I know that Arduino schematic is open source under creative commons but the name is trademarked and copyright
i purchased a Arduino UNO thinking it was a legitimate Arduino product and what i got is a clone that you cant tell is a clone unless you really compare with a real one
its so similar to a real one right down to colour and screenprinting back and front
the main feature so far that stands out a million miles and tells me its a clone is the Polyfuse
the Legit R3 UNO has a fuse what is black with gold text 501K
and the clone has a green one with 5X5 on it
I thought I'd share this purely for people buying Arduinos expecting a legit one and getting a clone. If you know its a clone and brought it then hey that's users choice
There was a long thread somewheres on this forum recently about this issue. There
were some Mega boards being sold from CN at about 20% the "usual" price, and with
the exact same silkscreening, including saying "Made in Italy", as on boards sold at the
usual price. I guess they take 'open-hardware' to mean identical silk-screening.
I agree that in itself is not definitive evidence, sourcing parts do change from time to time. I go more by price, if it's significantly cheaper then most of the 'official' arduino distributors sell it for it's most likely a clone. Follow the money.
I'd knock 25% off the Maplin price, they overcharge for everything, So long as it works and is of decent build quality i'll but it clone or not, but i dont agree with copies being passed off as originals, it does amuse me how people will buy a cheap hardware and moan about the quality expecting it to be as good as something 3x the price.
P18F4550:
I'd knock 25% off the Maplin price, they overcharge for everything, So long as it works and is of decent build quality i'll but it clone or not, but i dont agree with copies being passed off as originals, it does amuse me how people will buy a cheap hardware and moan about the quality expecting it to be as good as something 3x the price.
hey it works and that's good for me
don't get me wrong I wasn't complaining but yes I agree maplin price is expensive so when I saw this I was like wow that's a good price and brought it
and this thread was informative than a complain
after all I make clones myself but defo don't pass them off as legit so for me it don't matter as long as they work
I just thought having atleast 1 legit one would be good for backup and using for intricate things
but then making a clone and buying a clone is pretty much the same price
OTOH, if everybody buys the CN clones for 75% off, I guess the 150 all go out of business.
I have noticed that, for much of the stuff people buy from the ebay CN sites, there is
rarely any support or documentation. This model seems to work for open source stuff like
Arduino, but sure is a big PITN for most everything else.
OTOH, if everybody buys the CN clones for 75% off, I guess the 150 all go out of business.
I have noticed that, for much of the stuff people buy from the ebay CN sites, there is
rarely any support or documentation. This model seems to work for open source stuff like
Arduino, but sure is a big PITN for most everything else.
I learned my lesson early on as I was/am a sucker for inexpensive Asian E-bay modules, sensors, switching power modules and such. If it's not clear to me from the content of the ad on how to wire it up, software requirements, etc I just won't buy it. I never assume I can get technical help from the seller. You just have to be patient and find the products that have the necessary information attached or linked to make them usable. Other then that I've never had an issue with the quality of the hardware offered and the prices are very hobbyist friendly resulting to way too many impulse buying on my part.
oric_dan:
Speaking of suckers, I bought a cheap ethernet shield [mainly as an experiment to
see what I'd get], and it doesn't have a MAC number marked on it.
run the test sketch and see if that will bring it up
oric_dan:
Speaking of suckers, I bought a cheap ethernet shield [mainly as an experiment to
see what I'd get], and it doesn't have a MAC number marked on it.
run the test sketch and see if that will bring it up
I don't know anything about ethernet. Can you point me at the sketch you are referring
to. Every sketch I've looked at requires you to already know the MAC value. Thanks.
oric_dan:
Speaking of suckers, I bought a cheap ethernet shield [mainly as an experiment to
see what I'd get], and it doesn't have a MAC number marked on it.
Even an authentic ethernet shield poses some questions in the MAC address world. The first three octants indicate the vendor and an authentic has a sticker that is a MAC address (0xDE:0xAD:0xBE:0xEF:0xFE:0xED) registered to Gheo Sa in Switzerland. I would bet that EVERYONE with an authentic Arduino Shield has that same MAC address sticker on the back. It is an Italian computer consultancy outfit that I fail to find the connection with Arduino.
Essentially, the assigned MAC means nothing concerning the hardware. The MAC is not written to any of the chips and as long as they are unique in a network, they will work just fine. The MAC would need to be registered if you attempt to operate on the internet like an internet modem etc. Since, you would be writing the code, you would assign the MAC based on the first three octants that were registered to you and then serialize the next three octants.
Essentially, the assigned MAC means nothing concerning the hardware. The MAC is not written to an of the chips and as long as they are unique in a network, they will work just fine.
Thanks, I had assumed MAC was written into the chips [eeproms].
Essentially, the assigned MAC means nothing concerning the hardware. The MAC is not written to an of the chips and as long as they are unique in a network, they will work just fine.
Thanks, I had assumed MAC was written into the chips [eeproms].
after reaserching this that's right you need to burn the mac to the chip
best way to do this cheaply is get an old NIC PCI card and get the mac from that and burn that address to it
then throw away the old PCI card that way you will have a unique address aswell
Essentially, the assigned MAC means nothing concerning the hardware. The MAC is not written to an of the chips and as long as they are unique in a network, they will work just fine.
Thanks, I had assumed MAC was written into the chips [eeproms].
after reaserching this that's right you need to burn the mac to the chip
What chip? The W5100 chip (used on the official Arduino Ethernet) has no way to store a MAC. You have to supply one in your sketch.
Even an authentic ethernet shield poses some questions in the MAC address world. The first three octants indicate the vendor and an authentic has a sticker that is a MAC address (0xDE:0xAD:0xBE:0xEF:0xFE:0xED) registered to Gheo Sa in Switzerland.
This is in line with my previous comment about lack of support and documentation.
It seems the clone maker of my ethernet shield hasn't registered its products, simply
soldered chips to a cloned board and put it in the mail.
