fingerprint device 751

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mahmudhasan777
 
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fingerprint device 751

Post by mahmudhasan777 »

hello
i am from bangladesh , i recently purchased a fingerprint device id 751, i ve followed the video tutorial and plugged everything accordingly.i am using an arduino mega 2560 and after connecting it all i am getting is a single red blink and after uploading the code it shows "didnot find the fingerprint sensor"
i have soldered the wires with a header pin ,modified the code in following manner
#if ARDUINO >= 100
SoftwareSerial mySerial(10, 11);
#else
NewSoftSerial mySerial(10, 11);
#endif

still it is not working , and this is simply sad
any wise ideas why this is happening?

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adafruit_support_bill
 
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Re: fingerprint device 751

Post by adafruit_support_bill »

Most difficulties with this sensor can be traced to connection problems. Please post a photo showing all your soldering and connections.

mahmudhasan777
 
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Re: fingerprint device 751

Post by mahmudhasan777 »

i ve uploaded a video and photos in here https://www.mediafire.com/?x7c2hh1j7f9l ... 5llla5a0yb
eagerly waiting for a reply

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adafruit_support_bill
 
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Re: fingerprint device 751

Post by adafruit_support_bill »

Have you tried connecting directly via the SFG program?
Also, try making your connections direct to the Arduino headers. The breadboard is not required and only adds more opportunities for connection problems.

mahmudhasan777
 
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Joined: Sun May 04, 2014 7:04 am

Re: fingerprint device 751

Post by mahmudhasan777 »

yes i did try directly via the sfg program and also without the breadboard still no luck
all i am getting is that single blink and didnout find the fingerprint sensor error :(

mahmudhasan777
 
Posts: 9
Joined: Sun May 04, 2014 7:04 am

Re: fingerprint device 751

Post by mahmudhasan777 »

left no stones unturned ,need assistance plz

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adafruit_support_bill
 
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Re: fingerprint device 751

Post by adafruit_support_bill »

Did you try changing the baud-rate? Some of these ship with different baud-rates. It is usually one of the higher rates, but I would try: 19200, 28800, 38400, 57600, or 115200. http://arduino.cc/en/Serial/begin

mahmudhasan777
 
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Re: fingerprint device 751

Post by mahmudhasan777 »

i just did it is simply not working , i tried it with 4800, 19200, 28800, 38400, 57600, or 115200 still it says did not find the fingerprint sensor, this is BANNED

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adafruit_support_bill
 
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Re: fingerprint device 751

Post by adafruit_support_bill »

If you contact [email protected] with a link to this thread we can arrange for a replacement.

mahmudhasan777
 
Posts: 9
Joined: Sun May 04, 2014 7:04 am

Re: fingerprint device 751

Post by mahmudhasan777 »

that would be helpful,and could you please recheck the product before shipping this time ,
i have another query ,this product has a limitation of 255 prints is it possible to use a database where i can store the images and then do a 1:1 check with this.
i need to deal with at least a 1000 fingerprints,
thanks in advance

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adafruit_support_bill
 
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Re: fingerprint device 751

Post by adafruit_support_bill »

There are commands to read and write fingerprint data from the sensors, but we have not tried it here and do not have any examples or tutorials for that.

rebel_child
 
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Re: fingerprint device 751

Post by rebel_child »

Can we read the fingerprints from the sensor and save it somewhere else other then the device?
Also is the fingerprint stored as an image or a code?

mahmudhasan777
 
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Re: fingerprint device 751

Post by mahmudhasan777 »

i mailed your customer care representative followed the step now i am being charged an extra 82 dollars for the replacement,is this a joke
Last edited by mahmudhasan777 on Fri May 23, 2014 5:07 pm, edited 1 time in total.

adafruit
 
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Re: fingerprint device 751

Post by adafruit »

you're not being charged, please read the message carefully, it's a replacement order, no charge is applied.

mahmudhasan777
 
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Re: fingerprint device 751

Post by mahmudhasan777 »

i read it perfectly well, the way ur representative showed me i did the exact same thing but i am charged for the new purchase
heres what my new purchase convo says


Payment Method
------------------------------------------------------
Purchase Order
Last edited by mahmudhasan777 on Fri May 23, 2014 5:51 pm, edited 1 time in total.

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