The CJMCU-9548 TCA9548A 8-Channel I2C Expansion Board is an I2C multiplexer that enables seamless communication between multiple I2C devices and a single microcontroller, even if they share the same address. This module is especially useful when working with multiple identical sensors or peripherals in a project.
By utilizing the TCA9548A chip, this board allows up to 8 independent I2C buses to be controlled from a single I2C master device. It operates on a wide voltage range, making it compatible with both 3.3V and 5V logic levels. The user can select which bus to enable via simple I2C commands, preventing conflicts between devices.
Key Features:
- Supports up to 8 independent I2C channels
- Allows multiple devices with identical I2C addresses to function together
- Compatible with 1.8V, 3.3V, and 5V logic levels
- Configurable I2C address range (0x70 – 0x77)
- Supports standard (100 kHz), fast (400 kHz), and high-speed (1 MHz) I2C communication
- Low power consumption with standby mode for efficiency
- Compact and easy-to-use design, perfect for embedded systems and robotics
Applications:
- Connecting multiple identical I2C sensors in a single project
- Robotics and automation requiring multiple I2C peripherals
- Data logging with multiple I2C modules
- Prototyping and testing I2C devices with limited microcontroller pins
Note: Images are for illustration purposes only.
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