![]() ![]() Here is a table of resistor combinations for leveling down commonly encountered voltages:.Do take note that the voltage divider can only work in one direction: level down voltages but not leveling up.5V to 3.3V) to avoid damage to the sensor which makes it safe for the sensor to handle. The voltage divider can help level the voltage down from a microcontroller (eg.This is where the hero: A voltage divider comes in and saves the day acting as a level shifter which interfaces two circuits that use different operating voltages. ![]() What happens when a sensor and a microcontroller with two different voltage meets? Without the voltage leveled down, for example, directly interfacing a 5V logic output microcontroller to a 3.3V input sensor can cause damage to your 3.3V circuit. ![]()
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