One Time Password (OTP) doorlock

Luca Dentella has just published his latest project, an Arduino-based door lock you can open using time-based OTP codes (compliant to the RFC 6238). “The simplest way to generate those codes is the use of Google Authenticator, a free mobile app. I’ve also prepared a simple webpage you can use to configure (scanning a QRCode) the app with the same secret of Arduino…”

For details and Arduino code link visit Luca Dentella’s blog.

Via the contact form.

This entry was posted in Arduino, encryption, open source, security and tagged , .


  1. Manuel Garbe says:

    Amazing, I’m looking for a place where apply this!

  2. Michal Czarnecki says:

    Server Room access. I found this looking for a place to buy one. The idea is that you can restrict access to a server room and force people to check in with the NOC. An engineer requires access and can’t get in until they call the NOC and get a 30 second door key access code.

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