Digital camera Pen and Dot Pattern – These interactive whiteboards Possess a microscopic dot sample embedded inside the writing area. A wireless digital pen contains an infrared camera that reads the dot sample to find out the precise spot about the board. That’s way too negative, as it’s the start https://yealink-meeting-board-8604578.collectblogs.com/79054435/the-smart-trick-of-yealink-meetingboard-that-nobody-is-discussing