High quality and easy to use toolbox reference book and electronic calculators for electrical engineers and students.
A collection of electronics information structured for everyone from advanced engineers to DIY enthusiasts and beginners to enjoy.
Large library of interface and calculator resource pins – from resistor color codes to voltage divider calculators.
The application is essential for students and engineers.
New content is constantly being added.
Electronic calculators are currently being added as a priority.

All trade names mentioned in this app or other materials provided by this app are trademarks or registered trademarks of their respective holders.
This application is in no way related or affiliated with these companies.

ALL FEATURES ARE FREE AND UNLOCKED

Calculators:
Connection of resistors
Connection of inductors
Connection of capacitors
Sine Voltage Calculator
Analog-to-digital converter
Ohm’s law
Value Resistor Color Codes
Voltage Divider Calculator
Color Coded Resistor Value
SMD Resistor Calculator
Inductor Color Codes
Wave Parameter Converter
Range mapping converter
Battery life calculator
* New calculators arrive regularly

Interfaces and Pinout:
USB
RS232 serial communications
parallel port
ethernet
recorded jack
scart
DVI
hdmi
Display Port
VGA
S-Video
VESA
Analog Audio
CVBS
AV Composite Analog
YPbPr component video
S/PDIF
FireWire
DMX
ATX power supply
POWA
SATA
IS A
EISA
MCA
LV bus
PCI bus
PCI-X bus
PCI-Express bus
AGP
PS/2
Keyboard
MIDDAY
game port
Flash
PDMI
OBD2
ISO car radio
SD card
SIM card
GPIB
JTAG
ISO trailer

Boards:
Arduino UNO R3
Arduino Nano
Arduino Pro Mini
Arduino Leonard
Micro Arduino
Arduino Nano Each
Arduino Mega2560 Rev3
Arduino Nano BLE
Arduino MKR Zero
Arduino Uno WiFi
Arduino due
Arduino MKR Vidor 4000
Arduino Zero
Arduino Nano 33 IOT
Arduino MKR Fox 1200
Arduino MKRWAN 1300/1310
Arduino MKR GSM 1400
Arduino MKR Wi-Fi 1000/1100
Arduino MKRNB 1500
Arduino Nano RP2040 connection

Resources:
USB power specification
USB PD – Power
USB Speed ​​Specification
Electrical resistivity and conductivity
AWG and SWG wire sizes
Intensity table
Standard resistor values
Standard Capacitors Values
Capacitor operating voltages
Marking of capacitors Codes
CMS Size Information
Standard symbols and acronyms
Unit prefixes
ASCII control characters
ASCII printable characters
Extended ASCII characters
Cylindrical cell batteries
Cylindrical lithium-ion rechargeable batteries
PP Series Batteries
Button batteries
Convert decibel to watt
Frequency Information
Radio band information
Platinum resistance
Fuse color code
Color code DIN47100
Different voltages depending on the country