This solution verification board is used to verify the functionality of the 30PIN 1.3-inch OLED display. In this verification board, the high and low levels of BS0 and BS1 can be controlled by welding R3, R4, R6, and R7 to control the choice of communication method; in SPI mode, D0 is the SCLK port and D1 is the SDIN port; I²C In mode, D0 is the SCL port, and D1 and D2 are connected to the SDA port.
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