def __init__(self, port="COM7"):
self.lead_count = 0
target_port = port
# target_port = 'devA/tty.XXXXXXX' #change this to work on OSX
try:
self.nskECG = NeuroskyECG(target_port)
except serial.serialutil.SerialException:
print("Could not open target serial port: %s" % target_port)
sys.exit(1)
# optional call, default is already 1
self.nskECG.setHRVUpdate(1) # update hrv every 1 detected pulses
# want the LEAD_TIMEOUT to hold on to values between baseline and test, but reset between users
self.LEAD_TIMEOUT = 30 # reset algorithm if leadoff for more than this many seconds
self.cur_lead_on = False
self.cur_hrv = 0
