SpenceKonde
Problem Installing ATTinyCore on Arduino IDE 2.3.3
Hello,
I am encountering an issue while trying to install the ATTinyCore platform on the latest version of the Arduino IDE (2.3.3). When I click "Install" in the Board Manager, I receive the following error message:
fixed, had forgotten to restart the second server after renewing cert for it and rebooting it to make it pick up the recent kernal updates I ran to keep it up to date (I've seen what happens to linux systems that don't get this treatment - evetually the cert they have to verify SSL against expires, andf you con't uprade them because it can't make an SSL connection because it thinks the SSL server is compromised, and you need to either get wizards involved to correct it, or you blow it away and rebuild. It took me over a month to do that last summer when i accidentally deleted the running apache binary out from under it which kept working until the cert ran out). I lost my main development system while still finishing up a complicated tax issue that's occupied the last 8 months of most ob my coherent thought, coming on the heels of a multiphase sequence of "random" occurrences all of which were maximally disruptive to my specific modes of thought and being.
One of those included loss (failure, not theft) of my main computer, with all the infrastructure to do maintenance on my cloud servers set up on it, leading to along search for the certificate on a backup so tht I could log in, because I had also lost the data that I needed to upload if I had to build th server, the only option if you lose your cert. (that was the earlier outage in the fall). I would have just restored that from my file server, except that the NAS box was shutting down before it could finish boot due to whart turned out to be a defective connector terminal, fixed last week, and problems in the network have now been mostly resolves with the possible exception of the 2.5gbit ethernet adapter at this endpoint.
Hopefully I should be able to log into github again later today, cause the phone is now starting the bootup process, finally. Then, I can start fixing things in the core itself (at present, this is all I can do, I can't commit changes oruse the web interface), otherwise,well, I'd need a new phone to receive the 2FA
And I still haven't paid for my three year old phone completely, using their default no-added-free. It crapped out a year ago, and when it is made to turn on (hard to get it to not boot into recovery sometimes) there's no sound, and if you try to cange the volume, it immediately goes to zero again because it thinks the volume down button is continually pressed. I am so ripshit over this that I vowed to cut my nose off to spite my face. I refuse to buy another one of those fucking things until the one I'm paying for has been paid off normally. It used to be these phones came with the plan, They crapped out in 2 years, and that was okay because you got another with the plan renewal every 2 years. Now, barring real estate and automotive, they're among the most expensive items we own. Like, it's number 2? Oscilloscope (4 channel) is number 1, the computer is cheaper than the phone (and at least my computer was nearing end of usable life anyway due to failing peripherals- it hadn't had working keyboard or touchpad for 2 years, after the third keyboard replacement, the shop said that they had to fight to get that last replacement, because they're out of production. Two months later that keyboard failed too, so it had a keyboard stuck to it, no battery life. Was on it's second SSD, after I had to pay $600 to get all of my pcvb design files recovered from the old SSD two years ago. SSD still works, that one's going in the file server to act as write cache now that I got the 2.5 gbit network between my laptop and the mirrored raid array that I store my buik data on almost working (I think the 2.5gbe network adapter is malfunctioning and dropping connection intermittently, but the speed of data transfers when it works is epic. It's good with 1GBit, but still network bound, with 2.5gbit it should run at the speed of the drives.
Due to the frequency of ssd failures on laptops (the laptop before that one had had 2 motherboard failures, each of which happened to the same chip on the motherboard, the SSD interface, causing the data to be lost and the SSDs to be unusable. So I deciuded to put most important data onto a file server. After having to replace an SSD 6 times in the past 1.5 hardware cycles, can you blame me for this revelation? Or the poetic declaration:
"That which is of value shalt never reside upon a laptop SSD alone, for they are weak and of the Devil. We shell prostrate ourselves before G--gle and by His grace back up our documents in G--gle's Holy Cloud as they are created! We already make monthly sacrifices to G--hub, and ever shall we, for It's way is that of Truth and Light, and while Mighty and Benevolent, it is a God of Development, not of Storage., continually protect our data in their realm of cloud. G--thub's limits were shown me at cost of great treasure. See that six hundred dollars could have been saved had I clicked commit and sync more. But alas I am mortal and stupid, and so had not. Regardless we have not the $pirit to induce Him to securely contain and protect all of our data. There is some which is simply too great in size for us to afford His cost, while other material constitutes secret Heresies which could offend Him or His consorts and must remain unseen. So it is declared and so it shall be done: For now and ever after, the solid state drives, when mounted within a laptop,shall be seen as ephemeral, as that is what they are, so often the hardware fails! We shall procure a NAS enclosure, stocked with drives of high quality, rated for such servers (and of middling capacity, for we have all heard the dark prophecies of raid rebuild failures). Said drives are configured in a RAID array. 2 drives mirrored, and it must communicate with our network with a connection not slower than 1 GBit (later changed to 2,5 GBit as the minimum). Upon securing sufficient treasure, that NAS fortress shall be upgraded to a castle - Visions revealed to me by the true Gods of Data whose names I daren't even allude to have shown the path forward, and that it is revealed within The Sixth Book of RAID...." (end prophetic rambling)
Where was I.... Cellphone prices, yes.... Now, you have to pay for it. People balked at the prices per month for 2 year replacement, (because phone makers have gone berko with cost and features which nobody wants and people don't knotice except by the fact that their new phone seems no faster than their old one. As always, what process tech giveth, programer's taketh away.), so the payment is over like 3-4 years. The phones are still designed to last at most 2, and most struggle to do that in real world conditions. The forces of evil grow stronger every day. Doom approaches. Pray for deliverance! Pray to G--gle! To G--hub! To L--ux! To G-U! To A--L and T--C and I--el! Lest we all be doomed! (er, did I say I ended the prophetic rant earlier? Cancel the earlier one....)
Anyway with that and a few more steps, I should be able to upload to devices again and return to being Spence instead of a ghost. No,you should be able to upload to one device at a time again, all your USB ports are full except the stupid C type ones, remember? both your other USB hubs are in pieces waiting for replacement parts to fix them Er, right, what he said, whatever said that. The parts have shipped though... Aliexpress, should be here any day!
-Spence - sorry for the rant.
Did you buy a nice new keyboard for yourself and was this the test-drive? I am used to see waaaaay more typo's when you rant.
great! looks like it does install now. i just tried it (on Arduino 2.3.4 that recently was released). next steps for the owner is to close relating ssl issues. however, the drivers themselves are not signed by Microsoft and may lead to concerns from some (i'm on windows).
Hobbyist, not programmer here. Could someone spell out the current status please? Is all the licence stuff sorted? Should I reinstall to get the very latest fixes, at least for Tiny85 and 88? Is this true for either my preferred IDE v 1.8.19 and v 2?
Using help from the Arduino Forum experts I’ve successfully programmed my Tiny85 chips and Tiny88 boards, using UNO as ISP, but after many hour still unable to get any of my Tiny88 28-pin chips programmed.
If your current setup can program a ATT85, your setup can program a bare ATT88 chip as well as it works the same.
Are you using these settings to do a "burn bootloader"?
Thanks. I've used that and the Optiboot option without success. Just repeated with those exact (default) settings. using Burn Bootloader gives the errror summary
avrdude: Device signature = 0x1e930a
avrdude: Expected signature for ATtiny88 is 1E 93 11
Full error report below. It's the same as I get with Upload Using Programmer.
Arduino: 1.8.19 (Windows 10), Board: "ATtiny48/88 (No bootloader), Enabled, ATtiny88, 8 MHz (internal), Standard, EEPROM retained, B.O.D. Disabled (saves power), Enabled, Port A (pins 23~26)"
C:\Users\terry\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino18/bin/avrdude -CC:\Users\terry\AppData\Local\Arduino15\packages\ATTinyCore\hardware\avr\1.5.2/avrdude.conf -v -pattiny88 -cstk500v1 -PCOM7 -b19200 -e -Uefuse:w:0xff:m -Uhfuse:w:0b11010111:m -Ulfuse:w:0xE2:m -Uflash:w:C:\Users\terry\AppData\Local\Arduino15\packages\ATTinyCore\hardware\avr\1.5.2/bootloaders/empty/empty_all.hex:i
avrdude: Version 6.3-20201216
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:\Users\terry\AppData\Local\Arduino15\packages\ATTinyCore\hardware\avr\1.5.2/avrdude.conf"
Using Port : COM7
Using Programmer : stk500v1
Overriding Baud Rate : 19200
Setting bit clk period : 5.0
AVR Part : ATtiny88
Chip Erase delay : 15000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 20 4 0 no 64 4 0 3600 3600 0xff 0xff
flash 65 6 64 0 yes 8192 64 128 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : STK500
Description : Atmel STK500 Version 1.x firmware
Hardware Version: 2
Firmware Version: 1.18
Topcard : Unknown
Vtarget : 0.0 V
Varef : 0.0 V
Oscillator : Off
SCK period : 0.1 us
avrdude: AVR device initialized and ready to accept instructions
Error while burning bootloader.
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0x1e930a
avrdude: Expected signature for ATtiny88 is 1E 93 11
Double check chip, or use -F to override this check.
avrdude done. Thank you.
(avrdude: Device signature = 0x1e930a)
That is the device signature of a Atmega88
You don't seem to have a Attiny88. Can you post a closeup picture?
Embarrasing! You're absolutely right. I bought them impulsively from AliExpress thinking they were aTTiny88 chips, 28-pin DILs. After succeeding with the Tiny85 I was looking forward to doing the same with these much more versatile devices ;-(
Thanks for solving the puzzle, on which I wasted a full day.
Hello,
I am encountering an issue while trying to install the ATTinyCore platform on the latest version of the Arduino IDE (2.3.3). When I click "Install" in the Board Manager, I receive the following error message:
I'm facing the same issues. And can't install ATTinyCore on Arduino IDE. I tried to install an old version (1.3.0) from the boards manager and it works fine. But, it does not support ATTiny85 Micronucleus/Digispark, which I use. Once I select any version above 1.3.0, it raises the same error "Failed to install error unknown". Therefore, I am unable to install version 1.5.2, which is weird!
I’m puzzled why you have two versions of the same URL, one secure the other not?
On Fri, 24 Oct 2025 at 18:43, ahmed ibrahim ahmed @.***> wrote:
ahmedibrrahim left a comment (SpenceKonde/ATTinyCore#891) https://github.com/SpenceKonde/ATTinyCore/issues/891#issuecomment-3444235233
Hello,
I am encountering an issue while trying to install the ATTinyCore platform on the latest version of the Arduino IDE (2.3.3). When I click "Install" in the Board Manager, I receive the following error message:
BD7725CF-E487-43C1-986C-F2BAE5CFF710.png (view on web) https://github.com/user-attachments/assets/dd151411-df43-4570-afa1-850237ece5da 2FA8B62A-F1FD-4001-96ED-B009B299AA6A.png (view on web) https://github.com/user-attachments/assets/03a8fb30-fe76-4701-a015-59c69d21c0cf
I'm facing the same issues. And can't install ATTinyCore on Arduino IDE. I tried to install an old version (1.3.0) from the boards manager and it works fine. But, it does not support ATTiny85 Micronucleus/Digispark, which I use. Once I select any version above 1.3.0, it raises the same error "Failed to install error unknown". Therefore, I am unable to install version 1.5.2, which is weird!
— Reply to this email directly, view it on GitHub https://github.com/SpenceKonde/ATTinyCore/issues/891#issuecomment-3444235233, or unsubscribe https://github.com/notifications/unsubscribe-auth/AB2CNAR6JLF7ERGSOPEK3AT3ZJQN5AVCNFSM6AAAAACKENILBCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTINBUGIZTKMRTGM . You are receiving this because you commented.Message ID: @.***>