Introduction to Arduino 

It took me about 3 days to digest what you said in the video. These are the notes: Arduino uses 5+ (Five Volts, or Five VCC) There is a ‘Regulator’ that converts the power input (PWR) into 5 volts. This Regulator can handle up to 20 volts, but 6+ is the minimum to get it working. The Arduino can store the ‘Strings’ (A line of code such as a length of letters, numerals, symbols and punctuation marks) of a program within its memory. You can use a 4 MHz external oscillator (Ceramic crystal Timer). The two LED (Lights) named RX and TX will blink when Serial data is being transmitted through pins 0 and 1. There is another LED called the ‘L13’ which will blink when data is written to pin 13 (Serial Clock). This pin is part of the SPI for connecting other devices to the Arduino. The ‘Reset Button’ will do a ‘Hard Reset’ that will cause the program to restart from the beginning of program Flash (Boot-loader). The headers of the GPIO is not the normal 1.1 dot pitch like on a breadboard. The first headers 0 (RX) and 1 (TX) are used by the USB to Serial interface. These need to be disconnected when programming the Arduino through the USB port. Header 2 (INT-0) and 3 (INT-1) are ‘Interrupt pins’ which can be configured to trigger a piece of code when a signal is received through them. The ‘Interrupt handling routines’. Headers 3 (INT-1) to 9 are PWM (Pulse Width Modulation). Pins 10 to 13 (SPI) are also PWM though. PWM can be configured to output an oscillated frequency as high as the internal clock will allow. A set frequency that turns the pin off and on combined with a set duty cycle that tells how long its off-time will be (Say 70% of one second), the voltage can be reduced without the need for additional resistors (These convert voltage into heat). Pins 10 (SS), 11 (MOSI), 12 (MISO), and 13 (SCK) make up the SPI. The next two pins on this side of the PCB are not numbered but are named GND and AREF (Analog Reference). After that, are the I2C pins 18 (SDA) and 19 (SCC). The I2C is also on the other side of the PCB as headers A4 (SDA) and A5 (SCC), also called 18 and 19. The pins 14 to 17 are also on this side of the PCB and are labelled A0 to A3. Headers A0 to A5 are ‘Analog’, so they can be configured to be either Digital or Analog inputs. The 20 headers have a current tolerance of 40 mA The Pin AREF (Analog Reference) can be configured to be between 0 to 5+. If for example, 4+ is supplied into this pin, than the headers A0 to A5 would read a voltage between 0 and 4+ as a value between 0 to 1024. This is because the analog input on the Arduino uses a ‘Analog-to-Digital-Converter’ with 10-bits of resolution (1024). If the AREF is not used, then this 10-bit value will be defined by the ‘logic level of the board’ which is 5+ volts. However, down to 2+ and the board will only read a value up to 512. The I2C ‘Inter-Integrated Circuit’ or (I2C) is another protocol with a Serial bus that’s used by many different devices. Serial Data (SDA) and Serial Clock (SCC) allows 127 devices to be connected to the same bus at once. The I2C pins are available on both sides of the board as pins A4 or 18 (SDA) and A5 or 19 (SCC). The AREF is supplied with a voltage that determines the upper-limit or what the highest voltage that the 1024 value represents. But the chipset must be informed through software that this is happening, otherwise there will be a conflict where the Internal Active Reference will be shorted (Lose power) to the External Reference of the AREF. The SPI (Serial Peripheral Interface) is another way to connect devices to the Arduino. The power pins are on the same side as the A0 to A5 pins. They are as follows: IO REF, RESET, 3.3V, 5V, GND, GND, and Vin. IO REF allows a ‘Shield’ to know what logic level or Voltage the Arduino is operating at. When RESET is given or pulled low ‘active low’ (Lower voltage signal), it resets the ‘Sketch’. 3.3 V provides this much voltage to external peripherals The 5 V pin can be used to power the Arduino itself as an input or power an external device. The ICSP allows you to program all 32 Kb of the Flash without needing a boot-loader, which programs the device. ‘Self-Programming Mode’ (SPM) allows the boot-loader to load a particular application from where the program is stored, usually from the USB port. Once the RESET button or pin is activated, then the Arduino restarts the boot-loader. If it detects a specific piece of code from the serial lines of the USB, then it will reprogram the Flash with the code from this input. If not, then the Sketch is run instead.

dear sir, the video is great, from Iraq, I would like to say thank you so much for your efforts, and i wish if it is possible that you make a series of episodes on how to understand Arduino through projects

This is the single most helpful video on the subject that I have watched so far.

Thanks for taking the time to put this together. I found it extremely helpful.

I've been looking for a nice video introduction to the arduino and this one is REALLY good. I can't wait to start experimenting with it!

You just filled in several gaps I had about the Arduino.... Thanks mate!

I really like how explain everything very simply, assuming I know nothing about the chip. This was very informative, and gave me a really good handle on the basics of the Arduino. thanks for the video! Also, great beard!

FANTASTIK JOB DUDE!!!!!!!!! its about time someone gave a thorough tutorial in a language I can understand. Very cool and enjoyable to listen to. You need to make more videos and put them in a course.

Fantastic video. Happy I found this!

Great video! You were very thorough and I learned a few new things about electronics in the process.

Well explained, very informative. Thank you.

Wow that was extremely helpful, thanks for it! I would like to see more ardunio videos from this guy he is really cool!

interesting video, ive had an interest in this controller for some time for control and operation of my Drones but im so impatient that I use the ready to run plug n play type up till now :) but I will be getting to this as soon as I can as im hoping to develop a 24/7hr UAV/Drone just to prove my ideas work (no wonder my company makes no money lol) as im far to interested in RnD. Thanks again for the vid and keep producing vids Regards Chris Armstrong

Thanks for the very informative video. Great in-depth explanation!

Will look up fly-back voltages...thanks, this video was excellent

soon as he said control your hydro or mushies i subscribe and hes also a clear and understanding teacher

GREAT VIEW!! Will practice! THANKS

Man you are AWESOME.. THANK YOU FOR YOUR TIME

Thanks! Very helpful information

Brilliant educator!!!

its really interesting and awesome work very helpful for hardware engg who are dont know programming in my case its very help full thank you so much .

Thanks, found info very useful.

Hello Sir...... This is the ultimate stuff on Arduino . Keep it up ...

great video. thanks. how do you copy the boot loader onto the chip if you just have the bare chip and not an arduino?

New to this stuff and this was a nice little shallow dive into the Arduino. I'm watching the bootloader section and wondering if there couldn't be another chip between the USB/Serial interface and the 328P that would take the place of the bootloader?

thank you ,i find extermly helpful

I have wanted to learn about the Arduino for a long time. If there is one thing that I have learned it's that I have fallen far behind since my days working in the HVAC controls industry. I shall follow your course with enthusiasm. Are you making another video?

With the serial pins, can the rgb leds with addressable chips be programmed to come on according to what a computer signal is? I can see this possible but maybe not without some form of external board that can handle the load of 200+ 50/50 rgb leds at full load.

So is it possible to measure cell voltage of 10 in series via one of the I^2C port (A4 or A5)? or do I need a controller with 10 analogue ports?

can I use the phone charger 5v adapter (at 220v) to supply the arduino board in an eternally working project ?

5:03 OCDs are triggered. Nice and simple video by the way thanks.

Learnt a lot from this, thanks!

Nice video, I wonder if you could help, I am trying to get my laser pointer to turn on when my stepper motor is on, what steps I need to add to the program, please.(I am using Arduino uno)

Great Information Well Done

great video .. I have been programming blindly LOL

really nice thank you :)

Great video, thanks.

Really excellent tutorial.

excellent video, thanks

I like what you said about building the 328 chip onto a breadboard, I'm fairly new to arduino but liking it. Maybe you covered this but I didn't see..Is there any reason I couldn't use an arduino board to program the chip and then pull the chip off the board and drop it in the breadboard for direct hookup and drop a fresh 328 chip into the arduino board.

Great video and cool shirt.

Great stuff, thanks

What would be cool is if this can be used to control rgb leds according to signal for say a shift light. That would be awesome actually. multi color fade to red then blinking red for shift... sounds like it's possible but I've not death with computers, your video mashes me me inclined to test the waters in a new hobby

GREAT KEEP IT UP. YOU HAVE A LITTLE DIFFERENT PROSPECTIVE THAN AMERICAN TECHS. LIKE YOUR INFO. THANKS!,

17:18 sink or source? Also boot-loader size is not the half of the program memory afaik only 2KB.

Brilliant tutorial Ashley. I want to produce a product, would I need to programe the atmega chip without a bootloader? I am assuming programming without the bootloader is more complicated. I think my programe would not use much memory.

Would you be able to allow me to explain a project I an working on, and see if you could tell me the proper components to properly hook up my adruino? I learned so much from your video.

Nice - no fluff.

thank you so much brother

Thank you!!!

Great video and the shirt 👌

Lool, funny teacher. 17 minutes in.

Hi Robert will you be doing any Assembly tutorials in Arduino or do you suggest C or the Wiring language?

Thanks this is a great introduction who is the presenter?

Good work. Thanks.

Awesome information! The mic'ing was a little annoying.. every time he clicks the mouse I started wincing! Other than that - great deep dive!

Watching this 2nd time

This video should be titled "Growing Dope: 2015 Edition".

Robert Murray - Smith. Please Sir, what is the name of this guy? I also watched a video made by this guy about about a horrific story about death cap mushrooms. I cant find the video anymore. I want to watch it again.

you have a great shirt borther

I want to purchase Arduino uno board, please tell me what other things (like jumper wires,etc) should i purchase along with it to make good projects. Arduino board costs rupees 460, and my budget is rupees 1000. So, pls name the useful things 2 buy with it and its cost..........i wanna buy it today....pls comment.

thx

what is the name or channel of the guy who made this video?

Who is this? This ain't RMS! Good video though. RMS, I download all of your videos for offline browsing.

“so easy a caveman can do it......”

Can it cut hair?

Who is the instructor?

so easy, a caveman can do it! 😆

Very good video. Hint of an echo though.

the audio echos ,makes unclear

Who is this guy ? i want to visit his channel

but can it run crisis?

Thumbs up for the great video. Best content I have seen. Audio was ghastly. It was so bad that it was truly unprofessional and, personally, I would never post something this bad.

Couldn't have choose a more disturbing T-shirt. lol. Interesting video though !

I wonder what the hidden inside joke is all about. 1:32

get me a texan an a double nougat........an a boatle a irn bru.

speek like to eat

great video, but dude, the sound ... REEEeeeeee.

Ashley. Not for the total novice. The sketch setup and instructions assumed a level of knowledge, so lost me in the brackets and numbers. What on earth was going on? Cheers, Andy

you could condense this entire video down to about 10 minutes