Hi guys i don't know why the only block runs is my first function.
i am trying to pass my coin_counter last value to the 2nd function but my first function is not passing the value after it's release.
and also it doesn't print to the console
import RPi.GPIO as GPIO
import time
import threading
GPIO.setmode(GPIO.BCM)
GPIO.setup(27,GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
lock = threading.Lock()
counter = 1
pulse = 0
def coin_counter():
global counter
lock.acquire()
try:
while True:
time.sleep(.1)
GPIO.wait_for_edge(27, GPIO.RISING)
#print("Pulse comming ! (%s)") %counter
counter += 1
return counter
finally:
lock.release()
print(coin_counter())
def get_pulse_count():
while True:
print('Hello World!')
try:
coincounter = threading.Thread(target=coin_counter)
getpulse = threading.Thread(target=get_pulse_count)
coincounter.start()
getpulse.start()
except KeyboardInterrupt:
coincounter.stop()
getpulse.stop()
GPIO.cleanup()
I think the problem in line print(coin_counter())
. Its should be removed because we have infinite loop in main thread ( coin_counter()
call). No any code will be executed after this line. If we remove this line and add sleep
into get_pulse_count()
then it works. Also return counter
does not required if you passing value through global variable counter
.
I think this resolve the problem. or?
import RPi.GPIO as GPIO
import time
import threading
GPIO.setmode(GPIO.BCM)
GPIO.setup(27,GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
lock = threading.Lock()
counter = 1
pulse = 0
def coin_counter():
global counter
global pulse
lock.acquire()
try:
time.sleep(.1)
GPIO.wait_for_edge(27, GPIO.RISING)
print("Pulse comming ! ", counter)
counter += 1
pulse = counter
finally:
lock.release()
def get_pulse_count():
global pulse
lock.acquire()
try:
print(pulse)
finally:
lock.release()
while True:
time.sleep(.1)
try:
coincounter = threading.Thread(target=coin_counter)
coincounter.start()
getpulse = threading.Thread(target=get_pulse_count)
getpulse.start()
except KeyboardInterrupt:
coincounter.stop()
getpulse.stop()
GPIO.cleanup()
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