Adafruit has this week announced the arrival of the new Arduino compatible TCA9548A I2C Multiplexer to their online shop, which is now available to purchase priced at $6.95. The latest breakout ...

This is a task that can be handled by a microcontroller, so in goes an Arduino Nano, which along with a few other board modifications delivers a serial-controlled studio router.

The Arduino-based multiplexer. 8 controllers are wired in on the left, with a single connector running back to the NES. The Arduino is connected to the "tracking PC" via USB.

If you ever find yourself swapping between a mix of audio inputs and outputs and get tired of plugging cables all the time, check out [winslomb]’s audio multiplexer with integrated amplifier.… ...

The latest board from the team enables you to have up to 4 I2C busses connected to either your Arduino development board or Raspberry Pi mini PC and is also equipped with Grove Connectors and LEDs.