Why you should buy an Arduino Leonardo 

There is one major advantage to the Uno over the Leonardo: Replaceable chip. A DIP chip in a friction fit socket is way easier to replace as an end user than an SMT. Makes certain smoke-releasing mistakes cheaper to fix, and makes possible certain projects that require removing or swapping the chip.

pwm - Pulse width modulation :) good video!

For some reason the Leonardo price has dropped to near clone prices, LOVE IT they seem to program easier and are quicker. Thanks for the intro even if I found it a few years after you put it up

Cool and informative video. BTW you probably know but its pulse width modulation. I got a UNO rev.3 and a DUE but I might get a Leonardo too.

The direct USB connectivity sounds cool if you want to communicate with (for example) third party software as the OP describes. I personally prefer the FTDI chip because I've already written a serial interface class for my software projects. I use the Nano exclusively because they're dirt cheap and mount directly on my circuit boards in the space of a DIP chip. I make sockets out of female headers to mount the Nanos on circuit boards so I can easily remove them for other uses.

I like that Idea, could put a bit of shrink warp over them so its not to conspicuous. I'll need to remember this in the future.

I like the through-hole version more as I bought 4 additional MCUs + a few ATTinys and can program them all by taking out the original MCU that came with Arduino and connecting the board to the MCUs on a breadboard (after burning the bootloader ofc).

i have almost zero experience with microprocessors but I've read up a little on them and checked out some tutorials. they had a intro to arduinos on systm (not misspelled) over at revision 3 awhile back and they made it a point to show how to set up a board to run a chip separate from the programming board. As far as the new board goes, the price drop is nice if you plan on leaving it intact.

Nice overview. Thanks.

I actually like a little background music to make the video seem more "edited"... But the volume could easily be a lot lower to make it less of a distraction :) thanks for the vid

Thanks. We use 'special' wires that for example have a 470 Ohm or even a 220 Ohm resistor soldered inline. The shrinkwrap over the resistor is either red (for the 220) or purple (for the 470). These are the only wires we will suggest for connecting to the I/O pins for most projects, like lighting an LED, etc... This is from painful experience. BTW, it seems, at least that only one I/O pin burns out at a time.

I agree wholeheartedly. When teaching Arduino programming to young students (10-12 yr old) instructing them on ways to keep from overloading the pins is difficult. Having a socket mounted IC is a big plus. When I teach, I have special 'wires' made up that have resistors soldered in them inline to use whenever we are connecting a device like an LED, etc... to an Arduino from a breadboard to keep from overloading the pins.

FYI the hardware pwm isn't used by the servo library. It uses one of the timers to generate the pulse. So servos are not restricted to the pwm pins. The pwm pins are useful for DC motor control and pulsing the ena line of a an hour bridge.

I use the REV 3 to program chips to use in my own boards

on the arduino you can use the analog inputs as digital ie instead of A0 it would be d15.. nice vid...

I believe it is "pulse width" modulation. You change the width (length, measured in time), of the pulse (on cycle/off cycle).

Cool. Would be interested in seeing what you do with it.

I still use a serial port to control my IC706 and program my BS2s.

Nice video I am going to buy this version based on two facts the first was the micro usb port and this version being smaller the second was it being cheaper as a beginner thats a must.

Great video thanks

I have a Micro which is basically a smaller version of the Leonardo. Startup on the Uno is almost instantaneous whereas the Micro takes a second or two. Not sure if the Leoonardo is the same but I could see that delay potentially causing issues in some applications.

it's Pulse WIDTH Modulation because you modulate the width of the high state.

Good to know that I bought the right one then! :)

ty thats was helpful

Me too. I checked to see if I had any notifications.

DONT WORRY MAN! TRUST ME! THE LEONARDO IS SO CONFUSING! You really need to spend so much time and research into figuring out how to fix it. I was about to buy a Leonardo, but I found out on some forums that it had problems.

Haha, I wish I owned a pair (I'm an android developer). One of my co-workers was invited to buy a pair, and was awesome enough to let everyone in the office try them out! I personally don't know if they will ever be anything but a toy for the average user, but can't wait to see where they go :-)

yes, preloaded chips are on sale (almost the same price as the original atmega328 in our shops, 6.1 eur preloaded vs 4.9 eur vanilla chip). and it's not the financial cost that bothers me, it's about not creating useless waste and reuse.(and yes, i have "baked" a avr-s into a useless bricks over here, doesn't take that much effort :D). on the whole though - arduino folks are great people who have created great products. they have definitely pushed the diy borders beyond the imaginable.

pulse width modulation not pulse width management

the advantage is in the fact that you can remove the socketed chip once it's programmed and placed in a socket to reduce the cost of multiple applications.

A windows blip that he heard, he tought was on his machine. But actually is on your video.

how do you not have micro usb around? are you an apple user or do yo not have a smart phone? the last 4 smart phones ive had and last 2 "normal" ones have all been micro usb

cool, do you know the laser output wattage in the intro, if not don't bother, so the Leonardo is the next new thing from Arduino nice and thanks mike

Can this board be used to display rpms via a photo interruptor and also count the number of rotations that have occurred? and display is on a little lcd display?

FYI- "Duemilanove" means "2009" in Italian. Year it was released?

3:42 drove me crazy ^^

What's your experience with the micro-usb at this point in time? Considering how tiny the connector is, I can't help but feel like you would break this thing under heavy use

In my opinion, Auduino or mintduino is good place to start to learning how it work.

pwm=pulse width modulation

how at all is using an SMD package an improvement? DIP is great, being able to pop the chip out of the socket ans slapping on a crystal and 2 caps is all that is needed to setup a standalone. if you have QFP its a bitch to solder out without special tools and its much harder to implement into your circuit. the only upside is that the QFP is cheaper and is compatible with pick and place machines.. making for a cheaper device.

I wanna get into the arduino world but cant decide which one is the best and cheapest for my projects I wanna control 120v motors and electronic valves (using relays) and some distance sensors to sync all the motors and valves (on/off state) is arduino uno any good choice? I think I need like 3 motors 3 sensors and 2-3 valves. I would use PLCs but they are pretty goddamn expensive here where i live.

I agree with bleem, I much prefer the socketed chip on the original. I also hate the microUSB. I wish someone would make Leonardo: DaVinci edition with a socketed IC and a normal USB B connector while keeping all the other improvements since the UNO.

i wasn't aware they had one. Systm is a canceled web series that would cover diy tech projects.

Sweet!

The music background is pretty annoying.

Among Uno and Leonardo,which is better ?

that is pretty rockstar

Loose the music, unless you think your presentation is dull.

someone help me?? my leonardo r3 are are to uploaded the code.. history.. they have install code for controller but I have found a new and better code for compatible in other cp game but while I upload then I wipe the old code the COM serial port only show is COM 4 not COM 7 (name with arduino Leonardo r3)

I wanted to know what changes from leonardo to two thousand??? what do you recommend to start??

If you plan on building projects that work directly off your Arduino device and has the data interpreted by the Computer it is connected to then the LEO is the board you want. The ability to be seen as a interface device without the use of .lua or .py or even a flash builder program is a huge time saver. If you intend on removing the AT chip and manufacturing a PCB for use with it as a stand alone device then there is very few if any advantages! However, you can do a RU-vid search for "Shrinkify my arduino project" and this will show you the concept needed for programming an AT chip that is not mounted on your Arduino. Knowing how to do this makes the UNO obsolete and the LEO your go to board! This is really simple and only requires a "10 uF capacitor" that costs pennies!

How easy you can break that? Like set led incorrectly etc

hi the only down side to Arduino Leonard what happen if you fried the chip you will have to replace the whole Bord with the older version you don't have to just the chip

Whats wirh the arduino Leonardo pro Micro? Can it also bei used die an Keyboard...

What would be the best Arduino board to control one stepper motor and one solenoid? I want to control the timing and speed of the stepper - to rotate 360 degrees then pause - and then actuate the solenoid during the pause. Thanks in advance. Great videos!

I thought the usb is micro usb on the leonardo?

What should one buy according to You?

Hay thanks a lot this helps explain difference between the two. I still think I'll still get both, one for me and the other for my teen kid. :-P. Just subscribed for later info. Hay like the plasma cutter, can i make one too:-D

So I was thinking....is there any difference in the programming languages for various arduino models or no difference at all...?

pulse width modulation

Actually yes. Isn't that the point, to program them & then build "standalone" boards? ;)

But "Serial Port" is still something totally different, and the "serial" is only referencing who the data is incoming. The "S" in SATA also stands for serial, but you wouldn't compare it to usb, would you?

Which shields for the UNO are not compatible with the Leo?

Did you modify the power supply to show "666" at power on? :D

I always thought cellphones were less prone to ripped off jacks because they're supported by the phone shell. The fact that they don't even seem to work with phones makes me question why that type is still out there in the first place. After all, I've had the same barrel-plug charger for years now

2:23 Learn that PWM stands for Pulse Width MODULATION, not "Management".

I am new in this technology what i can do by this circuit is this similar to PIC programmer ?

PWM is Pulse Width Modulation sir, Not Pulse Width Management. Just wanted to let you know.

hi, where can i buy a laser gun for cnc like in your intro part of video?

how do i power the leonardo? how many volts and mah

I John, i'm a young computer programmer that wants to build some cool gadgets with arduino during my break. I never worked with an arduino before and i can't find the arduino starter kit in my country but i have the possibility to purchase the component separately, so along side the Leonardo what other components should i buy to get started. I don't have any experience with electrical engineering, i simply want to bring my code to life. Please respond. Thanks

Don't you need to reset the chip to allow it to be programmed?

Hi need some help i want to make something. I got it inmr head i hope that you can help me think you

No it's not!! You had it correct before. It's Pulse WIDTH Modulation. Duration is the amount of time from the rising edge to the falling edge of a signal measured at the 50% mark of each. That's the width of your signal and you increase or decrease the duration that your signal is HIGH, 1, or ON to modulate the signal, hence the name.

hi. just wondering. what is the difference between 'with headers' and 'without'?

I have a keyestudio version

Why not get a ruggiduino? Its the same as an Arduino but is impossible to accidentally destroy with bad wiring.

would i be able to use this to output a touchscreen input (using coded macro buttons) to pc like press a button on a touchscreen and it go to the as a macro?

Don't know why micro USB cables should be a PITA, they are almost "dime a dozen" these days, almost all decent recent smart phones are using them. The size and reliability of the connector on the board however, that's indeed a bit of a concern if you're connecting/disconnecting your Leonardo a lot...

hi please can you help to find any way to build my own TV dvd player using arduino and an extern dvd player please any one can help me

Arduino Uno is better. What if your surface mount chip breaks? And wanting to shrinkifying projects?

I thought it was Pulse Width Modulation?

in my opinion the normal arduino is better. if you plan on using an arduino in more than one project then you can just buy a microcontroller simmilar to the arduino has and copy the arduino chip into the new chip then with a crystal and some resistors you can make an arduino copy that you can program using the original arduino board leaving you with 2 arduinos!!!.

I've been in the business of developing advanced microprocessor and microcontroller systems since the 1980s and while appreciating much of the modules and devices available nowadays to the private individual for hobbies or development , I have to counter the claim that the 'Arduino Leonardo is awesome'. Recently I was asked by a friend to design a 3-phase inverter drive for an ac induction motor , using the Arduino to implement an interface for a PC GUI. At first I said yes the Arduino should be alright for this application. Then I went and looked at the pinouts on the board , thinking I should find at least one complete 8-bit I/O port to drive amongst other things a dual DAC for the inverter system. To my amazement , they have totally messed up the so-called 'Digital' socket on the board. First, the labeling D0 to D7 does not represent the pinouts from Port D from which it is derived. Secondly PD5 is not even available on the socket but instead is used to drive a silly LED. A most basic requirement of any decent general purpose control board is availability of at least one complete 8-bit port with a minimum of 2 digital qualifier lines for handshaking purposes. This could easily have been done with the board without compromising the special features such as PWM and serial I/O which is implemented. Now I concede that the board has been designed for some special narrow scope applications and for that might be perfectly adequate, but to describe it as awesome, I think you are giving the manufacturer way too much credit. How about ask them to redesign the layout on the next version . In my opinion, considering the volume of sales on these products, I think they should be offering a more sensible configuration than this.

which is better in price range and working

The ding/bell sound. It's more towards 3:42

why is the duemilanove so popular, everybody has one

Actually it is "Pulse width modulation". You shouldn't be correcting anyone

Soooo, should we buy it? lol. I missed that part -__-.

0:04 Subliminal Messages 66.6 66.6 O.o

Please guys tell me . I also have a audrino uno. I want to that is it real of fake because in most of the videos of audrino uno which I have seen have thier reset button on their top right corner but in mine its somewhere in the middle of the board . Help me !!!!!!!!!!!

OH NOES SURFACE MOUNT!!!! If you blow a chip you have to get a whole new board.

Being surface mount is not a bonus. You can't supply it as a kit for a beginner to build then learn to program. I can't pull the chip and use it in my projects. And here is the big one. I killed my first ATMega328 in 2 days. I just pulled out the chip and popped in a new one. EASY! and relatively cheap. SMT is a technology for high speed mass production in a throw-away society. Education & engineering is neither high speed nor throw-away.

Buy arduino Uno, it's the best option, i have one and had no problem. The only thing Leonardo has more is the possibility of simulate a keyboard or a mouse, which is nothing special ate all.

UNO or Leonardo?

Your comparison is misleading. You should have compared the Arduino Leonardo with the Arduino UNO R3!

Pulse Width Modulation.

The music too loud. Otherwise nice video. Thank you.

is that kermit the frog speaking

DAMN I just bought an Uno..