How to Reset Arduboy if it's Bricked

Hi guys,
finally i got my Arduboy, but…
I try to reset it, several times, mood on and mood of, and nothing, doesn’t work.

First, when I turn on my Arduboy, the first image is the “Team A.R.G.” theme and not the arduboy one, is it normal?

Second, when i try to reset my Arduboy, no sound or yellow light near the red one.

Could you please help me? Trust me, I try to reset in different time my Arduboy.

At the end, is it possible a problem on my USB port on my Macbook Pro? Is it possible my macbook cannot recognize the Arduboy device?

Thanks for help me!

Hi all,

actually I think I have bricked my Arduboy. I am using platformio but it seems that it allows me to flash more that the allowed 28672 bytes (I do not have the log anymore but it was above 28700). Now my little Arduboy sometimes starts the software that I flashed and sometimes the yellow/green leds near the USB port start flashing wildly. I tried all the above suggestions also from the other “bricked” threads but nothing works. I even made it to make the board into bootloader mode and tried to flash manually with avrdude without resetting (1200bps dance) but as soon as the bootloader kicks in the leds start blinking wildly. The after some time avrdude stops with errors. The leds keep blinking even without the USB cable connected. Only power cycle helps.
Now I think I need to flash the bootloader again.
I opened the device and found the 6 pins of interest. Is there any procedure how to attach there and flash the bootloader? Anything that I keep in mind while trying this?

I have an AVR MKII ISP that I could use for flashing. It will need some MacGyver like skills attaching to the pins.

Any help is appreciated.

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Exactly the same thing happened to me.
Have no experience with arduino so i have no idea what and how you have to flash but i’m following this post.

This is normal for a factory flashed unit.

Is there a reason to reset the device? You should only need to reset it if the software upload fails, or there are some bugs with the software that reloads.

If you plug it into your PC or Macbook and the device is not recognized then you should try to use a different USB cable that has support for data transfer (preferably something that you’ve used to transfer files before). If using different cables does not work and you are still on the original software then please contact us via the store page and we can try to help you out directly.

Both Arduino and Codebender will prevent you from trying to flash a file that is too large, I have no idea if this is baked into AVRdude and I’m not familiar enough with Platformio to make any suggestions there. I didn’t think it was technically possible to overwrite the bootloader memory space over USB (without some creative hacks to do it intentionally).

@veritazz if you could take a video and post it in a new thread of this behavior I think it would be helpful because I’ve not run into it before.

The pins required for re flashing have circles around them and are clearly labeled. You can use any online tutorial for flashing an arduino leonardo on the arduboy.

NOTE: We are currently using the leonardo bootloader but will likely switch to something custom in the future.

It seems that we need to update the bootloader to take advantages to the changes in arduino that will eliminate the bug related to programs taking up too much RAM. Still trying to dig into that one fully.

@Botisaurus Were you using platformio also? Or is it a more general error, let us know some more details and feel free to open a separate support thread with a video or picture if you want.

If the fuses were set properly at the factory to protect the program area used by the bootloader, it should be near impossible to overwrite or otherwise corrupt it in any way, regardless of the size of the sketch you’re trying to write, or what software you’re using to write it.

@bateske, You may wish to check how the fuses are being set in the Arduboy and how they compare to a Leonardo. The Leonardo uses LOW:0xFF HIGH:0xD8 EXTENDED:0xCB LOCK:0x2F

For bootloader protection the important ones are the HIGH and LOCK fuses.

I like to use this fuse calculator for working with AVR fuse configurations.

Not sure the LOCK fuse was set :frowning: It should be the same as leonardo but I can only confirm the other bits. Maybe these occurrences with platformio means it’s not, and we’ve get something more that can be fixed in our next batch…

Jup i was using it.
I have already uploaded 2 videos on another thread. I can’t search for it right now since i’m on the phone.

this thread.

Thanks to all for the help. I finally brought it back to life by reflashing the bootloader using an AVR MKII ISP and some wooden clothespin. It was quite a ride as the connections where not very stable but I could hold it until the write was finished.
Here are two videos when it was still bricked:

This is a video (could be also a picture) where I tried to flash the bootloader via the Arduino IDE. You need to select the leonardo board and choose Tools->Burn Bootloader (before that select the programmer you have, do not forget to switch on your Arduboy). Use Arduino IDE 1.6.9.

I do not know if the lock fuse is set. How can I read it? Avrdude prints this:

avrdude: safemode: lfuse reads as FF
avrdude: safemode: hfuse reads as D8
avrdude: safemode: efuse reads as CB
avrdude: safemode: Fuses OK (H:CB, E:D8, L:FF)


Here is a closeup of the clothespins. A bit flimsy but after some tries it worked. :sweat_smile:


I’m only interested in one thing: TELL US MORE ABOUT YOUR GAME !!! :slight_smile:

Oh boy… good job.
Sadly too complicated for me since i have no necessary equipment nor the knowledge to do that. :frowning:
In addition to that my battery broke down (yeah i’m pretty talented) so i would need an replacement for that too and need to solder everything. :frowning:

I hope to finish it soon. Actually your character can throw things on the people passing by. They in turn want to break the door into the house. If they succeed you loose… kind of makes me feel like a kid.
The code is a mess and I constantly have new ideas. So I want to finish it soon. The graphics take me ages… I am not very skilled in that. Its my first game ever. My goal was this weekend… fingers crossed.

@Botisaurus Sorry to hear that. You can also use another Arduino to program it. Maybe you have a fablab in your home town? Usually there are people that are familiar with that.

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Did anybody try to upload a game using Arduino IDE 1.6.9? I have the feeling that with big sketches the upload fails even when pressing the reset button (or holding the UP key while switching on).

BTW: When I use the latest platformio (2.10.1) there is no such issue.

Arduino did make a change to how the reset and reprogramming works on 32u4 boards in the latest revision but it shouldnt effect us. But it seems like it is.

@veritazz did you have a specific sketch that was causing a problem on 1.6.9?

I did a few tests. Actually I have two Arduboys. The yellow one in the pictures above has a new bootloader that I needed to flash. The other one was vanilla with a TeamARG game installed.
The state is the following:

The yellow one refused to be flashed. What I need to do to flash it is holding the UP button then switch on the Ardoboy, then flash (either platformio and recently also the Arduino IDE works)

The red one worked once with the Arduino IDE. After I have flashed my sketch, the behavior is the same as on the yellow

Conclusion is that the bootloader version has no impact.

The sketch that I am using is the game Fatsche. I just pushed some changes to be able to use it easily in the IDE.

The reason why I can flash it now with the Arduino IDE is that I reduced the RAM usage. Seems like anything near 2kb is critical for the normal flash process.
Maybe we should note that it is essential to keep the Hold the UP button feature in the Arduboy library. Only this option allows me to flash again.
If the option is not included that I needed to have the right timing of pressing the reset button + calling avr-dude manually to flash the image. Or use the following sequence:

I think I’ve done almost every version of bringing images to the arduboy. :joy:

F.Y.I. The “Hold the UP button” feature is officially known as the “flashlight” feature. It turns all three of the RGB LEDs on full, so the LED lights up bright white.

It’s intended to provide a bright light for use in the dark, but it also stops the main part of the sketch from executing. This prevents sketches which use a large amount of RAM from corrupting the RAM location that causes problems with uploading new sketches.

Unfortunately, for the 8000 or so Arduboys that have their RGB LED installed incorrectly, the LED will remain unlit while in flashlight mode.

You can exit flashlight mode by pressing the DOWN button, to continue running the sketch. Sorry, not yet. In the next library release. Currently you have to power off to exit the flashliight.

I don’t think there are any plans to remove the flashlight feature.

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Recently some people also try to flash a bootloader after things went wrong. I just thought about it to have a nice adaptor to be able to nicely connect an ISP or an Arduino (used as ISP) to the 6 pins on the back of the Arduboy PCB.

Having this adaptor would enable people to recover from such issues. All things can be done be the Arduino IDE then.

Maybe somebody with enough 3D printer knowledge can craft one an publish how to create them so people can reproduce it. If we find a good design it could be sold in the Arduboy store.

@bateske What do you think?

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Oh that would be amazing.

A “Community Market” would be a nice idea. I’m sure if say, sweatpants or shirts were ever made by someone the store could sell them, and other such items like 3d printed products from the community.

We do also have a #classifieds section, and I believe our current Terms of Service would cover us pretty well if users wanted to try and sell items to each other, within some reason of course. I rarely see forum classifieds working with any great effect, but I did see a group buy offer posted the other day :slight_smile:

It would be fun to try and source a few hours on a few dozen 3d printers if the design is solid, and just do a round of orders that way.