Coming soon - Power BFF for QT Py 🔌🤖🔋
We were recently working on a project where we wanted to power a QT Py ESP32 from 12V - but the only power input on the board was USB 5V max. So here's a quick design we made to allow using these smol boards with up to 20V power! In the center is an MPM3610 integrated buck converter, which will generate 5V from up to 20V input. A 3.5mm terminal block and 2.1mm DC jack inputs are protected with an MBR120 diode. The enable and an extra ground pin are brought out to solderable pads next to the terminal block so you can use a switch to disable the converter. These can give about 1 Amp output, which should be plenty. Since it's a very bulky add-on with through-hole components, it's best to use a socket header to plug a QT Py on top rather than trying to have it solder back-to-back.