“Most of our Arduino projects require a way to present us with information about their state, and very often an LED can be enough to indicate if a condition is true or false.
But, it is not uncommon that we need to display a lot more than just a Boolean state so we opt-in for using a more advanced solution in the form of a display.
In this Instructable, we will look into the Liquid Crystal Displays (or LCDs for short) and how we can connect them in our projects to display the information that we need.
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Tools and materials used in the video:
20x4 Character LCD
16x2 Character LCD
NodeMCU v3 board
DS1302 RTC module
PCF8574 I2C Adapter board