leftRight.py

import time
import serial
from collections import deque

# define serial communication
# ser = serial.Serial(
#         port = '/dev/ttyACM0',
#         baudrate = 9600,
#         parity = serial.PARITY_NONE,
#         stopbits = serial.STOPBITS_ONE,
#         bytesize = serial.EIGHTBITS,
#         timeout = 1
#         )

ser = serial.Serial('COM4', 9600)

# startup
print("please center your eyes on screen and relax, 5 seconds until measurements")
time.sleep(5)

# measure resting EEG
print("measuring...")
rest_avg = 0
counter = 0
while counter < 500:
    b = ser.readline()
    try:
        string_n = b.decode()
        string = string_n.rstrip()
        flt = float(string)
    except:
        flt = 0
    rest_avg += flt
    counter += 1
    time.sleep(0.0010416)
print(rest_avg)
rest_avg /= counter
print(rest_avg)

# measure left vs right
print("in 5 seconds, either move your eyes left, right or rest, movement will be displayed")
time.sleep(5)
message = " "
while 1:
    b = ser.readline()
    try:
        string_n = b.decode()
        string = string_n.rstrip()
        flt = float(string)
    except: 
        flt = rest_avg
    if flt < 0.98*rest_avg:
            print(str(flt) + ": right")
    elif flt > 1.02*rest_avg:
            print(str(flt) + ": left")
    else:
        print(str(flt) + ": resting")
    time.sleep(0.03472)