It is that time again! SparkFun Electronics will be closed Friday, January 13th for our annual inventory day. Please keep in mind that any orders placed after 2PM (Mountain Time) on Thursday, January 12th will not ship or be prepared for local pickup until we open for normal operations on Monday, January 16th. In addition, tours will resume on Friday, January 20th. Thank you for your patience!

Member #503553

Member Since: December 29, 2013

Country: United States

  • I purchased the 3.3v device from Versamodule. I have the unit connected to a Raspberry Pi using the 3.3v power supply and 3.3v Rx Tx pins. I wrote a Python script to control the device. I run an infinite loop until the capture command detects a finger on the scanner.

    I am consistently getting NACK_DEV_ERR errors when trying to capture fingerprints and I’m wondering if the problem is related to the 3.3v power? Perhaps it is just a defective device? Should I attempt to connect the power pin to the 5v output on the Rpi?

    Anyway I’m curious if anyone else has had problems running the 3.3v unit from Versamodule.

  • Raspberry Pi

    I got a very basic Python script working that turns the LED on/off with the fingerprint scanner hooked up to the GPIO port of the Raspberry Pi. I’m still working on the code but I think I should have something fully functional in a week or two and I will post the code and configuration schematic here. FYI - I purchased the 3.3V model from Versamodule (http://www.versamodule.com/nano_nvmf.html) since this allowed me to attach the scanner directly to the RPi without using a voltage splitter or resistors (which I don’t really understand). Special thanks to J Hawley and Futureinventions for their code posted in this forum which to a large extent, I am reverse engineering into Python.

  • I know this has been asked before, but has anyone been able to get this device to work with a Raspberry Pi using the Python programming language? The RPi GPIO supports UART and there is a Serial library for Python so I assume it wouldn’t be that difficult to get this working on the RPi using Python.

No public wish lists :(