LED scrolling message boards are widely used in: Notice board displays Public advertising boards Passenger information display boards in BUS/TRAIN/TRAM/MATRO, etc. Name or signboards of shops Most of these scrolling message boards are made up of a single RED-color LED. However, currently, there are multi-color LED boards and RGB LED boards are also available. In…
Bluetooth-based, password-controlled GATE
In many big bungalows, houses, rowhouses, or farmhouses, we may find an automatic GATE or automatic garage door. Such a gate or door opens automatically when the owner’s CAR arrives, and, after some time, it closes automatically. There’s no need for any gate-man (chowkidar or Gurkha) to open-close the gate or door when the car…