Engineering Software

1. PADS
2. Altium Designer
3. Autocad
4. µVision IDE
5. Atmel studio
6. Fritzing
7. Orcad - schematic capture, simulation
8. Eagle - schematic, pcb 
9. KiCad - schematic, pcb, free
10. Micro-Cap - simulation

Analog filter software

1. Analog Filter Wizard (Analog)
2. Filter Design Tool (TI)
3. FilterLab​ (Microchip)

11. ​EasyEDA - web/desktop simulation
12. PartSim - web simulation
13. EveryCircuit - web/android/ios simulation 
14. ​Proteus VSM - mcu + circuit simulation
15. NI Multisim - circuit simulation
16. ​Mindi - analog circuit simulation
17. LTspice - circuit simulation
18. TINA - mixed signal simulation
19. TINA-TI - circuit simulation
20. Logisim - digial circuit simulation

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Component Distributors

1. RS-online
2. Mouser
3. Digikey
4. Sparkfun
5. Adafruit
6. SeeedStudio
7. Banggood
8. DFRobot

Development Board

Arduino Uno
NodeMCU (ESP8266)
ESP32
​STM32F103C8T6
​Raspberry Pi
Raspberry Pi Pico
VisionFive (Risc-V)

Datasheet search engine

Alldatasheet

Specification

Programming language

1. Bluetooth
2. HDMI
3. I2C bus
4. NMEA 0183 (GPS statement)
5. Near field communication (NFC)
6. SerialATA
7. Secure digital
8. USB
9. Qi Wireless charging
10. Zigbee
11. LoRa (Long Range)
12. I3C wiki, MIPI Alliance
13. RISC-V

1. ​C Language
2. Objective-C
3. Swift Language, SwiftUI
4. Java
5. Python, Pygame, tkinter, Flask
6. Javascript
7. Kotlin
8. MicroPython, CircuitPython
9. Node.js
10. MySQL
11. PyQt (Cross-platfom GUI toolkit)
12. Dart
    

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Cross-platform desktop platform

• Flutter (Dark)
• QT / PyQt
• JavaFx
  
• GoLang
  
• Electron.js
  

Cross-platform mobile platform

• Flutter (Dark)
• React native (JS)
• Xamarin (C#)
  

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Mobile Development

1. Android
2. iOS
3. Window Phone
   

Course

• MIT open courseware
• Udemy

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Useful electronic links

​Electrical Engineering Calculators
Tutorialspoint

• Basic
• digital
• microwave
• control system
• analog communication (AM,FM)
• power amplifier
• signals and systems
• Fourier transform, laplace transform, DFT
• Machine learning

Tom's hardware
​9to5mac
Thingspeak (IoT)​
​IFTTT (IoT)
Thingiverse - 3D printable files 
Component Search Engine - ECAD model (sch,pcb,3d)

Youtubers

​

• Linus Tech Tips 14.7M
  
• DroneBot workshop (Arduino, ESP32, Raspberry Pi) 431K
• The Coding Train 1.41M
• Strange Parts 1.84M
• GreatScott 1.64M
• Evan Kale 501K
• bitluni's lab 195K
• Jeff Geerling  (Raspberry Pi) 308K
• 8bit guy  1.37M
• iFixit (repair, teardown) 927K
• ​Sam Zeloof (DIY IC) 85K 
• ExplainingComputers 843K 
• EEVlog 858K
• Andreas Spiess 373K
• Daniele Tartaglia (DIY projects) 973K
• Gary Explains 261K
• Edwin H (Cantonese) - tech news 185K
• Two Minute Papers (AI)    1.25M
• Psivewri - repair 217k
• TronicsFix  repair 1.08M
• Dave's Garage - retired OS engineer 244k
• Computer Clan  - new tech, scam tech 365k

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Useful software

• Notepad++ : text editor
• VisualStudio Code : editor
• Hxd Editor - hex editor
• Advanced REST client 

Electronic projects

• Hackster
• Hackaday
• Instructables
• Tindie
  

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Forum

• All about circuits
• EEVblog
• EEweb
• ElectronicsPoint
• EDABoard
• EETop(Chinese)

Magazine

• Practical Electronics
• MagPi
• Electronics for you
• EleTimes
• Electronics Maker

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Data analysis tools

• Weka
• Orange
• Knime

Machine learning Resouces

• MIT Deep learning 6.S191​ (video)
• Machine Learning Full Course  10hrs - dureka
• Scikit-learn Crash Course - 2hrs (freeCodeCamp)

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Test equipment

1. USB protocol analyzer         
         Beagle USB 5000
          Voyager M4x (Teledyne LeCroy) ​
2. SPI protcol analyzer
         Beagle I2C/SPI Protocol Analyzer
          Logic analyzer (Saleae)
          Protocol analyzer (Prodigy)
3. PCI-e 
         PCI-e test card (PassMark)
         Xgig® 5P16 Analyzer/Exerciser/Jammer (Viavi)
        P5552A PCIE 5.0 Protocol analyzer (Keysight)
4. PC power supply tester
​       PassMark Inline PSU Tester (Passmark)
​       Xilence ATX PSU Tester (Quietpc)

Repair Resource

1. Motherboard (AliSaler)
2. Mobile (Tecnofond)

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Reverse engineering

1. IC reverse 
2. Cutter (Decompile a software) 
​3. Java decompiler
4. dot net decompiler