As you may well know, Arduino’s analog inputs can be used to measure DC voltage between 0 and 5V (when using the standard 5V analog reference voltage) and this range can be increased by using two ...

Normally you’d throw in some resistors to form different voltage dividers depending on which ... And [Lauri] has posted an example of just such a program on his GitHub repository for an Arduino.

One might typically use a voltage divider to knock them down to the 5 volt range of the Arduino’s 10-bit A/Ds. But he isn’t one to take the conventional approach.

Many high voltage resistors are used in high voltage divider networks or sets, and this leads to another important parameter: ratio voltage coefficient (ratio VC). This is the difference in VC effect ...