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实验四 触摸屏实验
学习TFT_eSPI库新的绘图方法。 【实验原理】 开发板使用的LCD显示屏,是一款带多点电容触控感知的屏幕。触控感知使用的GT911芯片,ESP32和GT911触控芯片是通过I2C总线进行通讯的。I2C通信是单片机与触控屏交互的理想选择,它仅需要两根信号线(SDA和SCL)就能实现 ...
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