Hullo...
I'm currently on a self-thought project. It is some kind of IoT-based attendance system.
currently, it's a system using RFID and HTTP requests with esp8266.
I am planning to upgrade it to use a fingerprint system and WebSocket with esp.
But the fingerprint sensor that Arduino support like R305 cant give Arduino the bit map(image) of the reading fingerprint, I think it's just not designed for it? a lot of forums said to read the data sheet, but R305 seems to not have a command to send an image back to arduino, (well except I'm the one who's dumb and miss something in the datasheet, idk I'm never read a datasheet before).
Instead, I think the sensor only stores the bitmap on a chip planted in the sensor and does all the matching process there.
Which is not good enough for an IoT sensor, I need the Arduino to actually be able to read the bit map and send it to the server.
Can anyone recommend a fingerprint sensor that can read the bit map and send it to Arduino?
If you have recommendations of communities that might help me with this, like a discord server or something, that would really help too, I tries posting this in official Arduino discord server on the "sensor" channel but no one responded, cross posting... but I'm desperate for a help
(please ping me if you have any recommendations )
also maybe if turns out R305 actually have the ability to send the image to arduino, It would be REALY REALY helpful if you guide me on how to use it c:
Of course, I have searched for that on google.
I know how fingerprint sensor work, It's just that I don't think the fingerprint sensor provided and supported by Arduino(R305) can send the fingerprint image back to Arduino.
And I'm looking for a way to let the Arduino board read that fingerprint image, so it can send those images to a server for IoT stuff
Did you read anything that hinted there was an "image" of the fingerprint?
Sorry, but I don't get what your point is. Is there something I miss or misunderstood?
A fingerprint sensor works by scanning your finger using optical or captive technology, producing an Image/bit map/2Darray or whatever you want to call it. Then the sensor store those images for future finger matching.
my only problem is that I don't find a fingerprint sensor that can send those images back to the Arduino board. And I'm looking for the one who can.
In case you're wondering,
I need the Arduino board to be able to read the image because I need the ESP to send those images to a server I made, I'm planning to make a fingerprint matching program in that server for IoT purposes
No.
It performs a parameter extraction on that image and uses those parameters to to compare to the parameters previously extracted from enrolled fingerprints.
No.
Only if you are enrolling a fingerprint is anything stored. And then only the extracted parameters are stored not the image.
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