EVVIS-QR1 is a hardware device developed for Electronic visit verification. It is a standards-based TOTP hardware token that can also be programmed over USB. The OTP generated is shown on the display both as regular digits as well as a QR image. This makes it possible to minimize typos when entering the OTP.

 Specifications

Dimensions	74*53*12.9 mm
Weight	40 gr.
Screen	TFT Color screen 2.4 inch resolution 240*320
Battery type	Rechargeable lithium-ion battery + Disposable Battery (for RTC)
Battery life	Rechargeable battery = 3 months, rechargeable via USB port Disposable Battery = 6 years
Algorithm	TOTP as per RFC 6238 6 digits OTP Configurable using USB Config tool Hash SHA1 or SHA256 Time step: 30 s or 60 s
Features	USB Programmable - seed and TOTP parameters (hash type, time offset) can be set using USB Config tool OTP is shown as a QR code HID/Keyboard emulation (OTP sent via USB to avoid manual entry) USB cable included

One-touch OTP Entry

EVVIS-QR1 device can send the OTP over USB thanks to HID emulation function built-in ^{Windows only}. This will allow minimizing the user actions needed to authenticate with any 2FA-enabled system.

OTP shown as a QR image

The devices showing the OTP as QR code have the most potential of greatly improving user experience when a special app is used. This is perfect for TOTP based electronic verification systems.