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HOME / PRODUCT CATEGORIES / CONNECTOR BOARDS / SPARKFUN DIFFERENTIAL I2C BREAKOUT - PCA9615 (QWIIC)
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SparkFun Differential I2C Breakout - PCA9615
(Qwiic)
BOB-14589
9
DESCRIPTION FEATURES DOCUMENTS
Uses the PCA9615 buffer
IC Supply voltage range 2.3-5.5V
Differential Supply voltage range 3-5.5V
draws 16µA of current
Extends I C bus up to 100 feet
Data rate up to 400kHz
2x Qwiic Connectors
2
2
Tags
BREAKOUT DIFFERENTIAL I2C PCA9615 QWIIC RJ45
SparkFun Differential I2C Breakout - PCA9615 (Qwiic) Product Help and Resources
TUTORIALS VIDEOS SKILLS NEEDED
Qwiic Differential I2C Bus
Extender (PCA9615)
Hookup Guide
MAY 31, 2018
Learn how to extend the range of
your I2C communication bus with
the Qwiic differential I2C bus
extender (PCA9615 ) breakout
board.
COMMENTS 4REVIEWS 9
Customer Reviews
4.8 out of 5
Based on 9 ratings:
1 of 1 found this helpful:
does what it is supposed to do!
about a year ago by Member #395282 verified purchaser
I tested at 1,6,25,50 and 100 ft cat 5e wire still delivers data.
Great for remote sensors
about a year ago by alpierce verified purchaser
I have been using RJ11 and RJ45 breakouts for running I2C sensors for a while, but always less than 2 or 3
meters. These will allow me to do much longer runs with solid data integrity. I’ve been thinking of doing
something similar and now SparkFun has saved me the trouble! The addition of the Qwiic connections is a nice
touch also. Great value in this product.
Extremely useful
about a year ago by Member #498156 verified purchaser
For fiddling around on the bench, the hot plug capability saves endless reboots - want to try a different qwiic
board? Unplug the RJ-45, plug in the new board, plug the RJ-45 back in and scan for it. I use a pair with a 1 m
Ethernet cable for just that purpose all the time.
I’m looking forward to using it for its other purpose (extending i2c/better noise immunity) as soon as I have a
need.
New product idea: combine a qwiic hat + 14589 (this) into one board.
fast and good
last year by Member #1465226 verified purchaser
item receive fast and good
I broke it
about 9 months ago by Member #278768 verified purchaser
Worked great using a 5 meter cable with a NodeMCU on one end and a 3-axis compass on the other end until
the compass got wet. The pga9615 leads shorted with green copper fuzz. Bought and applied some MG
conformal silicon coating to another board and so far it's working. Compass being used to report position of a
dual axis solar tracker.
Work Great, but Big for What They Are
about 5 months ago by Member #1510471 verified purchaser
Absolutely zero complaints about functionality. Dropped these in to a system where a 3m cable between a RPi
and a Teensy was providing "okay" I2C performance and now running at 400kHz without a single dropped
packet in 24 hours. My one and only complaint is that the board could be a lot smaller for what it's doing - I'd
guess 40% smaller without getting weird or complicated. But, that's only because my project has very tight
confines and every mm is a battle. For straight out long(ish) range I2C
performance, I am absolutely a believer. EDIT: On closer inspection, and in case SparkFun is reading - on the
next version of this board, it would be great if the 2 unused RJ45 pins were broken out somewhere on the
board. I got to them, but it's a little bit ugly!
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SparkFun Electronics ® / 6333 Dry Creek Parkway, Niwot, Colorado 80503
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Seem to work well
about 3 weeks ago by jmnoeth verified purchaser
I've not actually used this in a real application yet, currently in the testing phase. But, they seem to do what
they claim to do. Very easy to use, just plug in the i2c side via the qwiic connector, then plug a cat5/cat6 cable
into the rj45. Do the same on both ends and you're in business.
I2C bus extender
about 2 years ago by Member #1388115 verified purchaser
Initially, I was a bit confused by the online manual and instructions, but after some dialog with the
knowledgeable tech support chat person, I was able to verify it is ready to use without any modifications (for my
use case). For clarity, I am only running 5v I2C devices and my Arduino is using 5v logic. So it was just a matter
of connecting the VDDA, GND, SDA, and SCL lines on each module and connecting a Cat5 cable between
them and it worked (I'm not using the Qwiic connectors). Very cool and super easy to use! I like the fact that by
default it will source power and ground from the local module, so no need to run separate wires for that. Great
design feature! So if anyone needs to extend their I2C bus more than a few meters, these modules are well
worth the money and are super easy to use. -Mike
Really great
about 3 weeks ago by Member #504923 verified purchaser
I2C is a really great communications protocol, supported well by most uCs, and lots of sensors. I use this with
the Raspberry Pi, I configured I2C to run at 32kHz, and I bought a 100ft ethernet cable and wound it all over,
around motors and pumps, fluorescent lighting, and my signal still looks great! I think this chip will give CAN
bus a run for its money.
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SOMETHING.
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