I2C is a two-wire communication protocol known for its simplicity. Despite this reputation, I2C does have its challenges: a limited number of bits for a unique address can create address conflicts, or ...

I2C在硬件上的接法如下所示，主控芯片引出两条线SCL，SDA线，在一条I2C总线上可以接很多I2C设备，我们还会放一个上拉电阻（放一个上拉电阻的原因以后我们再说）。 体育老师：可以把球发给学生，也可以把球从学生中接过来。 ⚫ 然后发出一个设备地址（用来 ...

概述：I2C通讯接口，是我们日常应用中使用最多的MCU外设。最早在MCU没有硬件I2C之前，都是通过GPIO口模拟I2C的时序来完成I2C通讯的。后来MCU带有了I2C外设接口，其硬件I2C的使用也变成了日常。更主要的是，在节省MCU资源的同时，其操作也变得更加简单和易用。

I2C has a seven-bit address space, and you’re thinking “when do I ever need more than 127 devices on a pair of wires?” So you order up some parts only to find that they have one, two, or three ...

If you’ve ever been laying out a network I2C devices inside a project box or throughout your robot’s body, you’ll probably know that I2C is not without its pitfalls. But for many of those pitfalls, ...