How to Read and Extract HEX File from Arduino Board And Upload the HEX File to Another Arduino

How to Read and Extract HEX File from Arduino Board And Upload the HEX File to Another Arduino. In this video I'm gonna show you
how to read hex file from Arduino board and extract hex file from Arduino board , copy the hex file from Arduino board to pc , burn/upload the extracted hex file to another Arduino board , read and extract .eep file (EEPROM file ) from Arduino board and burn .eep (EEPROME file) to another Arduino.

how to read hex file from Arduino board ? here we are using Arduino as isp mode to make an Arduino as isp programmer and connected the target Arduino to Arduino isp programmer and by the help of Avrdude we can easily extract hex file from arduino /copy code from arduino board or extract code from arduino board.

Avrdudess is an avr chip programming software it have various options for setting configuration bits like fuse bit lock bit and also we can read back the fuse and lock bits from the chip too.
by this Avrdude software we can get hex file back from target arduino board.
you can upload this hex file to any other same type arduino or the same type microcontroller with same crystal speed also you can simulate this in proteus

Someone asked me about Arduino uno hex file download that 's what we did here. read back hex file is possible but someone asked me
how to retrieve sketch from Arduino ? , it is not possible to convert the hex file back to the sketch / c++ code but we can burn this hex file to any other same type arduino or same type chip/MCU running at the same clock speed.
now we extracted the hex code from arduino successfully , here we copied program from arduino uno by the same way you can copy any avr microcontroller's / Arduinos

how to upload hex file in arduino ? here we are introducing two methods to upload hex file to arduino the first method is the easy method by an application called xloader. by this application you can flash a hex file or burn hex file to arduino very quickly and easy.
The next method is the advance one by avrdude by this method you can program not only Arduino's but also most of any avr microcontrollers , also you can write eeprom / .eep file , hex file, set config bits and also you can read back from the chip. avrdude is a great tool for arduino/avr microcontroller hex file download and upload.

Someone asked me about flash hex with arduino ide which is not possible but the arduino ide always generating hex file in the compile time of a sketch and which is saved in a temporary location C/User/User name/AppData/Local/Temp/arduino_build over there you can find two hex file one with the bootloader and one without bootloader. always you can copy those files if you need with out closing the ide. remember it's a Temp file its only there when the arduino ide is not closed.

Here is the DOWNLOADS

Programmer Arduino to Target Arduino Wiring Diagram:

Avrdude:

Xloader:

Arduino Uno as programmer, Mega as Target Wiring Diagram:

Arudino Mega as programmer, Mega as Target Wiring Diagram:

Thank you
#MadebyAneeshmurali

[Ciiads]

IMPORTANT NOTICE:
After watching this video so many of you asked. how to do this with uno as the programmer and the mega as the target, mega as the programmer and the mega as the target.
and many of you guys requested the wiring diagram for that again and again and i helped many of you around the world through email. You know, answering tons of emails is so hard but that's not the case there is a probability to miss some of them. I don’t want that to happen like that. So I updated the video description. You can download those digram's from there. Even if in any case I miss your mail.
Have a great day.
Thank you .
Regars.
Aneeshmurali.N

[abpccpba]

I did not think would ever find a way to read/copy a hex file but here you are. Such a great help to me. I burned up my 3D printer board can still talk to it so thanks to you saved me a lot of work. : = }}

[CerealKiller]

I would like to also say thank you for taking the time to create, edit, and explain every detail step by step. You must have spent DAYS putting this together. Thank you again, sir. It has been a tremendously big help.

[calvinwong]

Hi, I really appreciate your video, detailed guides and attached resources. You have no idea how much it helped me. Although I couldn't make it work with 2 MEGA's as programmer and target, I repeated the steps using an UNO as the programmer instead, and it worked!
Thank you once again!

[gehirnenterprises]

This was so helpful. I can verify it works with Ardunio Leonardo, but the ICSP header must be used as the pins are different. It also works with Arduino Micro. Much easier than using Microchip studio in professional mode. Thank you Aneeshmurali !!!

[AGodwin]

Hey would anyone know if this could be used on a motorcycle ECU for saving and writing bin files through CAN bus?

[DanielStingBR]

Hi! How can I know what to put on the fuses, I only have the files. An error appears ....

[Khujandiho]

You're the best. Unfortunately youtube allow put only 1 like, but you deserve 100k likes. Thank you

[Thekillertastic]

Pretty nice video! Worked like a charm. Greetings from México.

[davidkinuthia]

hallo first is to thankyou for good explanation I'm glad i understood you very clear and was able to program using .hex its very nice of you thanks man

[Buddhas_Wisdom]

Amazing content sir it really helps me thanks 😊

[quantumtechnology]

how to know which code upload in atmega8 and how to get it back /COPY
but i dont hex file etc..

[syeduzairiftikhar]

Hi, informative video.
Been wanting to send HEX data (Register values and address) from one Arduino uno to another via Serial Communication. Not to forget trying to not convert the HEX data into Char, as would be needing the HEX data in the slave Arduino to perform some functions. Could you please make a video on it?
Regards

[sophesteban]

Hi! I am new to working with microcontrollers and was wondering if doing this is possible with different models such as using an GENUINO MEGA2560 EVAL BRD GBX00067 to an ARDUINO MEGA 2560 REV3 A000067. Thanks!

What will be the procedure for locking 🔒arduino uno code permanently, , so no one will think about cloning or coping code from atmega 328p ic or arduino uno help sir

[AMULYASHARMAIN_PA_]

Hi can we see/get Arduino program also from hex fix

[abuomardontadd]

hi thanks a lot i tried so many ways to load a boat loader and it fails but when i used your way in avrdudess it succeed and it is much easier than aurdino thanks again

[theDaftman]

to do what you have in this video is very simple one just need a rs232 port and PonyProg (free downloadable software) on your computer and a simple diy adapter that plugs onto the Arduino's icsp, one can then copy any code (hex file) from a Arduino in seconds. one can also load a hex the same way. even read/write the fuse setting.

[techandroid]

Brother I need your help!!!
I have a 8pin SMD Microcontroller which controls my pixel led belt and yes it is from China so no marking on the IC and also no datasheet to look for. As I physically inspected and found that pin 1 is (+)voltage, pin 5 is (-) negative and pin 8 is data out others ar Not connected anywhere on the pixel belt!! Now I researched and found Pic12F675 closest to it as the pinouts match.Now the help I want is that pixel belt is almost destroyed but the 8 pin SMD Microcontroller chip is still good and functional, so I want to Copy That Chips Programme so that I can use it on Arduino to controll my WS2812 pixel belt which is better and has more led!!Is there any way so that I can hook up the Data Out pin from the Microcontroller to Arduino and copy it's effects and create same effects code on Arduino and use it with other pixel belts??? Hope You can Understand and help me;

[user]

Thank you for explaining this. I tried this using 2 Arduino Mega boards and failed identify the MCU)-p). I selected ATmega2560 in MCU and also in Presets without success. I wonder, is there a difference and if so, what? Asking as I lost the libraries that made a TFT screen work, but was hoping to grab the info off a working Hate TFT's listed as X but not X, Y or even Z :/