Python Programming for Raspberry Pi, Sams Teach Yourself in 24 Hours

b. setup(18, GPIO.OUT)

c. outout(18)

d. wait_for_edge(18, GPIO.FALLING)

2. The GPIO pin numbers on the Raspberry Pi match the GPIO signal numbers on the Broadcom

chip. True or false?

3. What add_event_detect() parameter can you add to help prevent switch bounce?

Answers

1. b. The setup(18, GPIO.OUT) statement tells the Raspberry Pi to set the GPIO signal 18

for output.

2. False, so be careful when you’re writing your Python programs! You should always include the

setmode() function to define whether your code uses

3. Use the bouncetime parameter to set a time limit between event detections. This will help

reduce switch bounce problems.