[sdiy] Xpander

[MTG]

If I can buy a populated STM32F103 Blue Pill board for $3 then you have 
imagine that the microcontroller is pretty inexpensive. And even if it 
is too much, the knock-off are cheaper.

The Amazing $1 Microcontroller
A new series that explores 21 different microcontrollers — all less than 
$1 — to help familiarize you with all the major ecosystems out there.
https://jaycarlson.net/microcontrollers/

About the STM32F103 clones:
https://www.blaatschaap.be/32f103-comparison-part-1/

GB

On 10/18/2020 10:58 AM, Brian Willoughby wrote:
> Note that the $1-$2 MCUs available today are not used everywhere. There are still $10 and even $20 chips in some devices, depending upon the performance needed, and/or the I/O connections (like scanning a velocity keyboard). I doubt that USB can be done for $2. I've noticed that it's quite popular to add a lot of external chips to a simple $1 MCU in order to solve a task, bringing the total cost much higher, and it makes more sense to just pay more for the MCU to get the features needed with fewer external chips.
>
>
> Maybe a Matrix-18 would be more practical… (kidding)
>
> Brian
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> http://synth-diy.org/mailman/listinfo/synth-diy
>