Chapter 9, Programming RGB Strips in Python

• When soldering, do you heat the pad, the pin, or the solder?
  • You heat the pad and pin first, so the solder melts and flows into them.
• Why do you not connect the LED strip directly to the Raspberry Pi?
  • The LED strip requires 5V and the Pi is running 3.3V. At best, it will communicate poorly; at worst, it could damage the Pi. Use the logic-level shifter.
• Why are we using fractions of the number of LEDs in the LED class for our ranges?
  • The number of LEDs in different strips and configurations can change, for example, the LED Shim has 24 LEDs. This means one behavior will work with different LED setups.
• What is the difference between a HSV color with a saturation of 0 and a saturation at the full range?
  • At saturation 0, the color will be gray or have nearly no color. At the full range, the color will be very vivid.

...