Whaaat?? How To Extract HEX Code from Arduino

🔥How to extract an existing code back from an Arduino using AVRDUDESS. Store the code in a hexadecimal file and then be able to upload it to any other Arduino. Full tutorial for Flash, EEPROM and fuses part.

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00:00 Intro
01:47 The microcontroller
02:40 AVR Blocks
04:07 Flash Memory
05:44 ISP Programmer
06:35 Extract Fuses
08:21 Extract Code & EEPROM
10:15 Upload back the code
12:14 Thank You

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#electronics
#homemade
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[kunalrai]

This is most helpful video for me because I wanted to know this in my college time, at that time I didn't found any video with in proper way.

[Pidd]

finally there is also a discussion on how to extract HEX files. this is very helpful, where I sometimes forget to save the uploaded INO project file

[markgunnison]

Perfect timing. I’m just starting to learn to program directly to chips.

[neozeo]

wow very nice tutorial! Thanks! definitely need to check out extracting the EEPROM

[walter]

Amazing...you're best engineer ever..regards from guatemala

[stchupidee]

Thank you so very much-this helped me get some key code uploaded to my Nano. As a newbie this would not have been possible without your help. I'm very grateful. Thank you.

[proximasmentes]

Such a great tutorial!! Thanks so much!! It was the first time I could achieve the cloning of a 328P! :)

[ezzeldin]

This could save me in a lot of situations, Thanks bro!

[AJayTheStageArtist]

Oh my this is i looking for from long time..thank you so much for your effort

[yameenansari]

Thankyou for everything you uploaded very helpful for me to understand really love you brother from India ❤

[monolith]

All your videos are great! Arduino is a learning starting point - your videos are completing that!
Hope you will find a way to use arduino as a working base for programs loaded on a SD mem card, witch are uploaded with a push of a button

[ricardomarques]

Great video, nice to see these videos.

I use the avr PROGISP software which allows all that, and is compatible with multiple AVR Microcontrollers, it allows the user to lock the bootloader, look to which fuses are being configured, etc...

[daddyroger]

This is what i want to know how to extract from microcontroller many years now when i start learn about Arduino now you start make that video

[JonathanDeWitt]

Andrei,

I really appreciate this video. It is very useful information to know. I'm a member of many Facebook microcontroller groups. In one of the more popular groups Arduino for Beginners I see the question come up all the time about extracting code from an Arduino. I've never heavily researched the topic myself because I've never had the need. But it is useful and helpful to see how it is done. Thank you for taking the time to create and share this :) Now I have a specific tutorial I can refer those who ask that question.

[nzoomed]

Something that should be mentioned is there are fuses to prevent the reading of the code so no one can copy your work if needed.

[kartikrajurkar]

Very nice video, really appreciate your work. I think this method only works when the controller is unlocked via are fuses, once controller is lock (hardware lock) we may be able to read fuse value but reading hex and reprogramming the controller again will not be possible. Be careful while locking the controller 😉

[aniruddhabnj]

Could you please share the fuse bit settings that will stop copying the hex file

[kiatech]

Thank you for the detailed video; very informative.

Can I extract the flash from ATmega328P and then upload it into a different ATmega chip model, like ATmega2560?

[FridayHouseXYZ]

Neat! I will have to try this on a few boards. Makes me want to look for a way to convert the HEX into code again.

[nguyenback]

Hi, can you show me how to calculate phase transition time or correct phase transition in your source, i have watched many times but still don't understand this part, by the way can i ask for some advice on phase transition after detecting zero point is 3 opame. thank you