![]() So this is a very good circuit for showing how an arduino can directly control a 4-digit 7-Segment LEDĭisplay simply with only using transistors and resistors as additional components.Ī 4-digit 7-segment LED display has 12 pins. Resistance, the value is 9999 (or close to it). When the potentiometer offers its full, maximum That the potentiometer offers increases, the value steadily increases. When the potentiometer is offering 0Ω of resistance, the value is 0. Since we are using a 4-digit LED display, the values can vary from 0 to 9999, 0 being the lowest valueĪnd 9999 being the highest. The value of the potentiometer will be shown on the 4-digit 7-segment display,ĭepending of course on the resistance it is offering. In this circuit, we're going to connect an analog sensor to the arduino microcontroller,īecause it's very easy to deal with. Going to each digit of the LED display to drive them. Simply by using transistors to each of the digits of an LED display, we can have sufficient current Using any arduino microcontroller with no other external chips such as LED display drivers. In this circuit, we will show how to display numerals on a 4-digit 7-segment display just by directing How to Control a 4-digit 7-segment LED Display with an Arduino ![]()
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