We read every piece of feedback, and take your input very seriously.
To see all available qualifiers, see our documentation.
描述: 返回收到的串口数据的下一个字节(字符),但是并不把该数据从串口数据缓存中清除。就是说,每次成功调用peak()将返回相同的字符。与read()一样,peak()继承自Stream实用类。 语法: 可参照Serail.read()
另见: Serial.read()