/*
* Upload Error: Error opening serial port '/dev/cu.usbmodem1421'
* Fix: Close Serial Monitor window, reopen after upload is done.
*
* Misc
* - On Micro, TX LED lights up when Serial print(), println() is called
* - Serial Monitor can be started after upload or reset
* - setup() runs once when you press reset or power the board
* - loop() is a run-loop
*
* Keyboard Shortcuts
* CS M Serial Monitor
*/
// const int kLedPin = LED_BUILTIN;
const int kLedPin = 10;
const long kBlinkInterval = 400;
const int kMaxLogCount = 10;
unsigned long previousMillis = 0;
boolean onceToken = false;
int ledState = LOW;
int logCount = 0;
void setup() {
const String kBoard = "Arduino Micro, 5V";
Serial.begin(9600);
delay(6000); // delay for serial monitor intialization
Serial.println(kBoard);
pinMode(kLedPin, OUTPUT); // LED output
if (kLedPin == LED_BUILTIN) {
Serial.print("Built-In ");
}
Serial.print("LED Pin: ");
Serial.println(kLedPin);
Serial.print("LED Blink Interval: ");
Serial.println(kBlinkInterval);
Serial.print("Max Log Count: ");
Serial.println(kMaxLogCount);
}
void loop() {
if (onceToken == false) {
Serial.println("");
Serial.println("Loop started");
onceToken = true;
}
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= kBlinkInterval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
log("On");
}
else {
ledState = LOW;
log("Off");
}
digitalWrite(kLedPin, ledState);
}
}
void log(String message) {
if (logCount < kMaxLogCount) {
Serial.println(message);
logCount++;
}
}
// Output
Arduino Micro, 5V
LED Pin: 10
LED Blink Interval: 400
Max Log Count: 10
Loop started
On
Off
On
Off
On
Off
On
Off
On
Off
