Tools

Calculators, mini-simulators, and code generators for hardware engineering.

LED Series Resistor Calculator

Calculate the correct resistor value for LED circuits

Visualize Pulse Width Modulation signals

Calculate voltage, current, or resistance using Ohm's Law

Visualize the current-voltage relationship of LEDs and understand forward voltage

Visualize GPIO pin states and timing for blinking LEDs and digital outputs

Compare LED configurations - series, parallel, and mixed topologies

Simulate power bus voltage with wire resistance, loads, and optional capacitors

Calculate power dissipation and heat generation in resistors

Calculate voltage divider circuits with automatic solving