19-09-2017, 04:35 PM
Water graphics is a source that contains 20 solenoid valves that can display letters, numbers and designs. a tank of water approx. 8 feet higher than ground level. a large number of solenoid valves are connected to this water tank. now the space between the water tank and the floor will form a screen. and on the floor there is another tank to collect water falling from the top water tank containing solenoid valves. now this water is returned to the upper water tank through the engine. the solenoid valve can be compared to a faucet that can be opened or closed, but in this case these valves are controlled by a microcontroller.