Give it the number and capacity of drives, the RAID level, and maybe some options and it'll calculate how much space your btrfs volume will have.
This LED calculator will help you design your LED array and choose the best current limiting resistors values. To get started, input the required fields and hit "Design Circuit." Does the math for you, will output either a wiring diagram or schematic. Useful because it gives you defaults to start playing around with (who knows how many mA an LED draws off the top of their head? even I don't.)
Pick the color stripes, pick the number of stripes, and it'll tell you what value the resistor you have in hand is.
A collection of tools, calculators, converters, generators, encoders, decoders, and more of common use to IT. Can be built by hand but it's probably easier to download the latest release and unpack that.
A few years ago I noticed that most of the unit converters on the digital stores were ugly, not immediately usable, with ads and tracking software. I thought it would be a good idea to develop Converter NOW in order to solve all these problems!
It is made to be easy, fast and immediately useable: just start typing and immediately you have the real-time conversion with all the other units of measurement. It is customizable: the units can be reorganized according to your priorities and your use case. It integrates a Calculator that let you do the calculations in every page.
Currency conversions are updated daily. Choose your favourite dark or light theme. Full Smartphone, Tablet and Web app support. It is free, no ads, no analytics, no permissions (just Internet to update currency conversions). And first of all it is open source!
Online demo site: https://converter-now.web.app/
The service offers an endpoint that reads a string input and parses it. it decodes the base64 encoding and interprets it by breaking it down into smaller statements and solved following the order of precedence. It returns either an HTTP error code, or a solution to the calculation in JSON form.
Ideal for use in a faas container.
Convert any number into different numerical bases, such as binary, trinary, octal, and base-20.
A website that takes a parrticular frequency (in KHz) and a duty cycle (at least 50%, or on half the time, off half the time) and calculates the values of the two resistors and the capacitor required to generate that frequency using a 555 IC.
The subtle wit of Isaac Asimov.
A simple webapp that calculates the resistor and capacitor values to make a 555 generate a signal of a particular frequency.
Online app that converts file sizes into other units (i.e., megabytes into bytes, kilobytes into gigabytes).