If your dvr mirror camera has stopped working this might help you out. ... https://www.youtube.com/watch?v=PQCGdIfkdcc

Using a leonardo to act like a usb keyboard for Alexa voice cammands So you can enter windows password at login screen,pause mute and control windows volume. I include the source so you can have your Alexa control what ever you want on your pc with this hardware. package links the files are not updated for new jason use the complete package to by pass that. Complete --180mb includes arduino Ide https://drive.google.com/open?id=1Qm70g2BuD62VlWnRxtKHScjLeyUARyZx Lite --20mb does not include arduino Ide https://drive.google.com/open?id=1Sd6A1ieqctmsuS0G53miXcv9Rg-MEJv3 ----links---- https://www.banggood.com/custlink/3vDKswdfNp // Leonardo Pro micro https://www.banggood.com/custlink/KvGGWIB1d8 //nodemcu https://www.banggood.com/custlink/G3Gvc96TyJ //esp8266 with programmer https://www.banggood.com/custlink/vKmKr941Ys //jumper wire https://www.banggood.com/custlink/KKv3WIgTdT //3v low trigger relay ....... ..... ... you can Say. Alexa Start "windows" (Will enter windows password at login) Alexa turn on "windows" (will enter windows password at login) Alexa turn on "bangs" Pc Alexa turn on Pc Alexa turn off "bangs" Pc Alexa turn off Pc Alexa Play "my video" (this might not work now) Alexa Resume"my video" Alexa mute "my video" Alexa turn up volume on "my video"by "30" Alexa turn down volume on "my video" by "70" volume control is windows master volume. "5-100" .......Replace the above "" with your own naming. .. since my first video Amazon has changed it so you can no longer say "video" you need something before it like "my video" If you say just video it will try to load its own video app . and also "play" does not work anymore you have to use "resume" ... https://www.youtube.com/watch?v=yauRjrJ__KY