Somehow recently after mounting to mine powerbank the Quick Charge module, I wanted a trigger for such devices. As I did not smile to spend PLN 40 on such a crap and I did not have more sense than the desire to have it, I decided to do something with the litter. There was another reason for self-construction - a lot of free time, because of this situation, most of them probably have too much time, and the weather is what everyone can see.
I found ready , simple and in total it triggers only QC2 correctly because QC3 has the ability to adjust the voltage every 200mV. QC3 will also release, but without 20V voltage, because for this you would have to change the stabilizer, and there will be no regulation every 200mV. In relation to the original, I changed the processor to the attiny45, because I had one. The system works and can be used to check our charger, or if we forget, we can damage some equipment connected to this system.
Cool? Ranking DIY