※This article is based on esp-idf 4.0
https://github.com/olikraus/u8g2
ESP32 的硬件IIC默认的接口
// SDA - GPIO21 #define PIN_SDA 21 // SCL - GPIO22 #define PIN_SCL 22
参考:
https://blog.csdn.net/quangui666/article/details/81483645
components/u8g2/csrc/u8x8_d_ssd1320.c:339:22: error: 'u8x8_d_ssd1320_cs1_160x132_init_seq' defined but not used [-Werror=unused-const-variable=] static const uint8_t u8x8_d_ssd1320_cs1_160x132_init_seq[] = { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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