I’ve wanted to add current and voltage sense capability to my PixRacer, but I’m confused as to what voltage the sense pins expect. Most of the APM modules I’ve found output 0-5v ADC. However, the Pixracer board specs (https://pixhawk.org/modules/pixracer) list it’s current and sense pins as limited to 3.3v.
What power module should I use for the racer that will output its ADC in the correct 0-3.3v range? Is there a way to change the ADC output of power modules without using a voltage divider circuit? Like can I reflash the firmware or something?
Currently, I’m using this (https://www.amazon.com/FPVDrone-Module-Current-Pixhawk-Controller/dp/B06XFW1X3K) but without the current or voltage sense pins connected.
Thank you for any tips/guidance provided. This is my first drone I’ve built and would hate to accidentally fry the flight controller.