SparkFun Forums

[rlepricon]

Hi, All!

I need You help.
Some time ago I bought three fingerprint scaners GT-511C3 from sparkfun (https://www.sparkfun.com/products/11792).

In the description of this scaner declated such functions as "GetTemplate" and "SetTemplate" for downloading and uploading finterprint templates.

For example, I downloading template from one scanner and uploading to another.

According to datasheet, the function GetTemplate returns 498 bytes, but my fingerprint scanners returns only 88 bytes.

Does any one have the same fingerprint scaners?
If You has his scanners, please, test the fuction GetTemplate and give me a result of the testing. Did You recive the finterprint template wholly or You have the same situation as mine?

Some more information: I use this scanners with Arduino Mega 2560.

Thanks for Your help.

[mrmellen]

I'm working with the GT-511C3 connected to a PC. The GetTemplate function works okay for me - always returning the correct number of bytes, and returning consistent templates for each enrolled finger. The functions I'm having trouble with are GetImage and GetRawImage. They're both stopping after about 3200 bytes. I'll update here as soon as I get more information - our problems may be related.

[mrmellen]

I found out that my problem (GetRawImage timing out) was caused by using a slower baud rate; increasing the rate to 115200 fixed it. I doubt that's what's causing your problem, but it might be worth a look.