Electronics
Understanding Resistors
Learn resistor color codes, power ratings, and applications in circuits.
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Electronics Basics
Learn resistors, capacitors, diodes, and circuit fundamentals.
BeginnerOhm's Law & Tools
Interactive calculators for basic electronics calculations.
BeginnerWeb Development
Build your first website with HTML, CSS, and JavaScript.
BeginnerTransistors & ICs
Understand semiconductors and integrated circuits.
IntermediateMicrocontrollers
Arduino, ESP32, and STM32 programming basics.
IntermediateAdvanced Systems
Complex circuits, troubleshooting, and optimization.
AdvancedInteractive Calculators
Essential tools for electronics and circuit design. All calculators work offline.
Ohm's Law
Calculate voltage, current, resistance, and power in DC circuits.
Try Calculator →LED Resistor
Find the right resistor value for your LED circuits.
Try Calculator →Power Calculator
Calculate power consumption and amperage needs.
Try Calculator →Voltage Divider
Calculate resistor values for voltage dividers.
Try Calculator →RC Time Constant
Calculate capacitor charge/discharge times.
Try Calculator →All Calculators
View complete calculator suite with 12+ tools.
View All →Learning Guides
Step-by-step tutorials organized by category and skill level.
Electronics
Capacitor Fundamentals
Types, capacitance, voltage ratings, and practical usage in circuits.
Electronics
Transistor Basics
Bipolar and MOSFET transistors, switching and amplification circuits.
Electronics
Microcontroller Intro
Introduction to microcontrollers, programming basics, and applications.
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