Like the the Vmarker-I the next gen interactive whiteboard solution: Vmarker-II is a sensible alternative for the expensive more known competitors that schools tend to buy. With this solution you can transform your computer with projector into a interactive digital whiteboard. Using an IR-pen you can interact with software programs on the whiteboard.
The Vmarker II uses a separate radio signal for bi-directional communication between the Vmarker pen and the Vmarker sensor. The buttons on the IR-pen are read by the Vmarker sensor, depending on the settings the sensor then controls the IR-LED from the Vmarker pen, so the IR-LED is only lit when needed, this saves a lot of energy.
Read more at http://www.vmarker.org.
Check the realtime tracking data of our prototype LoRaTAG's at: http://iot.elecgator.com
Industrial LED display
In automation processes often a 'error' message display is used. These display's mostly are big but simple segment display's which can be observed from a larger distance. (they are used in big production halls). Mostly these displays need a separate interface and/or controller to display the messages.
We have developed a display which uses the EtherCAT Fieldbus. An Ethernet based Fieldbus which is largely used in the industry. In fact we use the EtherCAT-P version which also includes power over the 4-Wire Ethernet cable. So only a single cable is required to connect the display and to have it controlled by the central processing unit.
The display itself is a matrix RGB LED display. Several sizes are possible, the standard configuration is a 400x800mm size display with a 128x256 pixels. With this graphical matrix display one is no more restricted to a 7 or 14 segment LED display.