Bring back the Teensy 3.2 !

XRAD

Well-known member
Have you seen the prices for the Teensy 3.2 leftovers...175 -1000$!...sheesh...I really miss the 5v tolerant pins!!!! Made my build life so easy.... Paul, can you bring it back?? the MK20D processor is 13$ on digikey.... How about a run of 10,000??? Please. I have been pulling them from my old projects for my new ones.

Sometimes, you just create a great product/idea, and there is no true replacement....
 
the MK20D processor is 13$ on digikey.... How about a run of 10,000???
Screenshot 2024-07-16 105429.png

A run of 10,000... when there's less than 500 in stock?
 
Thx for reply. lol...10,000 not for me...for everyone. THX for the link!

jmarsh, look at the positive side of things! Mouser has:

In Stock: 14,829 (as low as 7$ each)​

 
PJRC might not bring back the Teensy 3.2 but definitely need something less powerful and less power hungry then the Teensy 4.0

A Teensy 3.3 may be ?
 
Good point. just yesterday I noticed that the 3.2 was at 18mA and the 4.0 was at 44mA in the same device.
 
Paul, I do not know all the financial,patent, or technical issues regarding the 3.2, but really, PLEASE consider another run of these AWESOME processors! For all the beginners like me, the 5v tolerant pins are so easy to use with SO many projects. They always work perfectly with arduino IDE and your bootloader. They have so many pins for I/O. There is nothing on the market that even comes close! Thank you, XRAD
 
Thx for the link, Angelo. :((n) I already have a stack of 4.0's and 4.1's.........just in case these get terminated, too
 
I'm not a large quantity user, but aside from the power use and the 5v tolerant pins, I have a fondness for the PGA and robust A/D.
I may be naive, and not having a grasp of the logistics, but it surprised me that once you were all tooled up for them, spinning a batch from time to time wouldn't be a big deal if the components are available. You have inventory on the shelf, and storage space. All the one-time engineering work has already been done.

Paul, I don't say any of that to criticize you and Robin's decision, I'm sure there's a bad taste in your mouth over all of it. It is more to support just how loved a product is that you created.
 
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You can actually select which clock speed that should be used for running the Teensy 4.x
and at least in theory minimize the power usage (have not done any tests myself).
The clock can be as low as 24MHz.
 
Small quantities batches means higher unit price. It is not simply the components price. When 3.2 was in production in 1000's unit, or even more, batches, I am sure the uC was not bought at 7$.

At 100 or 200 units batch, we will see comments like "Oh, the price was 20$, now you request 50$. I will not order the parts and prefer to move to 4.0 instead."
 
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Hi everyone, we have started on a version of Teensy 3.2 which will use this longer footprint:
https://oshpark.com/shared_projects/HGzzmZbK - a DIP48 that accepts the Teensy 3.2 module side pins and optional SMT pads. Soldering this up with a T 3.2 requires a jig and hand work and ends up making the controller quite expensive. But we need access to those optional signals, and need 5V tolerant I/O and a hardware reset input. We can't get those with Teensy 4.X. We have enought T 3.2 to meet our customer's need for the rest of this year and our selling our excess with a message elsewhere on this forum. Those sales are being used to fund this new module.

It might seem silly to be designing a new Teensy 3.2-like module when the rest of the world is moving on, but we have a large investment in our larger system and it works very well. We have shipped some low thousands of that system using this adapter board approach. Since we can't get Teensy 3.2 any more but apparently now the components to make them are available (not the case a year ago), we have started on a single board with the DIP48 footprint, plus castellations for direct solder (similar idea to the RP2040 Raspberry Pi Pico module). It will use the PJRC bootloader and have a micro-B USB so it will look and act like a Teensy 3.2 but with more pins and access to the hardware reset (because our system relies on that). We won't call it Teensy 3.2 since we are not PJRC. Again, it will not be a perfect drop-in for the Teensy 3.2 since it has more pins and is a longer board. But since the DIP 28 pins of the Teensy 3.2 are there as part of the DIP 48 larger board, you could just solder in header pins to those only and use it like a 3.2, with extra PCB hanging off the ends. Maybe that would work for some folks whose design has extra space in the right place around the Teensy. This module will of course use the existing superb Teensy 3.2 infrastructure and libraries.

Maybe some other folks would also find such a module useful? We have no delivery schedule yet, no price, and no public documentation (so please don't ask since I don't yet have any answers). We're just getting going and are in no rush (that could change of course). I was here on the forum looking for other information and saw this thread so thought I would jump in with news of what is at the moment admittedly 'vaporware'. I'm curious what interest there might be in this module, since that may advise our initial production plans. I'll try to monitor this thread as my time permits.
 
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