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Lesson 19-1: Using an LCD Screen with Arduino

In this lecture, we learn how to use LCD screens, both 2-line and 4-line LCDs (LCD1602 and LCD2004). We first learn about the module, then we learn how to get the I²C address for the module, then we learn how to display text on both lines.

A counter example, which counts from 0, is shown. Then we learn how to measure the DC voltage from a variable resistor (or potentiometer).

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