Internet of Things with Python

Test your knowledge

1. When we send a high value (1) to a GPIO pin configured as output, the GPIO pin will have:
   1. 0 V.
   2. 6 V.
   3. The voltage specified in the position in which the IOREF jumper is located.
2. An instance of the mraa.Gpio class represents:
   1. A single GPIO pin in the board.
   2. All the I/O pins in the board.
   3. Two GPIO pins in the board.
3. When we create an instance of the mraa.Gpio class, we must specify:
   1. The pin number as an argument.
   2. The specific board and a pin number as arguments.
   3. The pin number and the desired direction: mraa.DIR_OUT or mraa.DIR_IN.
4. Which of the following lines write a high value to the GPIO pin configured as output with the instance of mraa.Gpio named gpio10:
   1. gpio10.write(0)
   2. gpio10.write(1)
   3. gpio10.write(mraa.HIGH_VALUE)
5. Which of the following ...