def test_wait_for_edge_not_configured_for_input():
with patch("OPi.GPIO.sysfs"):
GPIO.setmode(GPIO.BOARD)
GPIO.setup(12, GPIO.OUT)
with pytest.raises(RuntimeError) as ex:
GPIO.wait_for_edge(12, GPIO.RISING)
assert str(ex.value) == "Channel 12 is configured for output"
def firstFunction():
global counter
global ts
global counting
count = 1
counter = 0
ts = time.time()
while True:
if (count == 1):
GPIO.wait_for_edge(27, GPIO.RISING)
counting = 1
counter += 1
print("Pulse comming ! (%s)") % counter
ts = time.time()
def test_wait_for_edge_completes():
with patch("OPi.GPIO.sysfs"):
GPIO.setmode(GPIO.BOARD)
GPIO.setup(12, GPIO.IN)
with patch("OPi.GPIO.event") as mock:
mock.blocking_wait_for_edge.return_value = 1
assert GPIO.wait_for_edge(12, GPIO.BOTH) == 12
mock.blocking_wait_for_edge.assert_called_with(7, GPIO.BOTH, -1)
def main():
print('Main started')
button, led_button = setup_button()
try:
while True:
GPIO.output(led_button, 1)
print('Waiting for button')
GPIO.wait_for_edge(button, GPIO.RISING)
GPIO.output(led_button, 0)
raw_image = get_camera_image()
prepared_image = prepear_image(raw_image)
print_image(prepared_image)
wait_for_print_finish(led_button)
except KeyboardInterrupt:
print('Keyboard interrupt')
GPIO.cleanup()
finally:
print('Cleanup')
GPIO.output(led_button, 0)
GPIO.cleanup() # Double cleanup
print('Finished')
import time
import subprocess
GPIO.setmode(GPIO.BOARD)
#Select unused GPIO header pin to be used for shutdown
InputPin = 12 #PA07/PA_EINT7/SIM_CLK
LedOnPin = 13 #PA00/UART2_TX
# Set selected pin to input, need pullup resistor external in 3.3V and pin select.
GPIO.setup(InputPin, GPIO.IN)
# Set selected pin to output.
GPIO.setup(LedOnPin, GPIO.OUT)
GPIO.output(LedOnPin, 1)
if GPIO.input(InputPin):
print('Input was HIGH')
else:
print('Input was LOW')
# Wait for a button press on the selected pin (pin pulled to ground, falling edge)
GPIO.wait_for_edge(InputPin, GPIO.FALLING)
GPIO.output(LedOnPin, 0)
print("*** Netctl shutdown activated ***")
subprocess.call("/sbin/shutdown now",
shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
def test_wait_for_edge_not_configured():
with pytest.raises(RuntimeError) as ex:
GPIO.wait_for_edge(91, GPIO.RISING)
assert str(ex.value) == "Channel 91 is not configured"
