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Grogster
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Posted: 16 May 2018 at 11:07am | IP Logged Quote Grogster

I thought I would start a thread about sellers of the genuine article now we know for sure that there are clones out there, as confirmed by Boppa via his contact at hc01.

I bought six modules from eBay here.

These ones arrived today, and are genuine ones. Thick white silkscreen, t300 crystal.
Spot-on frequency when tested on channel-1 (433.600MHz)

In the past, I have purchased from this store on AliExpress and they have been genuine.

The ones I bought in November last year that turned out to be clones and off-spec were purchased from this trader.

As a guide, go by price. They should cost you about US$4 or US$5 each. The ones for US$2.50 or so are very likely clones. I have another five coming from the first AliExpress link as they have been genuine ones when I purchased from them before, so I will update this thread with the results once those ones arrive.

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Phil23
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Posted: 16 May 2018 at 11:37am | IP Logged Quote Phil23

Geez,

It's a bit hard to pic some, but I notice a lot of Ali sellers are using these pictures & no close ups of the modules.




Also stumbled over this one,

That shows a black crystal in one of the pics.

Not sure it they are rigidig or not.




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Grogster
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Posted: 16 May 2018 at 11:48am | IP Logged Quote Grogster

Here you are then - some close up's!







The GENUINE module is on the LEFT in these photos.
The fake one is on the right.

As you can see, there really is not much between them, and to the untrained eye, they are identical. That makes it harder again to spot the fake ones. The genuine ones have a much 'Whiter' silkscreen on the bottom, and you can't really see the track under the silkscreen. The clones have a thinner silkscreen, and you can easily see one track that stands out on the back. The connections also appear to be dull looking on the clones, but bright and shiny on the genuine ones.

Genuine ones have a square pad on the top for VCC, but it is ROUND on the bottom of the PCB. The clones have a square-pad on both top AND bottom for VCC.

Don't put any faith in the photos that the sellers use. They are most likely taken from the genuine article, weather they are clones or not. IE: The clones will be sold with photos of the genuine ones on the listing.

Edited by Grogster on 16 May 2018 at 11:53am


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Boppa
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Posted: 16 May 2018 at 1:48pm | IP Logged Quote Boppa

Interesting that one in Phil23's post, I tried to read the crystal markings but it really isnt clear enough- possibly t304c???, but close inspection of the pcb would seem to be a legit one with the round lower VCC connection...
but then on that site, it has all the photos with the black crystal, except one where its a goldish looking one... so obviously they have a mixture of photos of different units...

It sounds like building a list of sellers with ones selling known real HC01.com ones, and ones selling the clones/fakes (also handy to know those for people already locked into them in existing networks)- now with a possible third variation (real but with black crystal???- that would need to be confirmed though)

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Grogster
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Posted: 16 May 2018 at 3:20pm | IP Logged Quote Grogster

I have no idea on the black-crystal ones. I have never been sent any with that crystal. I fully expect those to be fakes too. You could run that past your contact at hc01 and let us know.....

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Boppa
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Posted: 16 May 2018 at 5:15pm | IP Logged Quote Boppa

I would call it a clone rather than a fake Grogster, it doesnt have the hco1.com badge, so it technically isnt a fake, unlike the ones that do have the hc01.com lettering but arent from them...

Its performance would be the deciding factor in whether it would be an acceptable buy, for that we would have to get one and test it I suppose...
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Grogster
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Posted: 16 May 2018 at 5:49pm | IP Logged Quote Grogster

Clone, fake - I keep interchanging those terms.
You're right - clone.

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MicroBlocks
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Posted: 16 May 2018 at 5:51pm | IP Logged Quote MicroBlocks

Thanks Grog,
Just ordered a six pack.


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