serial2csv.py

# script to read data from serial port (typically sent by Arduino)
# The print it in terminal and save it to a csv file
# Iyad Aldaqre
# 24.11.2018

import serial
import time
import csv

device = '/dev/cu.usbmodem14101'
ser = serial.Serial(device, 9600)
print("Connection successful with:", device)
gsr_list = []
startTime = time.time()
print("Recording gsr data...")
print("Press Ctrl + c to stop")

try:
    while True:
        currentTime = time.time() - startTime
        gsr_list.append([currentTime, ser.readline()])
except KeyboardInterrupt:
    if len(gsr_list) > 0:
        with open('serial_data.csv', 'w') as f:
            w = csv.writer(f, delimiter=";")
            w.writerow(['ts','gsr']) # header
            for row in gsr_list: # iterate all items
                w.writerow(row) # write row in csv
        print("\nSaved gsr data successful")