You have to pull an extra wire from the sensor’s input voltage to your Arduino’s AREF pin, so you know what the actual voltage at the end of the cable is, so you can estimate the 10-90% range.

All Arduino boards have this pin, and it's connected to the built-in voltage regulator that makes sure your board receives a stable supply. For the Nano, the VIN pin is found on Pin 30 (although ...

A versatile compact Arduino power supply capable of providing from 4 to 40 volts and can output anything from 1.25 to 36 volts, with a maximum of 5A.

This Stackable Arduino Microcontroller Can Power Your LEGOs. mCookie is color-coded, cute, and capable of some pretty fantastic things. By John Wenz Published: May 18, 2015 12:47 PM EDT.

DIY Arduino power bank with display and 60w power output. 11:07 am February 3, 2022 By Julian Horsey.

Figure 2 A voltage supervisor example with a timing diagram, monitoring the 0.85 to 6.0 V supply rail for sudden voltage drops to take action in the event of a power loss. Source: Texas Instruments.