The ESP8266 is the answer to “I want something with Wifi.” Surprisingly, there are a number of engineers and hobbyists who have not heard of this chip or have heard of it but don’t really understand ...

该功能用于初始化SPI通信。 设置通信时钟。时钟信号由主机产生，从机不用配置。但主机的SPI时钟频率应该在从机允许的处理速度范围内。 ~ SPI_CLOCK_DIV4，4分频（默认配置）； ~ SPI_CLOCK_DIV8，8分频； ...

When people set out to learn to program, they often get mired in a lot of choices. What programming language should I learn? What will get me hired? What frameworks do I need to know? It goes on and ...