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lcd里只有一个方法lcd.display（img）.我现在想让lcd显示一组字符串code.paylaod（）。具体应该怎么操作呢？是要在lcd里添加新的方法吗？
已经解决了，谢谢小智智
https://forum.singtown.com/topic/51/怎么在lcd屏幕中显示文字-画框-画十字-画圆
请问楼主怎么实现的，这方面我也没懂，谢谢
看我上面的链接，就是先img.draw_string(code.payload())在图像上加上字,然后lcd.display(img)把图像显示在LCD上