Debugging an Arduino Sketch Running on an Uno

How to build a hardware debugger that allows you to debug Arduino programs running on an Arduino Uno or ATtiny in 4 easy steps.

Table of Contents:
00:26 - Motivation
01:32 - GDB: The GNU Project Debugger
01:44 - Embedded Debugging
05:04 - Step 1: Install PlatformIO
08:31 - Step 2: Install firmware for HW debugger
11:08 - Step 3: Connect debuggger to target
16:42 - Step 4: Start debugging

[PCarew]

I would like to say a "Huge Thank You"
I have this working with Eclipse IDE under windows

[daCount]

We need more of such consistent videos.

[keen]

What an excellent video! . I used to use Atmel Studio for debugging and never use arduino for its lack of debugging, but now this open tons of new possibilities. Thank you for sharing this information

[mmfloom]

Please post part 2 as soon as possible

[oliverkrause]

Thanks for this insightful deep dive on Uno debugging! And I was wondering why I can't get Debugging configured when using a setup with an Uno board straight connected to the computer, haha ^^

[randallyoung]

Thanks for posting, I will use this every day!

[PCarew]

How does one revert a target board to normal program loading?
I cut the reset track on the target UNO, so that I can debug it using the DWire Arduino. Now that I have finished debugging, I wanted to revert the target UNO to normal Avr program loading.
I assumed that I just needed to 'resolder' the reset track, but that does not appear to be enough.

Please advise

[incxxxx]

From wheare you take extra_script ??? No one in dw-link. What ever you do you can not find, because it doesnot exist in dw-link.

[PCarew]

What value capacitor do you use between Reset and GND on the debugger board?

[PCarew]

Just wondering why you used the Arduino IDE to upload DW-Link? Why not use the PlatformIO IDE that you had already installed?

[JOHNT]

I wonder if this will work with a nano?

[incxxxx]

Your work in vain. Not enough information to run it.