The TCA9548A 1-to-8 I2C Multiplexer is the perfect solution when you need to connect multiple I2C devices with the same address to a single Arduino or microcontroller. If you've ever encountered the issue of having two or more I2C devices with the same address, this multiplexer is the solution. It allows you to connect up to 8 identical I2C devices by acting as a gatekeeper, routing communication to the correct set of I2C pins.
Key Features:
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Multiple Device Support: Connect up to 8 I2C devices with the same address to a single microcontroller using this multiplexer.
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I2C Address Selection: The multiplexer itself has a default address of 0x70, which can be changed to any address between 0x70-0x77 for flexibility. You can even stack multiple multiplexers to control up to 64 devices by using addresses 0x70 to 0x77.
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Simple Control: To use the multiplexer, simply send a single byte to the device to select the desired set of I2C pins. Once selected, any future I2C communication will be routed to that set of pins.
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Breadboard-Friendly: The breakout board is designed to be used on a breadboard, complete with necessary capacitors, pullups, and pulldowns for easy integration.
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Logic Level Compatibility: It works with both 3.3V and 5V logic, making it compatible with most microcontrollers and I2C devices.
Setup and Usage:
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Selectable I2C Addresses: The device's I2C address can be adjusted from 0x70 to 0x77, and you can use multiple multiplexers on the same I2C bus.
Technical Specifications:
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I2C Address: 0x70 - 0x77 (selectable)
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Weight: 1.8g
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Product Dimensions: 30.6mm x 17.6mm x 2.7mm (1.2" x 0.7" x 0.1"