Learn: how LCD I2C works, how to connect LCD I2C to Arduino, how to program Arduino step by step. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with Arduino. Find this and other Arduino tutorials on ArduinoGetStarted.com. Feb 20, 2015 · Digital potentiometers typically have 8, 16, 32, 64, 100, 128, 256, or 1,024 taps. Figure A: There is always one more tap than the number of resistance values in a digital potentiometer. In this case, 128 taps and 127 resistors. See full list on circuitdigest.com Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.