Have a Raspberry Pi compatible single board computer that you wish had a better power solution than a micro USB? I’ve made a simple DC-DC converter that will take 9 to 24 volts and power your project via the GPIO header, providing up to 3 amps continuous supply. The benefits to not going through the microUSB are numerous, the primary one being voltage drop. The microUSB interface is not a power delivery medium, and has significant resistance to current.
https://github.com/Tonymac32/Pi-Power
This design provides power to the SBC via the GPIO header, and provides 2 USB A outputs for powering peripherals, and a 2×4 pin header with 5V if you prefer to use Dupont connectors. Bare PCB’s can be ordered via OpenHardware.io.
If you desire an assembled model, reach out to me, I’ll consider making a few available for purchase.