首先，将所有I2C组件的SDA引脚以串行方式连接在一起，再连接于Arduino SDA引脚 (一般为A4)。 其次，将所有I2C组件的SCL引脚串联起来，再连接到Arduino SCL引脚 (一般为A5) 第三，将所有5v (Vcc)引线连接到Arduino开发板的5v引脚，所有接地引线 (GND)连接到Arduino板子的GND引脚。

All that is needed is to connect the I2C pins of the microcontrollers and provide each with power. This project uses an Arduino as the controller and an arbitrary number of smaller ATtiny85 ...

很多人不知道怎么看着时序图写程序，下面结合一个非标准的I2C器件，教大家如何写一个高效的IO模拟I2C时序。 观察该时序，具备I2C的开始信号，I2C ...

A while ago I received a couple of I/O port expander modules that use the I2C protocol. Using that Chinese module, you can use only the SDA and SCL pins ...

I am guessing that you have an Arduino Uno board handy. Even though most of the available libraries (for PN532) are focused primarily on Arduino Mega, I still prefer the Uno, as it’s more comfortable ...

The official Arduino team of engineers and designers has been showcasing their latest creation at this months Embedded World 2023 technology event. The Arduino Pro Portenta C33 module features ...