Digital 1-to-8 I2C Multiplexer FAQ【DFR0576】

Q1:When a main controller is connected to two expansion modules at the same time, the data will interfere with each other.

A1:We have optimized this problem in our library file, you can disable the channel in the code, see the sample code in the link below for details:

https://github.com/DFRobot/DFRobot_I2C_Multiplexer/blob/main/examples/multiSsd1306/multiSsd1306.ino

If you have other questions, just feel free to post them in our forum for consultation. We will reply them as soon as possible and improve the product FAQ gradually.