Hello Everyone,
I am new to the Arduino world, and to get started I got two of the above boards.
It is working, I managed to install the IDE, the drivers, and the blinking example is running.
I understand that this board is equivalent to the Arduino UNO R3 board, except with a different USB chip.
Still, I would like to see a schematics for the board.
Does anyone have a schematics for the above board?
Thanks, Peter
They're unofficial boards... I've never seen any documentation for any of the clones. There are multiple designs, too.
Interesting, this is an official Arduino sponsored web site.
You are asking for support for a board that competes with official hardware.
:o
Please do not refer to a board containing a CH340 as a "UNO" or "UNO R3". It has negligible semblance to a UNO R3 as it is missing the auxiliary processor, notwithstanding the mendacious advertising.
It is in fact, a clone of a Duemilanove. It may well have the "UNO" bootloader, but that can be re-flashed to any Duemilanove in any case. The only significant variation to a Duemilanove is the re-work of the op-amp to drive the pin 13 LED.
Paul__B:
...mendacious advertising....
Paul, I love it! Vocabulary building!
Hello Everyone,
Thanks for the replies!
As mentioned, I am new here, so I did not realize that one word could cause such a furor!
It must have touched some raw nerves!
I should have written that the board I have is "compatible" and not "equivalent"!
The place, you guessed it where I got it from, calls it compatible. Gives the name as I gave it in the title of this post, and no trademarked Arduino logos anywhere in sight.
But I am not here to defend (or offend) anyone.
Language issues aside, I still would like to have copy of the schematics.
Paul, do you have that section of the schematics with the differing drive to the pin 13 LED?
Thanks, Peter
Ah, I'm not complaining about your innocent description of the boards, it is about those who misleadingly advertise them as something they are not.
But there is the point. Since they are not a genuine Arduino design, then ipso facto, they will not be documented anywhere on the Arduino websites here.
You then have to guess who was the originator of the "compatible" design and see if they have a schematic for it.
Let's see, it isn't Sparkfun, because their UNO is indeed a UNO, and their "Redboard" uses the FTDI chip, so it is in fact, a Duemilanove, plain and simple. It does not appear to be YWRobot either, so I really cannot imagine where to find the schematic.
Just so you know, here are the genuine schematics for the Duemilanove and the UNO R3 on which you will note the different pin 13 and op-amp arrangement.
I've never seen any documentation for any of the clones
"Derivatives." Any board with an entirely different serial/usb chip is clearly not a clone.
They are still annoyingly in violation of the "share-alike" provisions of the original Arduino designs, IMO.
(Alas, they're not alone. A lot of vendors with a more significant presence than "some eBay seller" don't publish their schematics/etc, either. Sigh.)