People, I have this biometric sensor and I would like to test it on my Arduino UNO R3. It has 16 pins, and I have no idea how to connect the wires or which library to use.
I've searched a lot on google but I can't find it
Can anyone help ?
Download the datasheet. Start from there.
Why waste time writing this ? want to embarrass people who want and like to help ? I hope you don't make it.
Nobody’s embarrassed.
Nor can they find the datasheet.
- maybe a chinese product ?!
Does this forum have a down-vote?
Asking as a newbie here.
(I'd really love to make this one)
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No, only upvotes and I think you can cancel a particular member and never see their questions or contributions, dunno how.
a7
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Yes, it came from a small Chinese time clock that has no make, model, number or manufacturer. Neither internal nor external. But the model of the sensor is this one from the link, it took me a long time to find it. 16 pins. The cmos chip is GC0307, this one I have the datasheet but for me it's Greek.
Have you tried Google Translate, Greek to Portuguese?
lol, sorry, it's just a way of expressing myself. When something is incomprehensible we say it is Greek.
Well, try posting the datasheet (unless it's in Chinese, in which case, your chances are ... limited)
It's multiple pages of a PDF document. I don't know how to post without using an external link, which many here don't like to access. But, I thought that someone, or many, already had experience with this sensor model. I thought someone was going to answer something like this: Ok, use this library here and call it like this. Because I've done it before. There are many such answers on this amazing forum. But, let's wait a little longer, maybe someone will show up. Thank you so much for trying to help.
From what I gather so far, the sensor is a VGA resolution
imager. Great for grabbing VGA resolution image, terrible for classifying fingerprints without additional smarts.
A quick google search for GC0307 and links to 2 PDF datasheets came up on the first page.
The second datasheet is for a camera with a USB interface, but the first looks like it holds more details.
I am very grateful for the contributions. But I googled it until I was tired, for weeks, using every possible term in the search. As I stated, the chip datasheet I found but that doesn't mean anything. My hope is that someone has already figured this out, sees this post and wants to help.
In 2019 a colleague went through the same situation here, and it seems that no one knew either:
Unfortunately, I could not find a datasheet of this sensor. I believe it supports serial communication. You can ask the supplier for the pinout. If you can figure out the VCC,GND, Tx and Rx pins, the rest of the task will become easier I think.
That may be because the suggestion in that post was to provide an image of the part of the device with the barcode and number on it.
Can you post an image of the bottom of your sensor where the PCB is.
A photo of the side where the square PCB is would be good. Get as close to it as you can when you take the photo and check that the image is in focus and not so dark that text cannot be read.
This is a wild guess, but having just seen images of similar modules with the flat ribbon cable attached, they have a second small PCB as part of the system. I wonder if the part you have is just the imaging module and the actual fingerprint recognition / image processing is done on on the second board.
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