Electronics Engineer Helper

Rostyslav Dovhaliuk

Sep 13, 2026

9.1 MB
File Size
Security
Everyone
Android OS

Download APK

How to install XAPK / APK file

About Electronics Engineer Helper

Calculators and references

One of the best apps for anyone interested in electronics. The app has the following calculators and references:

• Resistor color and digit marking (4, 5 and 6 band color code; 2 symbols, 3/4 digit and EIA-96 code SMD resistors code)

• Pinouts Guide (USB, Apple, Arduino, ESP32, ESP8266, Raspberry Pi, FireWire, HDMI, DisplayPort, DVI, VGA, RS-232/422/485, SD, PS/2, Audio Jack, RCA, MIDI, XLR, ATX, PCI Express, Thunderbolt, Fan, Microchip & Atmel, Radxa Rock Pi, LubanCat, Nucleo32, Flipper Zero, Ethernet RJ45, PoE, RJ11/RJ14/RJ25, SATA, M.2, LPT, Game Port, Orange Pi, Teensy)

• Ohm's law calculator

• Cable Voltage Drop

• Voltage Divider

• Schematic Symbols Reference (IEC 60617)

• Capacitor Code Calculator

• Capacitor Markings Reference

• Electrolytic Capacitor ESR Tables

• SMD Packages Chart

What's new in the latest 1.5.0

Last updated on 2026-09-13

Tables with typical ESR values of electrolytic capacitors with filters for operating voltage and capacitance.
Chart with dimensions of common SMD packages, including both metric and imperial designations.
New pinouts: Power over Ethernet (802.3af/at/bt), RJ11, RJ14, RJ25, ATmega328P, ATmega32U4, ATmega4809, ATtiny85, ATtiny84A.

Videos and Screenshots