LESSON 10: Reading Analog Voltages with Arduino

[charleslangford]

I am a 74 year old just starting with arduino and found this tutorial a great help and got it up and running straight away. Thanks a lot.

[frankl]

Another great lesson, thanks Paul. I worked as a NC electronics tech at one time and am now retired and At 65 the Arduino keeps me busy. I tell my wife all the parts, modules and sensors are my LEGO’S. 57 years ago I got put together my first “LEGO” project which consisted of a battery, light bulb, wire and tape and I’m still playing with LEGO’S

[TwoMagadan]

mate - that was completely awesome! I wish I had you as a teacher when I was back in school!

[kurdim]

You are an amazing person. The way you teach, I mean your style makes me always focused and never bored! I wish all teachers were like you.
Here there is a very little interest in the Electronics as a whole, and so, one cannot expect to learn good solid informations and build knowledge which destroys our dreams and hobby! I totally depend on the Internet to learn about such things and people like you not only save us form paying unaffordable big $$$ but also makes it super easy and effective for us to learn and to share when we're ready.
Thanks a ton for sharing you're knowledge Mr.Paul, the world must be proud to have you as a teacher and I really wish that I was you student :D

Greetings from Kurdistan.

[richardkanters]

Dear Mr Whorter, I have been following the arduino lessons and I really must compliment you for the way you teach. English is not my mother lanquege, but you make it very easy for me to follows your teachings. My Math is getting I thank you Sir.

[JusMan]

I ordered the Arduino Uno yesterday, and already spent many hours with your lessons. Very helpfull. I'm programming in c# on school, and now i can use codes that is working in the real world!

I already connected 2 LEDS, with 1 program the red led is on with a voltage under 2, 5, the yellow led is on with a voltage above 2, 5 volts.

The second program i made a led dimmer for both leds. Very fun.

The only thing untill this lesson is that i still need to learn how to calculate voltages, Amps, its a bit hard but i will understand it soon i hope!

[iainsimpson]

I've been programming for nearly 60 years and I'm just learning how to use a breadboard and a digital multimeter. It's never too late - great course.

[jatinmali]

I always skip ads but I never skip ads on your channel, man you really deserve it

[jakubzak]

Wow, this is such a crucial episode for people like me who are learning about arduino for the first time! after i wrote the code that was shown in the first part of the video, i instantly started piecing together parts of previous code that i learnt, and created a system where depending on how high the resistance is, a respectable number of LED's will blink. if the analog reads 258, one LED is blinking, 516 and two are blinking (and so on...). Very cool episode :)

[Wiremunky]

I am impressed. A very detailed and accurate lesson for the code, devices, circuit, and how it can be used for more advanced projects. I have learned a lot and relearned( calculating slope). I can't wait to see more.

[erygion]

Great lesson Mr. Mcwhorter. I've been down this road before but have since gotten rusty...I took notes and you make it clear and concise. Thank you.

[andytomm]

Thank you for your excellent lessons, I am joining seven years later, also senior but as others say is "never late".

[singerkgreen]

You sir have claimed days of my time. I'm not a high school student, but I love these lessons all the same. Understanding the math is something that's kind of fun and also helps explain the inner workings of this stuff instead of just plugging the numbers in.

I started getting into Arduino and Raspberry Pi a few months ago and have thoroughly enjoyed it. I am currently building a quadcopter and a home automation/security system using them. Your videos have helped a ton in getting my ideas down on paper and how to write the code to control each component. I believe the future generations will begin learning to build things on their own more and go to stores to buy those things less...Wouldn't that be nice??

[fphenix]

Watch-out guys: the first minute is wrong (or badly explained), on the D* pins, in analogWrite "mode", it is only the "apparent"/average voltage that goes from 0 to 5V but really the 0 to 255 value controls the duty cycle of a PWM pulse (pins with a "~"), so even in PWM mode, those pins are Digital pin and always output either 0 or 5V, nothing in between (confusing due to the analogWrite()). If we analogWrite 127, the pulse will be 50% at 5V and 50% at 0V during one pulse cycle; that goes so fast that we don"t see a LED blinking (even though it does) we see it as if it's On but dimmer.

[mohammadazzam]

dude u have to teach in a collage best video i watched about arduino great job

[jatinlulla]

The best series ever I can't believe you got only 181k views you should get a leat milleon

[prestonnathaniel-hogg]

Hey Paul, First off I love these tutorials, honestly some of the best content around. and your website is so helpful.

However i would like to point out a small problem in your math.

In computer sciences we start counting from Zero in math from One.
Zero is a position there for in analog there are 1024 positions available between (0-1023)

so when we transfer Computer counting in to math we need to account for the position 0.

In a Nutshell (5/1024) gives you position for Voltage.

We are only human.

Correct me if i am wrong....

[ayansaha]

Best arduino lesson i ever learnt ... Thankyou Sir for making it so simple and interesting. Wishing lots of subscriptions to your channel...!!!!

[nkwiangodwilltokoh]

Really you are wonderful. I am actually a beginer and your lectures really do help me

[michaelcostello]

Nice explanation of the straight line graph equation and its application. Its great you repeat this important information for learning purposes.