This requires 3-5 GPIO pins on your Arduino. This particular display is operated via SPI. The pixel amount is also worth noting ( 84×48) so you know what you have to work with. The pixels are either 100% on or 100% off. One key aspect to take away from this is that it’s monochrome, so no colors here. These displays are inexpensive, easy to use, require only a few digital I/O pins and are fairly low power as well. This display is made of 84×48 individual pixels, so you can use it for graphics, text or bitmaps. These displays are small, only about 1.5″ diagonal, but very readable and come with a white backlight. It’s a 84×48 pixel monochrome LCD display. These displays were used in old Nokia 5110/3310 cell phones (before the smart-phone fad turned every cell phone into a TV). The product description on Adafruit gives a good overview of the display in general: This blog post will focus on this particular display and Adafruit’s accompanying Arduino library.
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