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7-segment LED display is the most commonly used type of display to represent changing numerical values. The principle is very simple - seven LED segments are positioned in a certain shape and by turning specific segments on or off, the shape that resembles a specific number is lit. This method of displaying numbers was first used in the beginning of the 20th century, but after the invention of the LED in ‘70, it is the most commonly used method to display numbers. It utilizes a fairly simple and cheap design with the numbers clearly visible. Be it a clock on the nightstand, a billboard at the airport, a gauge on some machine, a panel on some instrument or a display on the pump at the gas station - the numbers will be always easy to see and read, even in the dark.
UT-S 7 SEG R click uses two SMD ultra-thin DSM7UA20101 7-SEG LED displays, made with the patented technology that delivers thickness of only 2.1 mm. These displays are driven by the MAX6969, a constant current LED integrated driver from Analog Devices, which uses the SPI serial interface for communication and delivers steady and constant power source for the LED segments.