Chapter 5

1. SPI (Serial Peripheral Interface Circuit). LED strips and matrices are common examples.
2. You can refer to the device's official datasheet, or use the command-line tool i2cdetect, which lists the addresses of all connected I2C devices.
3. Make sure you are using the correct pin numbering scheme expected by the library, and/or make sure you have configured the library to use the scheme you prefer if the library provides this option.
4. The driver library is not built upon PiGPIO and therefore does not support remote GPIO.
5. False. All GPIO pins are rated for 3.3 volts. Connecting any voltage higher than this can damage your Raspberry Pi.
6. The library you are using to drive the servo is most likely using software PWM to generate the PWM signals for the servo. Software PWM signals can be distorted when the Raspberry Pi's CPU gets busy.
7. If you are powering the servos from the 5-volt pin of your Raspberry Pi, it'll indicate that you are drawing too much power, effectively robbing...