Why use I2C communication with your transducer?

I²C stands for an integer-integrated circuit. This is a commonly used communication protocol that is flexible enough to be used for a wide variety of applications. Specifically, I²C is a serial communication method with bi-directional two-wire communication. Any sensors and secondary devices only communicate when asked to by the primary.

Benefits of I²C

I²C can handle many different devices, including:

• Microcontrollers
• Transducers
• EEPROMs

I²C is a digital communication, so it does not require ADC to read pressure. I²C also requires the same 3.3V low power as most microcontrollers. This means no 24V line is necessary for the pressure sensor.

What to Consider with I²C

When looking to install an I²C pressure sensor, there are a number of important questions to take into consideration:

Will the sensor(s) be close to the controller/main board? I²C works best at short distances less than 6 in.

What other devices are on the system? Installing more I²C capable devices increases the benefits.

Is 24V power required for anything other than the sensor? If it is possible, use I²C devices to reduce the entire circuit to 3.3V.