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This one is the only genuine one amongst this lot and when I say turn a nano into an you know, I don’t mean any sort of physical transformation from this form factor to the larger one. In fact, you can do that quite easily with one of these adapter boards, you simply plug the nano into it and it becomes uno form factor know what I mean is make a nano appear to the Arduino IDE as though it’s an Ono. So why would you want to do this? Well, one reason is memory. The uno actually has more memory than the Nano I’ve opened. A blank sketch here, it’s just empty set up empty loop, it’s got today’s date and I’ve set in tools that I’m compiling this. For an Arduino Uno there, now, if I hit compile you, can see in the text at the bottom, that we’ve only used a tiny amount of the space of this chip, of course, but the maximum is 3 2 to 5 6. Now, if I change this to a nano, so under tools board, Arduino Nano and then recompile it, it says, build options, change, rebuilding all and it does take a little while we can now see that again, we’ve used very little of the space, but now, instead of 3, 2 5 6 we’ve actually only got thirty thousand seven hundred and twenty bytes hmm let’s, not look at those numbers now cost in terms of the chip, both the Nano and the uno use the 80 mega 328p and, of course, the chips the same in both It has 32 km Emery, which is three two seven six eight you know is the same three two, seven, six eight and the maximum reported are for the Nano was thirty thousand.

Let me just check that 720, but for the goo. No, it was three two. Two: five: six: why well it’s all down to the size of the bootloader in the Nano the bootloader is we’ll, do a subtraction here: it’s 2, O 4, 8 2 K, in other words and in the uno. The bootloader is just 512 bytes and that’s, because the uno uses this OP to boot. A small and fast boot loader for Arduino – and it says down here it – allows larger sketches up to boot – is a quarter of the size of the default bootloader 512 bytes against 204, eight freeing 1.5 k of extra space, but look at this. It also makes your sketches upload faster up to boot, operates at a higher board rate and has streamlined programming and are down here. It says: opto boot is now installed by default on the Arduino Uno, but not the Nano and not the pro mini. So we could put this up to boot. Boot loader in the Nano we’d have the larger sketches and the app faster uploading let’s see if we can do it. So what I need to do is I need to program the uno bootloader, the opt abouut bootloader into my nano chip, my 80 mega 328p. Now what I’m going to use for this is a USB tiny ISP, which is a in system programmer. I need to connect this to the ISP. Header got to be careful.

I get pin 1 learning up with pin 1, so it’s actually going to go that way round, which is slightly awkward right, let’s plug that into my PC. So the first thing I’m going to do is just check in my device manager that the USB tiny ISP is there, and we have an entry here at male USB devices that just click that and yeah there’s, the USB tiny, so that’s being seen by the PC. That’S fine now in the IDE I’m, actually going to select board uno this time, even though I’ve got a nano plugged into the programmer I’m, also going to check that the program is set to USB tiny ISP and it is and now I’m going to burn the Bootloader right I’ve positioned the nano up here on box just having to see what the lights do so now, I’m going to do a burn, bootloader and, of course, it’s going to burn the uno. Bootloader let’s see if it works, burn, bootloader. Well, the lights are flashing and in fact it says here done: burning bootloader let’s see what the upshot is so I’ve now opened. The blink sketch let’s put that there let’s make sure that we’re set to uno because well my nano is now a new, no comm. 5 on here and let’s try no.not compiler 1 upload, ok, rebuilding compiling sketch uploading and there it is the blink sketch is blinking so that’s flashing. It says that we have a maximum of 3 2, 5 6 that’s the larger space.

So this would now appear to be and Muno let’s just tell it it’s a nano again and see what happens if we try and upload this, as though this is a nano compiling the memory is the smaller amount. It says uploading dot dot, but I don’t think it is. It seems to have got a bit stuck I’ll. Just come back in a moment and that’s now come back with an error. It says problem uploading to board the ship hasn’t programmed. So this is certainly not working as a nano anymore. This is now a new. No now this problem is almost certainly due to board rates, so let’s have a look at that next, so what I want to do is get a more verbose output from down here. So I’m, going to go to file preferences and I’m going to turn on, show verbose output during compilation and upload. Why not so that we can see better what’s going on now, let’s try the upload again! This is the compilation text here I could make that a bit bigger, actually that’s stretching that out, and it says overriding board rates. 57600 let’s get this more dark, so the camera can see it better and we’re. Getting these sync problems. Programmers not responding. Sdk 500 get sync attempt 1 of 10, not in sync attempt 2 of 10, not in sync, so there’s a definite problem here and it’s almost certainly this 57600 board rate let’s put it back to you know so, set it back to an you know again.

Now, comm 5, so let’s try the upload as an you know: there’s the compilation messages just waiting for the upload and now it says when it’s gone off the screen, but it was 115 200. Let me see if I can scroll back to that. Yes that’s here. So it seems that the you know transfers data at a board rate of 115 200 and the Nano when you set this IDE to the and it attempts to do it at 57600. So there it is. My nano is now an Arduino Uno and you actually have to set you know in the IDE. Otherwise this thing won’t program, but it does mean now that this has one and a half K more memory and it uploads sketches twice as fast now there’s. Just one more thing I need to do, and that is I need to make a little tiny sticker so that I don’t forget that this Nano is now – and you know well, okay, the sticker doesn’t quite fit, but I need some way of identifying that this nano Is no longer a nano it’s actually in uno and when plugged into one of these expansion boards, my uno nano not only behaves like a new.

 
 

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official.arduino
2019-10-25T18:08:03+0000

Last weekend we announced that we’re working on a new development environment with advanced features. Let’s take a deeper look at what is in store for the Arduino Pro IDE!
official.arduino
2019-10-25T15:12:36+0000

“Let us change the world by making technology accessible to everyone and put it into the hands of every student and educator.”

KyeFox
Sun Jun 10 18:55:46 +0000 2012

RT @CMYKGenet: What’s the good way to make costumes/apparel with rgb lighting? Is it just like, a teensy/arduino nano and a li-on battery i…


CMYKGenet
Sun Feb 12 04:19:54 +0000 2012

What’s the good way to make costumes/apparel with rgb lighting? Is it just like, a teensy/arduino nano and a li-on battery inside a waterproof case? What are good types of LEDs/strips to use?

DIY: TIL311 Hex LED Displays (ie, “a clock”)

You can build and program your own robot with this simple kit

 

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