Electronic Toolbox Pro

Electronic Toolbox Pro is a comprehensive electronics reference and calculator app for students, makers, and professional engineers. It brings circuit calculators, component data, and pinouts into one fast, offline-ready workspace to speed up lab work, prototyping, and study. Core features - All-in-one electronics calculators: Ohm’s Law, voltage divider, LED resistor, RC and LC, filters, power, frequency, impedance, RF and transmission line tools. - Component and pinout library: color codes, package outlines, connectors, transistors, ICs, and popular microcontroller boards with detailed pin mappings and quick datasheet access. - Productivity toolkit: universal unit converter, searchable references, favorites and history, custom collections for projects, offline access, and optional cloud sync. Built for efficient electronics work, this electronics calculator app streamlines circuit design, troubleshooting, and learning with smart search, clean UI, and accurate results. Ideal for electronics education, high-efficiency lab work, and on-the-go EE reference.