Display is a major component for Human Machine Interface (HMI). Graphic display's was a major concern in past decade as the technology was not mature. Most of the time projects were managed with 7-segment or 2 line character display which were seen in many public telephone boxes, EPABX, Billing machines... At present if we look at what display you can use with arduino - you will get a list of display that can be used from simple 7-segment to color graphics with I2C, SPI or parallel interface. Read more....
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