import serial
import io

import time  # For sleep, clock, time and perf_counter
from datetime import datetime, timedelta

# ser = serial.Serial('COM4', 115200, timeout=1)
# ser = serial.Serial('/dev/ttyUSB0', 115200, timeout=1)
ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=1)
# sio = io.TextIOWrapper(io.BufferedRWPair(ser, ser), line_buffering=True, newline='\r\n')


# ser.write(b'dofile("bits_converging.lua")\r')
# ser.write(b'dofile("microwire.lua")\r')
# ser.write(b'dofile("lmx2487lib.lua")\r')
# ser.write(b'dofile("Frequency_Settings.lua")\r')

# ser.write(b'settings = initSettings()\r')
# ser.write(b'settings = set_lmx2487_to_Frequency (startfreq, settings)\r')


# ser.write(b'\rprint(2+2)\r')
# ser.write(b'print(node.heap())\r')
# s = ser.read(100)

# print("1st reply")
# print(s)
# line = ser.readline()
# print(line)
# line = ser.readline()
# print(line)
# line = ser.readline()
# print(line)
# line = ser.readline()
# print(line)

def sendSerialCmd(cmd):
    start = datetime.now()
    ser.write(bytes(cmd+'\r','ascii'))
    # sio.write(cmd+'\r')
    line = ser.read_until(terminator=b'> ')
    print(line)
    stop = datetime.now()
    runTime = (stop-start).seconds + float((stop-start).microseconds)/1000000
    print("Command: " + cmd + " runtime %s seconds." % (runTime) )

sendSerialCmd("print(2+3)")

line = ser.readline()
print(line)

start = datetime.now()
for i in range(1,10):
    sendSerialCmd("print(node.heap())")
stop = datetime.now()
runTime = (stop-start).seconds + float((stop-start).microseconds)/1000000
print("runtime %s seconds." % (runTime) )


ser.close()