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能不能测量下LCD个引脚的电压?感觉应该是电压不正常
有1.65 1.8 2.09等好几种电压
我用手指按住四个com引脚就会好很多
液晶是1/3偏压,会不会单片机设置的是1/2偏压。
从哪查看单片机设置的是1/2 还是1/3偏压