After reading in this forum and elsewhere, I suppose asking about information on availability is a moot point? Nobody has these, and they are out-of-stock everywhere.
Are you asking to see if anyone has some they are willing to send to you?
Hi Paul, no, I'm wanting to buy the Zero, and I see there is large demand. But I also see lots of out-of-stock notices on various sites and in forums for much of 2023. So that begs the question, are these available or do I look at other options?
Thanks for clarifying!
Try other options is what I would do.
Do you mean this one?
Thanks for the Ebay link, I just ordered one from that link and will see what happens.
There are substantial numbers of clones of the Arduino-M0 (like an Arduino-Zero, but without the seldom-used debug chip.)
Some of the more reputable dealers:
Seeeduino Cortex-M0+ - Seeed Studio (out-of-stock, though.)
Yes, but I was specifically looking to debug code. Thanks for the alternative references.
Beyond the clones, is it relatively common for open microcontrollers, sensors and related, to be frequently out of stock. I'm trying to get a feel for the landscape since I'm new to it, but a seasoned software engineer.
(assuming that was a question.)
We appear to just be coming out of serious "supply chain problems" that were blamed on Covid/etc. Many chips from many vendors just completely dried up, and the manufacturers were saying "chips will be available in 18 months. Maybe." It was bad. PJRC discontinued their entire line of Teensy-3 products due to chip shortages.
It didn't have anything to do with "open", although presumably smaller users (chips per year) aren't near the top of the list when it comes to getting scarce chips.
It's getting better.
I believe that the current bottleneck is the AT32UC3A4256HHB "EDBG" chip that provides debugger support. MicrochipDirect claims there will be some in late February. I believe that this is a somewhat obsolete product line (the whole AT32 line, not just the EDBG chip.) Newer debug-capable boards are using ARM chips instead.
Note that many of the clone boards include a JTAG header where you can attach a standard-ish SWD debugger, like an Atmel-ICE, PicKit4, or SNAP, and probably other vendors' debuggers (depending on the debug environment.)
There are also the Microchip development boards that include debugging support, like the SAMD21 Curiosity Nano and the ATSAMD21 Xplained Pro eval kit that claim to be available now.
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