⚡ Electronics
Electronics
Ohm's law, LED resistors, ADC conversion, and electrical unit tools
3 tools|6 guides
🔧 Tools
Electronics CalculatorCalculate Ohm's law, LED resistor values, power consumption, and voltage dividers.
Electrical Unit ConverterConvert voltage, current, resistance, power, and other electrical quantities with SI prefixes.
Signal & ADC ConverterConvert ADC values to voltages, calculate PWM duty cycles, and convert between frequency and period.
📖 Related Guides
Frequently asked questions and concepts in Electronics
LED Resistor Calculation: Circuit Basics
How to calculate the series resistor needed to safely connect an LED, with practical wiring examples.
Voltage Dividers: How They Work and How to Calculate Them
The principle behind using two resistors to produce a lower voltage, with calculation examples.
ADC Basics: Understanding Analog to Digital Conversion
Key concepts in ADC — resolution, reference voltage, and sampling rate — explained clearly.
How to Read Resistor Color Codes: 4-Band and 5-Band
A complete guide to reading resistor color bands, including tolerance markings.
Battery Life Estimation: Why Actual Life Differs from Rated Capacity
How to estimate battery life from capacity (mAh) and current draw, and why real-world performance may differ.
Ohm's Law in Practice: V, I, R Calculation Examples
The fundamentals of Ohm's law and how to apply it in real circuit calculations.