What it is
Aziz Bench is an independent project: free calculators, comparisons and reference pages for people who build with ESP32, Arduino, Raspberry Pi Pico and electronic components. It is run by an Italian developer with a passion for electronics, and it is available in English, Italian, Spanish, French and Brazilian Portuguese.
What you find here
There are 29 tools, from battery life and pinouts to wire sizes, LED strips, regulators, LoRa links and resistor codes, plus 290 reference pages in each language: I²C addresses, SMD and capacitor codes, connectors, transistors, battery voltage charts and side-by-side comparisons of chips, sensors and batteries.
How the data are checked
Every figure comes from manufacturers’ datasheets, standards or official documentation, and the source is noted next to the value in the site’s code. Each tool is checked separately before it goes online: formulas are recalculated on test cases, values are compared with their sources and the text is reread in each language. When a figure can’t be verified, the page says so instead of guessing.
How the site is funded
The tools are free and need no account. The site is paid for by Google AdSense ads. There is no sponsored content, and no manufacturer or shop pays to appear in the comparisons. The calculations run in your browser and the values you enter stay on your device: the details are on the Privacy page.
Found an error?
Electronics is all about details, and a datasheet can change. If something doesn’t add up, or if you’d like a new tool, write to us from the Contact page: corrections go online as soon as they are checked.