It uses SH1107 driver chip to manage the display. Driver Chip : SH1107. 1.5" OLED Display SPI I2C 128x128. For I2C version U8X8_SH1107_SEEED_128X128_HW_I2C u8x8(/ reset= / U8X8_PIN_NONE);. Resolution : 128x128.
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