Andrey Ovcharov

Tech blog

Andrey Ovcharov
  • Image dithering

    A few days ago I have taken part in the discussion on reddit about displaying JPEG image on black and white e-ink screen attached to the ESP8266 MCU. Original poster asked how to use external service to convert RGB image into dithered black and white one.

  • ESP32 implementation of WebAuthN

    Last weekend I was playing with ESP32 development board to implement FIDO2 endpoints. I have achieved some success - the Chrome can detect the device and tries to connect to it for the authentication.

  • WebAuthN - authentication without password

    Some time ago I was reading news and met a very interesting topic - passwordless authentication. The idea is great: instead of remembering multiple passwords for the different websites one could use special device called Authenticator