上QQ阅读APP看书，第一时间看更新
The Adafruit Circuit Playground Express layout
The following diagram shows the locations of the LEDs that will be used in this chapter:
Courtesy of adafruit.com
The pin 13 LED is a simple single red LED that will be used in the first recipe. There are a total of 10 NeoPixels on the board. Each NeoPixel is made up of a red, green, and blue LED. By controlling the individual brightness of each of these LEDs, you will be able to set any NeoPixel to a specific color.