Hello! Please help me, I have no idea how to install attinycore by spencekonde, their server seems to be down, I tried some github/sourceforge installs but I never sucseeded and kept getting errors, chatgpt couldn't help me as well. I am using arduino uno R3 as ISP for Attiny85. I need exactly attin…

Can you upload code? I think it's best to stick with 1.4.1 for now.

Bummer, does not work for me anymore, but with a different error than yous. I can select 1.5.2 , but then it fails on downloading the micronucleus tools as they need to come from the azduino.com server which is not working. [image] So the workaround needs another workaround.

[image] hmeijdam: So the workaround needs another workaround. I'm not sure that I would want to use a version higher than 1.4.1 for now and definitely not version 2.0.0. 1.5.2 was a fix for 1.5.0 and there was no 1.5.1. The documentation for it did not make it sound very stable

I could get it to work only by doing the manual installation of 1.5.2 [image] Release 1.5.2 - New pinout images - and Micronucleus works on Windows again... Quick fix to get Micronucleus working on Windows again, because it was broken there, Let me know if this has caused any issues. …

[image] arduigga: I need to turn on B.O.D which I If you have AVR Programmer, you can use that to configure the BOD fuses. After that you may follow the procedures of the attached file to program the ATtiny85 using Arduino as ISP Programmer. ProgrammingATtiny85 (1).zip (224.2 KB)

I believe the workaround described here will still work: [image] New MacBook with M4 Chip "Bad CPU in executable" IDE 2.x Hi @EH4472 . You can work around this with a procedure similar to what I provided above. However, there are some differences since you are …

Is there a way to tell if the core is essentially abandoned permanently, such as by Spence Konde not being available or able any more and other contributors not having enough access to the GitHub project to make repairs or take the project on? What would happen to the core and support for it?

[image] dmjlambert: Is there a way to tell if the core is essentially abandoned permanently You can look around the GitHub repository to check for activity from SpenceKonde. A quick way to check for signs of life is on the GitHub profile page: https://github.com/SpenceKonde [image] Howev…

Thank you everyone for help, I was somehow able to accidentally install ATTinyCore by SpenceKonde 1.5.2 (with this link: http://drazzy.com/package_drazzy.com_index.json ) on Arduino IDE 2.3.8 I was meant to try 1.4.1 but somehow this newer one installed. I have no idea why it worked but it just did …

[image] arduigga: (with this link: http://drazzy.com/package_drazzy.com_index.json ) Do you have any reference to this link? It looks like the one included in the pdf file of #12.

Post #2 from Jim-P is where I took it

Attiny by SpenceKonde

Projects General Guidance

ptillisch March 11, 2026, 11:00pm 14

I believe the workaround described here will still work:

Those are Windows-specific. If you are using a different operating system, let me know and I'll provide adjusted instructions for your system.

The one linked to in #6 was addressing a similar, but different defect.

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Attiny by SpenceKonde

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