Arduino Lesson 2 - digitalRead & digitalWrite

The second in a series of tutorials to help you understand the basics of the Arduino uno. In this session we will be going over digitalReads and digitalWrites and how to use them in the "real world".

I hope you enjoy the video!

[joeyGalileoHotto]

I've studied countless hours about Arduino; My final on Mechatronics is on Thursday with one of the questions being on Arduinos and I spent the whole semester in lab struggling with this because I didn't know the basics, and I finally get it thanks to these tutorials.

[russellford]

Brilliant tutorial. This was my first practical lesson on the Arduino and it gave me a basic understanding to get me up and running. Only got my kit out 30 minutes ago and already I'm uploading Sketches and dimming LED's. Thank You

[aashoosharma]

this is a gem for the beginners of the

[pcollins]

Good stuff. Easy to follow along. I've been wanting to add motion to my metal sculptures for years and your videos has finally helped me break through the knowledge wall :-)

[henniekruger]

i watch a lot of videos and yours is by far the best explained in detail. I could follow perfectly what you were doing ...thanks

[stevefranklin]

It saddens me to see that such a fantastic series of videos like this has garnered such a small following.

Ben, thank you for the effort you put in. You deserve way more than this. Perhaps you could weave in some conspiracy about flat earth in the video and you'd get millions of views.

[maryvillegas]

Please make more Arduino videos. You are an excellent teacher. I have learned a lot.

[susbaka]

here is the code:

int led = 12;
int button = 13;

void setup() {
pinMode(led, OUTPUT);
pinMode(button, INPUT);
}

void loop() {
digitalWrite(led, LOW);
delay(1000); //how long its off
digitalWrite(led, HIGH);
delay(1000); //how long its on
}

[nihalmohammed]

Brilliant tutorials and thank you for the playlist. I have a doubt in digitalRead. In the circuit (7:24), why we need a resistor for the switch? Is only Pin 2 and 5V enough?

[sptmbrth]

Your tutorials are awesome! Thanks for that!

[raymaas]

Excellent videos, thanks for the help!

[shogunz]

with constants like the "led" you used, it's better to use const instead of int. Anyway good tutorial!

[equinox]

i love your videos i understand it perfectly

[drem]

8:08 int button=1
Forgive me if I'm wrong but shouldn't it be int button=2 according to schematic? 7:43

[nicholastamas]

all of this was easy and simple to follow except for the last part when you are talking about certain pins being pulled high. for some reason i dont understand what you mean by this.

[aiymankhan]

How can I read the status of an OUTPUT pin?

[obsidiantechz]

how to include 2 digital pins as OUTPUT?

[_AREL]

Nice tutorial man. Question

Can we use DigitalWrite as input?

[harambematata]

where can I buy Orange Pip seems intersting

[natemay]

how do i go about using digitalwrite to program in a button? i want to use the arduino to control a connection elsewhere to complete a circuit in a device, remotely. i dont want voltage to be present, but to only close the loop between the two wires set to the appropriate pins?