Hi...

Nice work. I like these types of projects. What is exactly the chip that is processing the code? I mean, the ESP is only for internet connection, right (I have my own but never used it, :p) ? So, what is the chip you're using for the process of communicating with the LED matrix?

I am actually trying a small project myself, but I lose the drive frequently and I end up giving up now to come back to it some time later. I'm using an stm32L412 chip to control a fan that is supposed to cool my NVM2 drive of my LN node, using a thermistor and a couple other additional components, however, this stm32 is proving to be a little bit complex to learn and get along with it!