QwiicBus Endpoint - Differential Communication w/ Easy Plug & Play

The SparkFun QwiicBus EndPoint is an innovative product that revolutionizes the process of extending your I2C communication bus. Utilizing the PCA9615 IC from NXP, it effectively transforms the basic pair of I2C signals into four differential signals - two each for SCL and SDA. These signals are then transported over an Ethernet cable that links to the device through built-in RJ-45 connectors. Such an innovative approach enables the I2C signals to span up to 100ft, all the while retaining their original signal integrity.

One key feature of the QwiicBus EndPoint is its exclusive reliance on I2C communication, incorporating SparkFun's user-friendly Qwiic system, which eliminates the need for soldering. However, for those who would prefer using a breadboard, SparkFun has also included 0.1"-spaced pins as an option.

The simplicity of the QwiicBus EndPoint sets it apart. Unlike other methods of I2C communication, which necessitate conversion into another protocol like RS-485 or 1-Wire, the PCA9615 maintains the inherent I2C protocol through the use of a differential transceiver.

In an updated iteration of the Differential I2C Breakout, SparkFun has incorporated two 0.1" spaced pins. These pins are connected to the unutilized pair of wires on the RJ-45 connectors, providing users with the option to utilize the spare pair for various other applications.