import pymodbus
import serial
from pymodbus.pdu import ModbusRequest
from pymodbus.client.sync import ModbusSerialClient as ModbusClient
# initialize a serial RTU client instance
from pymodbus.transaction import ModbusRtuFramer

# def checkProxCounter():
count = 0
result = 0

# UART.setup("UART1")
client = ModbusClient(method='rtu', port='COM11',
                      parity='N', stopbits=1, bytesize=8, baudrate=9600, timeout=0.3)

try:
    if client.connect():
        print("Port open")
        result = client.read_holding_registers(
            address=0x00, count=4, unit=0x01)
        print("Result : ")
        print(result.registers)
        """ blah = client.read_discrete_inputs(1, 8)

        if blah != None:
            print("{}: {}".format("Blah", blah.bits[0])) """

        if result != None:
            count = int(str(result.registers[0]), 16) + \
                int(str(result.registers[1]), 16)
            print("{}: {}".format("Count", count))
        else:
            print("results were none")
        client.close()
    else:
        print("Port failed to open")
        count = -2

except:
    print("Unknown Exception")
    raise

print(count)