if cycle > 0:
distance += wheel_c
cycle -= 1
multiplier = 3600 / elapse
speed = (wheel_c * multiplier) / 1000
rpm = 1 / elapse * 60
# speed = 2 * 3.14 * 2.5 * rpm * (60 / 1000)
start = time.time()
# ------------------------------------lcd-----------------------------------------------------#
# RS, RW, E, D0, D1, D2, D3, D4, D5, D6, D7):
mylcd.startDisplay()
mylcd.ShowText("Distance: ")
mylcd.ShowText("Speed: ")
# ----------------------------------------------------------------------------------------------------------------------#
try:
print('Initializing Speedometer! Starting in 3 seconds!')
time.sleep(1)
print('3 seconds...')
time.sleep(1)
print('2 seconds...')
time.sleep(1)
print('1 seconds...')
time.sleep(1)
GPIO.add_event_detect(hall,
GPIO.FALLING,
elapse = time.time() - start
pulse -= 1
if cycle > 0:
distance += wheel_c
cycle -= 1
multiplier = 3600 / elapse
speed = (wheel_c * multiplier) / 1000
rpm = 1 / elapse * 60
start = time.time()
mylcd.startDisplay()
mylcd.ShowText("Distance: ")
mylcd.ShowText("Speed: ")
GPIO.add_event_detect(hall, GPIO.FALLING, callback=get_pulse, bouncetime=20)
def printstuff():
currentTime = datetime.datetime.today()
DB_Layer = DbClass()
DB_Layer.saveSensorValuesToDatabase(distance, speed, currentTime)
print(
'rpm:{0:.2f} speed:{1:.2f} distance:{2} elapse:{3:.4f} multiplier:{4:.4f}'
.format(rpm, speed, distance, elapse, multiplier))
# speed = round(speed, 2)
mylcd.ShowText(distance)
mylcd.ShowText(speed)
time.sleep(2)
