SparkFunQwiic Mux Breakout - 8 Channel (TCA9548A) - Easily Read Multiple sensors with The Same I2C Address Or Communicate with Multiple I2C Devices with Different addresses - Board only
Descripción
🔀 Unlock Infinite I2C Possibilities — Never Let Address Conflicts Hold You Back!
- ROBUST RELIABLE - Operates flawlessly from -40°C to 85°C, perfect for demanding environments and professional-grade projects.
- COMPACT SPACE SMART - 1mm pitch JST connectors minimize PCB footprint, giving your design a sleek, clutter-free edge.
- FLEXIBLE ADDRESSING POWER - Configure up to 8 unique I2C addresses per board, enabling up to 64 multiplexed buses for ultimate device expansion.
- MASTER YOUR SENSOR NETWORK - Seamlessly manage up to 8 I2C channels on a single bus, eliminating address conflicts and boosting your project’s scalability.
- PLUG PLAY QWIIC ECOSYSTEM - 10 Qwiic connectors including 2 pass-through ports ensure effortless daisy chaining with polarized, foolproof connections.
The SparkFun Qwiic Mux Breakout (TCA9548A) is an 8-channel I2C multiplexer board designed to solve sensor address conflicts by allowing multiple devices with the same I2C address to communicate on a single bus. Featuring 10 Qwiic connectors for easy daisy chaining, configurable addresses for up to 64 buses, and a wide operating voltage and temperature range, it’s the perfect compact solution for scalable, professional sensor networks.
Reseñas
P**S
If you want to use more than one or two I2C devices, get this!
SparkFun's Qwicc circuits might be a little more expensive, but they are well designed and work reliably.The TCA9548A bus expander is a must for integrating a large number of I2C devices, especially if you are using the random unknown quality off brand devices on here or other store fronts. The address is adjustable from severable solder jumpers. It has integrated pullup resistors for each channel. It works well with EspHome.I have each device on it's own bus, to avoid having bus contention issues and calculating pullup values. This doesn't come with cables, so you'll need a Qwiic cable set to work with it. I purchased a crimper and some female socket pins and removed the male pins from the cables to give myself some extra breakout cables.
R**N
Plug the wired ends in by holding the board connector, not just the board
The female end (mounted on the board) seems a little fragile and may have lacked enough solder. If the board connector was held against the board, it would work, otherwise it was a ghost problem (comes and go without any noticeable or visual reason)Otherwise, 5 stars.I do with they would improve the Arduino example for this board, seems unnecessarily confusing initially when it is really quit simple. Also, the example would not run on my DUE board, what the....!
T**R
Works great
With a Qwiic cable assortment the whole project was plug&play.
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