# The MIT License (MIT) # # Author: Assam Boudjelthia # Copyright (c) 2018 Rohm Semiconductor. # # Permission is hereby granted, free of charge, to any person obtaining a copy of # this software and associated documentation files (the "Software"), to deal in # the Software without restriction, including without limitation the rights to # use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of # the Software, and to permit persons to whom the Software is furnished to do so, # subject to the following conditions: # # The above copyright notice and this permission notice shall be included in all # copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS # FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR # COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. import time, datetime import sys import signal import atexit from upm import pyupm_bh1792 def main(): bh1792_sensor = pyupm_bh1792.BH1792() bh1792_sensor.SoftReset() bh1792_sensor.EnableSyncMode(256, 32) bh1792_sensor.StartMeasurement() # Prevent stack printing on CTRL^C def SIGINTHandler(signum, frame): raise SystemExit def exitHandler(): print("Exiting") sys.exit(0) atexit.register(exitHandler) signal.signal(signal.SIGINT, SIGINTHandler) sampleCounter = 10 waitTime = bh1792_sensor.GetMeasurementTimeMS() print("Heart beat sensor readings: ") while sampleCounter > 0: [off, on] = bh1792_sensor.GetGreenData() print ("off: %d, on: %d, timestamp: %d msec" % (off, on, time.time() * 1000)) time.sleep(waitTime / 1000.0) sampleCounter -= 1 if __name__ == '__main__': main()