2019-08-29, 12:16 PM
You can use the range 0-1.1 or 0-5 for analog readings but all analog readings must follow this range.
So if you decide 0-5v for current sense you need to adjust the resistors for voltage accordingly. One advantage of using 0-1.1 range is higher resolution, the other is that signals from 1.1-5 volts will saturate the reading (same as 1.1) but not damage the arduino so this gives a higher overhead without needing a zener diode.
So if you decide 0-5v for current sense you need to adjust the resistors for voltage accordingly. One advantage of using 0-1.1 range is higher resolution, the other is that signals from 1.1-5 volts will saturate the reading (same as 1.1) but not damage the arduino so this gives a higher overhead without needing a zener diode.