// Challenge: Make printf() print to the Serial Monitor
//
// Hint: https://www.nongnu.org/avr-libc/user-manual/group__avr__stdio.html
void setup() {
Serial.begin(115200);
printf("Hello, printf()!\n");
}
void loop() {
printf("Millis: %lu\n", millis());
delay(1000);
}