1  // SPDX-FileCopyrightText: 2022 Limor Fried for Adafruit Industries
 2  //
 3  // SPDX-License-Identifier: MIT
 4  
 5  #include "Adafruit_TestBed.h"
 6  
 7  extern Adafruit_TestBed TB;
 8  
 9  void setup() {
10    Serial.begin(115200);
11    //while (!Serial) { yield(); delay(10); }     // wait till serial port is opened
12    delay(100);  // RP2040 delay is not a bad idea
13  
14    Serial.println("KB2040 self-tester!");
15  
16    TB.neopixelPin = 17;
17    TB.neopixelNum = 1;
18    
19    TB.begin();
20  }
21  
22  uint8_t x = 0;
23    
24  void loop() {
25    TB.setColor(TB.Wheel(x++));
26    delay(10);
27  }