SparkFun Differential I2C Breakout - PCA9615 (Qwiic)
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The SparkFun Differential I 2 C Breakout is the fastest and easiest way to extend the range of your I 2 C communication bus. The breakout uses NXP's PCA9615 IC, which converts the two default I 2 C signals into four differential signals, two for SCL and two for SDA. The differential signals are sent over an Ethernet cable, which attaches to the breakout through the on-board RJ-45 connectors The differential signaling allows the I 2 C signals to reach distances of up to 100ft. while still maintaining their signal integrity! To make it even easier to get your readings, all communication is enacted exclusively via I 2 C, utilizing our handy Qwiic system so no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.
The simplicity of the Differential I 2 C Breakout is one of its biggest appeals. Other I 2 C communication methods require packetizing I 2 C communication into another protocol, be it RS-485 or 1-Wire. However, the PCA9615 keeps the I 2 C protocol by utilizing a differential transceiver.
Whether you need to extend the range of an I 2 C sensor on an autonomous vehicle plagued with noise from motors or want to create a vast sensor network in your home or office, the Qwiic Differential I 2 C Breakout is a great solution to extend distance and reduce noise susceptibility.
- Uses the PCA9615 buffer
- I 2 C Supply voltage range 2.3-5.5V
- Differential Supply voltage range 3-5.5V
- draws 16µA of current
- Extends the 2C bus up to 100 feet
- Data rate up to 400kHz
- 2x Qwiic Connectors
- Schematic
- Eagle Files
- Hookup Guides
- Datasheet (PCA9615)
- Qwiic Page
- GitHub