Voltage Dividers

Contributors: jimblom

Resources and Going Further

Now that you've got the gist of one of the most common circuits in electronics, there's a world of new stuff to learn!

Would you like to learn how a microcontroller, like an Arduino, could read the analog voltage produced by a voltage divider?

• Analog-to-Digital Converters

With the power of the voltage divider and the ADC, you can accomplish a lot in the world of electronics. Check out these other great tutorials.

• Some varieties of accelerometers and gyroscopes have anlog outputs that must be read in on an ADC to get usable values.
• Pulse-width Modulation (PWM) is like an analog output, which is the opposite of analog input.
• The INA169 allows you to sense current using ADC.
• Using a voltage divider and the ADC, you can read in all sorts of sensors and variable components such as trimpots, joysticks, sliders, and force sensitive resistors amongst many, many more.
• The Arduino map() function
• Arduino Analog Pins
• The Uh-Oh Battery Indicator Hookup Guide uses a voltage divider to tell you if your battery is getting too low.