The small I2C multiplexer PCA9548A allows the connection of up to 8 I2C devices. The multiplexer has 8 different I2C addresses, from 0x70 to 0x77. This can also be used to control 8 multiplexers, resulting in 64 different I2C addresses. Using this PCA9548A expansion card is straightforward, and it can be used on a breadboard with capacitors and pullups and pulldowns.  Some headers are required, and once soldered in, you can plug it into a solderless breadboard.  The operating voltage of 1.8V to 5V allows you to run the 8-channel multiplexer at any logic level. Specifications: Size: 20x30mm (0.8x1.2in) 8 different I2C addresses Operating voltage: 1.8V - 5V Enables the voltage level implementation between 1.8V, 2.5V, 3.3V and 5V buses Max. Clock frequency: 400 kHz With your order at AZ-Delivery you get a product in the usual high quality and with fast delivery directly from Germany at a discount price! For further ideas and projects also visit our blog on the Internet or download our free eBooks on our website! AZ-Delivery: Your expert in microelectronics! https://elecena.pl/product/20759422/pca9548a-i2c-iic-multiplexer-compatible-with-arduino 2022-04-19 https://elecena.pl/product/20759422/pca9548a-i2c-iic-multiplexer-compatible-with-arduino 2023-09-25