树莓派 raspberrypi java spi 驱动 Ili9488 driver 3.5寸 tft lcd 屏幕

chenqide163: 优秀，但是对img_nparray读取每个像素点的那个循环，效率应该也不很高吧？我现在没有环境，没法验证下。

wdalfred: 用numpy的array代替image对象，再用numba优化，快乐不少 @nb.jit(nopython=True) def drawImg_old_bytes(img_nparray): bytes = [] for x in range(0, screenWidth): for y in range(screenHeight - 1, -1, -1): colorValue = img_nparray[y][x] red = colorValue[0] green = colorValue[1] blue = colorValue[2] red = red >> 3; # st7735s的红色占5位 green = green >> 2; # st7735s的绿色占6位 blue = blue >> 3; # st7735s的蓝色占5位 highBit = 0 | (blue > 3); # 每个像素写入个字节，highBit高字节，lowBit低字节 lowBit = 0 | (green