MEMS Inclinometer Time Setting Script

mems_timeset.py

import serial
import sys
from time import sleep
from datetime import datetime

def find_serial_ports():
    """ Lists serial port names

        :raises EnvironmentError:
            On unsupported or unknown platforms
        :returns:
            A list of the serial ports available on the system
    """
    if sys.platform.startswith('win'):
        ports = ['COM%s' % (i + 1) for i in range(256)]
    elif sys.platform.startswith('linux') or sys.platform.startswith('cygwin'):
        # this excludes your current terminal "/dev/tty"
        ports = glob.glob('/dev/tty[A-Za-z]*')
    elif sys.platform.startswith('darwin'):
        ports = glob.glob('/dev/tty.*')
    else:
        raise EnvironmentError('Unsupported platform')

    result = []
    for port in ports:
        try:
            s = serial.Serial(port)
            s.close()
            result.append(port)
        except (OSError, serial.SerialException):
            pass
    return result

connected_devices = find_serial_ports()


def connect_ports():
    print('Serial Devices Connected\n---------------------------')
    [print(l) for l in connected_devices]
    print('---------------------------\n')

    com_port = str(input('Type port to use: '))
        
    if com_port in connected_devices:
        return com_port
    else:
        connect_ports()

print('')
print('MEMS Inclinometer Time Set Utility')
print('Connect the inclinometer to the computer now.')
print('')

use_time = input('Enter U for UTC time or L for local time: ').upper()
if use_time == 'U':
    use_utc = True
elif use_time == 'L':
    use_utc = False
else:
    print('Invalid Entry!')
    sys.exit()

baud = int(input('Baud Rate: '))
print('')
instrument_com_port = connect_ports()
inst_ser = serial.Serial(instrument_com_port, baud, timeout=15)

sleep(2)

if use_utc:
    time = datetime.utcnow()
else:
    time = datetime.now()

time_str = f'ST {time.year} {time.month:02} {time.day:02} {time.hour:02} {time.minute:02} {time.second:02}\r\n'.encode()
inst_ser.write(time_str)

sleep(1)
print(f'Complete {time}')
inst_ser.close()