Sponsored by JLCPCB ($2 for 10 Boards): https://jlcpcb.com
Fingerprint padlock on Banggood.com: https://bit.ly/2NMJSiM
Teardown of a biometric padlock. Contains a printed circuit board with fingerprint sensor, motor and gearbox, lithium battery and a USB-C connector.

By Julian

Youtuber, shed dweller, solar charge controller aficionado

12 thoughts on “What’s inside a fingerprint padlock?”
  1. Avataaar/Circle Created with python_avatars HifiCentret says:

    Yeah and the wire can probably easily be cut by a diagonal cutter as well.
    But this lock is absolutely fit for its intended purpose – it's not something you'd lock up your shed with – it is a small lock for use on bags and suitcases to prevent opportunistic thieves pickpocketing while traveling. Where you'd normally use a small light (zinc alloy) combination lock – which is easily decoded by the way, but again remember it's purpose, nobody is picking it while you're near as that'll take far too long . But the the fingerprint offers the addition of far greater pick resistance – most likely a tool or great violence to bypass – and it offer convinience and no combination to dial and and re-scramble.

  2. Avataaar/Circle Created with python_avatars Neil Sanson says:

    Is that a servo motor?

  3. Avataaar/Circle Created with python_avatars electroumit says:

    Thank you. Useful video.

  4. Avataaar/Circle Created with python_avatars Noel Herron says:

    From the distant future.

    This looks more like a toy as some have said already. Given the gauge of the cable, I wouldn't use as anything more than a deterrent and wouldn't leave what it was protecting unsupervised.

  5. Avataaar/Circle Created with python_avatars Oswe Vega says:

    Thanks man. In using it only as a sensor which is much cheaper than diy parts…

  6. Avataaar/Circle Created with python_avatars Jacques B says:

    for that price no.

  7. Avataaar/Circle Created with python_avatars Devesh Khandekar says:

    Hey can I get some source for the circuit diagram

  8. Avataaar/Circle Created with python_avatars ajay s says:

    Do a inside of the other fingerprint of the same company

  9. Avataaar/Circle Created with python_avatars Richard Allsebrook says:

    How do you charge it? Do you have to remove the battery?

  10. Avataaar/Circle Created with python_avatars HboskO says:

    "My finger shows you the way"

  11. Avataaar/Circle Created with python_avatars Freds Bloggs says:

    One could easily think of it as clever which it is ………..as for the rest it's junk and has next to zero security as a lock!

  12. Avataaar/Circle Created with python_avatars Mahla Propyzm says:

    Apart from moderate violence they way in seems to be – loiter around the lock, await owner's return, distract him and press and hold so it goes to reset mode. Owner opens lock, unwittingly resetting fingerprint. Lock will then open in response to any finger. Pounce at leisure.

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