Which the data bus SDA is a bidirectional pin used for input or output data.
其中数据总线sda是一个双向引脚，用于输入或输出数据。
2
The action can send data in the signal, which can be passed to the action in an object flow or inputpin (16).
此操作能够以信号形式发送数据，信号可以传递给对象流或输入插针(16)中的操作。
3
The paper detailedly describes its features, pin functions, operation functions and what should be noticed in application, also it provides a data acquiring system with temperature input via I2C bus.