QC3.0 Hacking and Tutorial incl. QC2.0 (Mobile Power Supply) with Arduino

QC3.0 is the new standard for charger used by many companies, and therefore we get lots of compatible power banks and wall chargers. They deliver up to 12 volts and later up to 20 volts. And the voltage can be adjusted. Sounds like ideal for a Lab or a Mobile power supply. But unfortunately, the standard is proprietary. So let’s hack it using an Arduino Mini or an ATtiny. The old USB chargers were able to deliver 5 volts and around 2-amperes max. The new QC chargers provide up to 12 volts and 2A peak. And y