Fingerprintsensor R503 (Produkt-ID: 4651)

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Martin92
 
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Fingerprintsensor R503 (Produkt-ID: 4651)

Post by Martin92 »

Hi,
I tried to use a fingerprintsensor like in the subject with an Arduino UNO R3 but I can't find a working solution. I tried the the tutorial in the product description und many others.
My sensor's cable order is like in the Images of the Rugged Panel Mount Fingerprint Sensor with Bi-Color LED Ring - R503.
From left: Red Black Yellow Green Blue White
In the tutorial the cables have an other order. So I tried to follow the order of cables, not the color but without success.
I also tried to use the DFG Demo app with same Com port like in the arduino ide without success ("Open Device fail, please check the password and the device adress!") with empty arduino.

The LED ring does not flashing/lighting (not ever) and the serial monitor of example codes from the adafruit lib say "Did not find fingerprint sensor : ("

Is the a way to test the sensor with multimeter to for right cable order? Or can I simply power it to get a reaction?

Thank you for your help

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adafruit_support_carter
 
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Re: Fingerprintsensor R503 (Produkt-ID: 4651)

Post by adafruit_support_carter »

Nothing happens with just power. You need to control the LED ring via software. This example shows how:
https://github.com/adafruit/Adafruit-Fi ... ontrol.ino

If that example is not working as expected, please post a photo of your setup showing how everything is connected.

There's a User Manual linked at the bottom of the product page that shows the wiring pinout.
https://www.adafruit.com/product/4651
https://cdn-shop.adafruit.com/product-f ... manual.pdf

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Martin92
 
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Re: Fingerprintsensor R503 (Produkt-ID: 4651)

Post by Martin92 »

Hi, thank you for your answer. I uploaded an image of my circuit. I also tried an external 5v source without luck.
Green -> TX of Arduino
Yellow ->Rx of Arduino
Red -> 5V
Black -> Ground
The manual says that this is the right connection.
I swapped Green and Yellow, use white instead of any of this two (the tutorial in the description says so) but no Reaktion, just "Did not find fingerprint sensor :("

Thanks for any help
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adafruit_support_carter
 
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Re: Fingerprintsensor R503 (Produkt-ID: 4651)

Post by adafruit_support_carter »

Wiring is generally correct. However, the example uses software serial on pins 2 and 3:
https://github.com/adafruit/Adafruit-Fi ... ol.ino#L24

Try using this wiring with that example:

Green -> 3 of Arduino
Yellow -> 2 of Arduino
Red -> 5V
Black -> Ground

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Martin92
 
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Re: Fingerprintsensor R503 (Produkt-ID: 4651)

Post by Martin92 »

Sorry for the delay.
Can't believe but it works! Thank You very much!
I could swear I tried this combination with the example codes but nothing happend. The wiring in the pictures was for use with dfg demo program on windows.
The combination you wrote is the right for programming with arduino.
Now my project can go an.
Thank you for your time!

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