TCA9548A I2C 8-Channel Multiplexer Breakout Expansion Board

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The TCA9548A Expansion Board is a versatile module designed to expand the number of I2C devices that can be connected to a single I2C bus. It is particularly useful in scenarios where you need to interface multiple I2C sensors or peripherals with a microcontroller, Raspberry Pi, Arduino, or similar devices, and you want to avoid address conflicts.

Specificatoins of TCA9548A I2C 8-Channel Multiplexer Breakout Expansion Board:

  • I2C Multiplexing: The module features an I2C multiplexer (or switch) based on the TCA9548A IC, which allows you to connect up to 8 different I2C devices to a single I2C bus.
  • Selectable Channels: It provides 8 channels, each capable of connecting to a separate I2C device. You can select which channel is active, effectively controlling which device communicates with the master controller.
  • Digital Control: Channel selection is accomplished through digital control signals. You can use your microcontroller to send commands to the TCA9548A to choose the active channel.
  • Voltage Compatibility: Typically compatible with both 3.3V and 5V voltage levels, making it versatile for different microcontroller platforms.
  • Address Configuration: Some TCA9548A modules allow you to configure the I2C address of the switch itself, reducing address conflicts on the I2C bus.
  • Size: 3.1x2.1mm

Features of TCA9548A I2C 8-Channel Multiplexer Breakout Expansion Board:

  • I2C Bus Expansion: The TCA9548A Expansion Board effectively increases the number of I2C devices your controller can manage, simplifying the interfacing of multiple sensors, displays, or peripherals.
  • Channel Selection: Its ability to select from multiple channels means you can control which I2C device communicates with your microcontroller at any given time.
  • Address Conflict Resolution: This module helps prevent I2C address conflicts when you have multiple identical devices on the same I2C bus.
  • Compact Design: Its small form factor makes it suitable for various embedded systems and projects.
  • Usage Tip:
  • Carefully plan your I2C bus layout and device addressing to ensure efficient communication between your microcontroller and I2C devices.
  • Caution:
  • Ensure that the voltage levels and connections are compatible with your microcontroller and I2C devices to prevent any damage.
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