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Question 1: How many volts can 1:OLED modules be used in the system?
OLED module is used in 3.3V system by default.
Question 2: Why doesn't the 2:OLED module light up when it is connected to the power supply?
OLED has no backlight, and the display is self-luminous. Only VCC and GND are connected, and OLED will not light up.
You must use program control to highlight OLED.
Question 3: What should I pay attention to when using this OLED module?
1. Be careful not to connect the power supply reversely.
2. You can't display the same picture for a long time, otherwise, it will produce afterimages, which will lead to OLED damage.
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