DC-AC Inverter 12V - Mixer USB Upgrade || DIY

In this video I build an inverter for the TMX-2211 mixing console.
The 12V AC voltage is a thing of the past. From now on, the mixer is powered via USB-C. The Arduino Nano and L239D generate the necessary AC voltage and the 12V comes from a boost converter.
The self made inverter is not comparable to a real inverters or an AC power supply. In theory, the diy inverter generates a square wave and not a sine wave. For this reason it is not suitable for every device.