初始化：

c
void OLED_Init(void)
{
    oled_port_init();
    delay(4000);       //初始化之前的延时很重要！

    OLED_WR_Byte_(0xAE, OLED_CMD); //--display off
    OLED_WR_Byte_(0x00, OLED_CMD); //---set low column address
    OLED_WR_Byte_(0x10, OLED_CMD); //---set high column address
    OLED_WR_Byte_(0x40, OLED_CMD); //--set start line address
    OLED_WR_Byte_(0xB0, OLED_CMD); //--set page address
    OLED_WR_Byte_(0x81, OLED_CMD); // contract control
    OLED_WR_Byte_(0xFF, OLED_CMD); //--128
    OLED_WR_Byte_(0xA1, OLED_CMD); //set segment remap
    OLED_WR_Byte_(0xA6, OLED_CMD); //--normal / reverse
    OLED_WR_Byte_(0xA8, OLED_CMD); //--set multiplex ratio(1 to 64)
    OLED_WR_Byte_(0x3F, OLED_CMD); //--1/32 duty
    OLED_WR_Byte_(0xC8, OLED_CMD); //Com scan direction
    OLED_WR_Byte_(0xD3, OLED_CMD); //-set display offset
    OLED_WR_Byte_(0x00, OLED_CMD); //
    OLED_WR_Byte_(0xD5, OLED_CMD); //set osc division
    OLED_WR_Byte_(0x80, OLED_CMD); //
    OLED_WR_Byte_(0xD8, OLED_CMD); //set area color mode off
    OLED_WR_Byte_(0x05, OLED_CMD); //
    OLED_WR_Byte_(0xD9, OLED_CMD); //Set Pre-Charge Period
    OLED_WR_Byte_(0xF1, OLED_CMD); //
    OLED_WR_Byte_(0xDA, OLED_CMD); //set com pin configuartion
    OLED_WR_Byte_(0x12, OLED_CMD); //
    OLED_WR_Byte_(0xDB, OLED_CMD); //set Vcomh
    OLED_WR_Byte_(0x30, OLED_CMD); //
    OLED_WR_Byte_(0x8D, OLED_CMD); //set charge pump enable
    OLED_WR_Byte_(0x14, OLED_CMD); //

    OLED_Clear();
    OLED_WR_Byte_(0xAF, OLED_CMD); //--turn on oled panel

}

这些字符：

bash
 !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~

取字模方法：

效果：