3 ms·

Regarding your Labrador: is there a way to get the power supply to output from say 0-5v and 10-999 mA? As someone getting slowly into a bit of hardware as a ho

by Mumps 5y ago

Regarding your Labrador: is there a way to get the power supply to output from say 0-5v and 10-999 mA? As someone getting slowly into a bit of hardware as a hobby, this has been a pain point for me (but also could easily be me just not knowing where to look, so please forgive the naivety!)

AussieWog93 5y ago
>is there a way to get the power supply to output from say 0-5v and 10-999 mA Unfortunately not. There's a 3.3V output pin (on the left hand side here: https://github.com/EspoTek/Labrador/wiki/Pinout https://github.com/EspoTek/Labrador/wiki/Pinout) but that's it. It's physically impossible to get lower voltages than that out, as the power supply subsystem consists of a boost converter attached to the USB +5V rail. That said, you can get pretty decent benchtop power supplies from AliExpress or eBay for under $50 - they're much more capable than Labrador's circuit (which is sadly limited by USB's paltry 2.5W output power plus a relatively inefficient boost converter).