Description
In this lab we basically checked that our circuit board worked by making a simple circuit to make an LED light blink in certain determinable intervals. I used a Arduino Uno microcontroller, 220 ohm resistor, a red LED< 22 guage solid core wires, and a solderless breadboard to create the circuit shown below. I used example blink code from the Arduino program and edited the time input to create varying intervals of flashing. Below you will see the components used, the code, and a picture of the circuit.
Components Used
- 1 Arduino Uno microcontroller
- 1 Breadboard
- 1 220 ohm resistor
- 1 Red LED
- 2 22 guage wire
- 1 smaller connecting wire
Code
/*
Blink
Turns on an LED on for one second, then off for one second, repeatedly.
This example code is in the public domain.
*/
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;
// the setup routine runs once when you press reset:
void setup() {
// initialize the digital pin as an output.
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(5000); // wait for 5 second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(500); // wait for half of a second
}
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