Considering that the two data to be displayed are temperature and humidity, only a display capable of displaying one to two lines is required. I chose LCD1602 liquid crystal display [10]. It is an industrial character LCD, which can display two lines of data, each line can display sixteen symbols, letters or numbers, just to meet the needs of the design. It is small in size, low in power consumption and good in display effect, and is a very practical LCD device.
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