def testWaitForFalling(self):
def makelow():
GPIO.output(LOOP_OUT, GPIO.LOW)
GPIO.output(LOOP_OUT, GPIO.HIGH)
t = Timer(0.1, makelow)
t.start()
GPIO.wait_for_edge(LOOP_IN, GPIO.FALLING)
def testWaitForRising(self):
def makehigh():
GPIO.output(LOOP_OUT, GPIO.HIGH)
GPIO.output(LOOP_OUT, GPIO.LOW)
t = Timer(0.1, makehigh)
t.start()
GPIO.wait_for_edge(LOOP_IN, GPIO.RISING)
def test_loopback(self):
"""Test output loops back to another input"""
GPIO.setup(LOOP_IN, GPIO.IN, pull_up_down=GPIO.PUD_OFF)
GPIO.setup(LOOP_OUT, GPIO.OUT, initial=GPIO.LOW)
self.assertEqual(GPIO.input(LOOP_IN), GPIO.LOW)
GPIO.output(LOOP_OUT, GPIO.HIGH)
self.assertEqual(GPIO.input(LOOP_IN), GPIO.HIGH)
GPIO.cleanup()
def test_outputread(self):
"""Test that an output() can be input()"""
GPIO.setup(LED_PIN, GPIO.OUT)
GPIO.output(LED_PIN, GPIO.HIGH)
self.assertEqual(GPIO.input(LED_PIN), GPIO.HIGH)
GPIO.output(LED_PIN, GPIO.LOW)
self.assertEqual(GPIO.input(LED_PIN), GPIO.LOW)
GPIO.cleanup()
def testExceptionInCallback(self):
self.run_cb = False
def cb(channel):
with self.assertRaises(ZeroDivisionError):
self.run_cb = True
a = 1/0
GPIO.output(LOOP_OUT, GPIO.LOW)
GPIO.add_event_detect(LOOP_IN, GPIO.RISING, callback=cb)
time.sleep(0.001)
GPIO.output(LOOP_OUT, GPIO.HIGH)
time.sleep(0.001)
self.assertEqual(self.run_cb, True)
GPIO.remove_event_detect(LOOP_IN)
def runTest(self):
# Test mode not set (BOARD or BCM) exception
with self.assertRaises(RuntimeError) as e:
GPIO.setup(LED_PIN, GPIO.OUT)
self.assertEqual(str(e.exception), 'Please set pin numbering mode using GPIO.setmode(GPIO.BOARD) or GPIO.setmode(GPIO.BCM)')
GPIO.setmode(GPIO.BOARD)
# Test not set as OUTPUT message
with self.assertRaises(RuntimeError) as e:
GPIO.output(LED_PIN, GPIO.HIGH)
self.assertEqual(str(e.exception), 'The GPIO channel has not been set up as an OUTPUT')
GPIO.setup(LED_PIN, GPIO.IN)
# Test setup(..., pull_up_down=GPIO.HIGH) raises exception
with self.assertRaises(ValueError):
GPIO.setup(LED_PIN, GPIO.IN, pull_up_down=GPIO.HIGH)
# Test 'already in use' warning
GPIO.cleanup()
with open('/sys/class/gpio/export','wb') as f:
f.write(str(LED_PIN_BCM).encode())
with open('/sys/class/gpio/gpio%s/direction'%LED_PIN_BCM,'wb') as f:
f.write(b'out')
with open('/sys/class/gpio/gpio%s/value'%LED_PIN_BCM,'wb') as f:
f.write(b'1')
with warnings.catch_warnings(record=True) as w:
GPIO.setup(LED_PIN, GPIO.OUT) # generate 'already in use' warning
self.assertEqual(w[0].category, RuntimeWarning)
with open('/sys/class/gpio/unexport','wb') as f:
f.write(str(LED_PIN_BCM).encode())
GPIO.cleanup()
# test initial value of high reads back as high
GPIO.setup(LED_PIN, GPIO.OUT, initial=GPIO.HIGH)
self.assertEqual(GPIO.input(LED_PIN), GPIO.HIGH)
GPIO.cleanup()
# test initial value of low reads back as low
GPIO.setup(LED_PIN, GPIO.OUT, initial=GPIO.LOW)
self.assertEqual(GPIO.input(LED_PIN), GPIO.LOW)
GPIO.cleanup()
def testRisingEventDetected(self):
GPIO.output(LOOP_OUT, GPIO.LOW)
GPIO.add_event_detect(LOOP_IN, GPIO.RISING)
time.sleep(0.001)
self.assertEqual(GPIO.event_detected(LOOP_IN), False)
GPIO.output(LOOP_OUT, GPIO.HIGH)
time.sleep(0.001)
self.assertEqual(GPIO.event_detected(LOOP_IN), True)
GPIO.output(LOOP_OUT, GPIO.LOW)
time.sleep(0.001)
self.assertEqual(GPIO.event_detected(LOOP_IN), False)
GPIO.remove_event_detect(LOOP_IN)
#!/usr/bin/env python
import RaPi.GPIO as GPIO
import time
#LED Mode BCM
#PINs = [2,3,4,14,15,17,18,27,22,23,24,10,9,25,11,8,7,0,1,5,6,12,13,19,16,26,20,21]
#[2,3,4,14,18,23,24,10,9,11,8,7,0,1,5,6,12,13,19,16,26,20,21]
#[15,17,27,22,25]
#GPIO.setmode(GPIO.BCM)
#LED Mode BOARD
#PINs = [3,5,7,8,10,11,12,13,15,16,18,19,21,22,23,24,26,27,28,29,31,32,33,35,36,37,38,40]
#[3,5,7,8,12,16,18,19,21,23,24,26,27,28,29,31,32,33,35,36,37,38,40]
#[10,11,13,15,22]
PINs = [10]
GPIO.setmode(GPIO.BOARD)
while True:
for PIN_NUM in range(len(PINs)):
try:
GPIO.setup(PINs[PIN_NUM], GPIO.OUT)
except:
print("Failed to setup GPIO %d", PIN_NUM)
GPIO.output(PINs[PIN_NUM], True)
time.sleep(0.5)
GPIO.output(PINs[PIN_NUM], False)
time.sleep(0.5)
def makehigh(): print "\n value_%d = %d\n" %(channel,GPIO.input(channel)) GPIO.output(PIN_NUM,False) print "\n value_%d = %d\n" %(PIN_NUM,GPIO.input(PIN_NUM))
#!/usr/bin/env python import RaPi.GPIO as GPIO import time from threading import Timer PIN_NUM = 12 channel = 7 GPIO.setmode(GPIO.BOARD) GPIO.setup(PIN_NUM,GPIO.OUT) GPIO.output(PIN_NUM,True) print "\n value_%d = %d\n" %(PIN_NUM,GPIO.input(PIN_NUM)) GPIO.setup(channel,GPIO.IN,GPIO.PUD_DOWN) print "\n value_%d = %d\n" %(channel,GPIO.input(channel)) def makehigh(): print "\n value_%d = %d\n" %(channel,GPIO.input(channel)) GPIO.output(PIN_NUM,False) print "\n value_%d = %d\n" %(PIN_NUM,GPIO.input(PIN_NUM)) GPIO.wait_for_edge(channel, GPIO.RISING) t = Timer(1,makehigh) t.start()
def test_output_on_input(self):
"""Test output() can not be done on input"""
GPIO.setup(SWITCH_PIN, GPIO.IN)
with self.assertRaises(RuntimeError):
GPIO.output(SWITCH_PIN, GPIO.LOW)
GPIO.cleanup()
def testAddEventCallback(self):
def cb(channel):
self.callback_count += 1
# falling test
self.callback_count = 0
GPIO.output(LOOP_OUT, GPIO.HIGH)
GPIO.add_event_detect(LOOP_IN, GPIO.FALLING)
GPIO.add_event_callback(LOOP_IN, cb)
time.sleep(0.001)
for i in range(5):
GPIO.output(LOOP_OUT, GPIO.LOW)
time.sleep(0.001)
GPIO.output(LOOP_OUT, GPIO.HIGH)
time.sleep(0.001)
self.assertEqual(self.callback_count, 5)
GPIO.remove_event_detect(LOOP_IN)
# rising test
self.callback_count = 0
GPIO.output(LOOP_OUT, GPIO.LOW)
GPIO.add_event_detect(LOOP_IN, GPIO.RISING, callback=cb)
time.sleep(0.001)
for i in range(5):
GPIO.output(LOOP_OUT, GPIO.HIGH)
time.sleep(0.001)
GPIO.output(LOOP_OUT, GPIO.LOW)
time.sleep(0.001)
self.assertEqual(self.callback_count, 5)
GPIO.remove_event_detect(LOOP_IN)
# both test
self.callback_count = 0
GPIO.output(LOOP_OUT, GPIO.LOW)
GPIO.add_event_detect(LOOP_IN, GPIO.BOTH, callback=cb)
time.sleep(0.001)
for i in range(5):
GPIO.output(LOOP_OUT, GPIO.HIGH)
time.sleep(0.001)
GPIO.output(LOOP_OUT, GPIO.LOW)
time.sleep(0.001)
self.assertEqual(self.callback_count, 10)
GPIO.remove_event_detect(LOOP_IN)
def makelow():
GPIO.output(LOOP_OUT, GPIO.LOW)
def makehigh():
GPIO.output(LOOP_OUT, GPIO.HIGH)
#!/usr/bin/env python import RaPi.GPIO as GPIO import time PIN_0 = 3 PIN_1 = 5 #GPIO.setmode(GPIO.BCM) GPIO.setmode(GPIO.BOARD) GPIO.setup(PIN_0,GPIO.OUT) GPIO.setup(PIN_1,GPIO.IN) while True: GPIO.output(PIN_0,True) print "\n value = %d\n" %(GPIO.input(PIN_1)) time.sleep(1) GPIO.output(PIN_0,False) print "\n value = %d\n" %(GPIO.input(PIN_1)) time.sleep(1) GPIO.cleanup()
