notes on a very brief Arduino UNO check up

This post provides a concise guide for evaluating the functionality of an Arduino UNO board. It outlines two primary procedures. On the one hand explores the onboard voltage regulator's performance and on the other hand presents a simple Arduino sketch designed to blink the onboard LED, serving as a basic test to confirm the board's operational status. The post also includes references for further reading, such as the Arduino documentation on power pins. This resource is particularly useful for individuals seeking a quick assessment of their Arduino UNO's health, ensuring that both the hardware and software components are functioning correctly.


Part I (checking onboard voltage regulator)

Materials


Example


Additional illustrative examples







Part II (uploading a sketch in Arduino IDE)

Sketch 

void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off
delay(1000); // wait for a second
}

Example


References



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