trinket-serial.ino

#include "TrinketFakeUsbSerial.h"
 
void setup()
{
  TFUSerial.begin();
}
 
void loop()
{
  TFUSerial.task(); // this should be called at least once every 10 ms
 
  if (TFUSerial.available()) {
    char c = TFUSerial.read();
    if (c == 'a')
    {
      TFUSerial.println("hello world");
    }
    else if (c == 'b')
    {
      TFUSerial.println(millis(), DEC);
    }
  }
}