TCA9548A – I2C Multiplexer

I show you how to use up to eight I2C components with the same address with the I2C multiplexer TCA9548A. Alternatively, you can use MOSFETs as well for this purpose.

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LED dot matrix display control

I show you how to control an LED matrix display and how you can create a running font. I use the LedControl library, but I also show how to do it without.

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