An OLED display works without a backlight. Thus, it can display deep black levels and can be thinner and lighter than a liquid crystal display (LCD). In low ambient light conditions such as a dark room an OLED screen can achieve a higher contrast ratio than an LCD, whether the LCD uses cold cathode fluorescent lamps or LED backlight. Due to its low thermal conductivity, an OLED typically emits less light per area than an inorganic LED.
By default, this module is set up to be 4 or 8-bit HD44780 compatible. The controller allows you to use it as a 100x16 graphic display as well - check the WS0010 datasheet for details.
Download the WS0010 Datasheet and Commands from Adafruit.
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