Python Programming for Arduino

Prototyping with the I2C protocol

In the previous section, sensors or actuators were directly communicating with Arduino via digital, analog, or PWM pins. These methods are utilized by a large number of basic, low-level sensors and you will be widely using them in your future Arduino projects. Beside these methods, there is a wide variety of popular sensors that are based on integrated circuit (IC), which require different ways of communication. These IC-based advanced sensors utilize I2C- or SPI bus-based methods to communicate with the microcontroller. As we are going to use I2C-based sensors in the upcoming projects, the section will only cover the I2C protocol and practical example to understand the protocol in a better way. Once you understand ...