ToolAstro › Engineering

Engineering Tools (8 tools)

Ohm's law, resistors, LED, voltage, and electronics

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V=IR
Engineering

Ohm's Law

Calculate voltage, current, resistance, and power using Ohm's Law. Enter any two values to find the rest.
Res
Engineering

Resistor Code

Decode 4-band and 5-band resistor color codes to find resistance values.
LED
Engineering

LED Resistor

Calculate the correct resistor value for an LED circuit given supply voltage, LED forward voltage, and current.
V/2
Engineering

V-Divider

Calculate the output voltage of a resistive voltage divider circuit.
f\u03BB
Engineering

Freq/Wavelength

Convert between frequency and wavelength for electromagnetic waves and sound.
AWG
Engineering

Wire Gauge

American Wire Gauge (AWG) reference table with diameter, resistance, and current capacity.
dBm
Engineering

dBm/Watt

Convert between dBm and milliwatts for RF power measurements.
555
Engineering

555 Timer

Calculate frequency, duty cycle, and component values for 555 timer circuits in astable and monostable modes.