Voltage Dividers for an Analog Input: Ratios and Resistor Pairs
This lesson is part of the course
In this lesson
You calculate the top resistor that scales four higher voltages into the range of a 3.3 V analog input, then check the output, the current the divider draws and how much of the input range each signal uses.
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Lessons in this course
- LED Series Resistors: Ohm's Law, E12 Values & Resistor Power Locked
- Voltage Dividers for an Analog Input: Ratios and Resistor Pairs Locked
- ADC Resolution: Counts, Volts per Step and Sensor Values Locked
- Thermistors: From ADC Count to Temperature with the Beta Equation Locked
- RC Timing: Time Constants, Charge Curves, Debounce & Timer Frequency Locked
- PWM: Duty Cycle, Average Voltage, Gamma-Corrected Brightness & Servo Pulses Locked
- Power Budget: Average Current, Regulator Heat & Battery Runtime Locked
- Bill of Materials: Order Quantities, Price Breaks & Cost per Unit Locked