Why is a Resistor Needed for a LED?
A current limiting resistor is used in series with a Light Emitting Diode (LED). In this post we will explain why we need this resistor. LED Current and Voltage Specifications …
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Arduino LED Resistor Value Calculator
The Arduino [1] Input/Output (I/O) pins can be used to control an LED and make it blink. It does this, by turning the output pin on and off. Arduino Resistor …
What is the Arduino Nano ADC Sample Rate?
The maximum sampling rate of the Arduino Nano Analog-to-Digital converter is 15 kilo-samples per second or 15,000 samples per second. It’s a 10 bit ADC which means it has 10 bits of resolution. …
What is a Voltage Divider?
Introduction A voltage divider, also known as a voltage splitter, is an electrical circuit or arrangement of components used to divide or reduce a voltage into two or more smaller …
Voltage Divider Calculator
Introduction This post includes two calculator tools Calculator 1 Enter The tool will calculate voltage drop V1 across R1 and V2 across R2. Formula Ohm’s law is used to calculate …