait(3)
  machine.reset()


btnB.wasPressed(terminateApplication)

# Connect to CAT-M Unit and Communication(SIM)
batteryStatus()
uart1 = machine.UART(1, tx=32, rx=33)
uart1.init(115200, bits=8, parity=None, stop=1)
uart1.write('AT+CNACT=0,1'+"\r\n")
lcd.print('Connection Activating.', 0, 25, 0x00ff00)
wait(10)
lcd.clear()
batteryStatus()
lcd.print('Positioning.', 0, 25, 0x00ff00)

# Get Location and datetime
while True:
  uart1.write('AT+CLBS=4,0'+"\r\n")
  if uart1.any():
    response = (uart1.readline()).decode()
    if re.match(".*\+CLBS: 0.+", response):
      lcd.clear()
      batteryStatus()
      M5Led.on()
      wait_ms(100)
      M5Led.off()
      speaker.setVolume(1)
      speaker.tone(432, 150)
      clbsResult = response.split(',')
      lcd.print('DateTime(UTC):', 0, 40, 0xffffff)
      lcd.print(clbsResult[4] + ' ' + clbsResult[5], 0, 60, 0xffffff)
      lcd.print('Latitude: ' + clbsResult[2], 0, 80, 0xffffff)
      lcd.print('Longitude: ' + clbsResult[1], 0, 100, 0xffffff)
  wait(60)