Suggestions for MCU Choice

[2fourK]

Hi :waving_hand:, 

I am designing a midi controller. I want test out using an STM30 MCU, I was wondering if anyone could suggest dev board/ processor?

I don't want or need wireless communication (wifi and Bluetooth)

I want to run a lot of linier potentiometers/ fader / lingering encoders. Using usb C

In whish list for final product I want to have USB C throughout for data, 

My primary design constraint is that I want final production units to cost no more then $100.

So I want to find right MCU that is cost effective for fader inputs with out bells and whistles.

Thanks for you help,

Jim

[FBL]

Hi @2fourK 

I recommend taking a look at How to write your question to maximize your chance... - STMicroelectronics Community

First, you can refer to the STM32H7RS line with bootflash. Here where you can find the software and hardware tools available:

• Nucleo board: NUCLEO-H7S3L8
• Discovery kit: STM32H7S78-DK
• Dedicated software package: STM32CubeH7RS
• X-CUBE-TOUCHGFX board support package in TouchGFX Designer
• Expansion packages such as X-CUBE-AWS-H7S, X-CUBE-AZURE-H7S, X-CUBE-AZRT-H7RS

For more information:

• Press release: https://newsroom.st.com/media-center/press-item.html/p4615.html
• Blog article: https://blog.st.com/stm32h7r-stm32h7s/
• Website: www.st.com/stm32h7rs
• Youtube playlist: https://www.youtube.com/playlist?list=PLnMKNibPkDnEEBenkOkcJTWLfW1ep4r4s

The STM32H5 line is another excellent option, offering a balance of performance and cost-effectiveness. Here you can find some more details: STM32H5 Discovery kit accelerates building secure,... - STMicroelectronics Community

[Andrew Neil]

Welcome to the forum.

Do you have experience with embedded microcontroller & electronics development?

It seems your basic requirements are:

• low-cost
• "lots" of analogue inputs (A2D?)
• USB

Clarifications required:

• how many is "lots" ?
• USB - Device or Host ?

You can search for devices here:

https://www.st.com/en/microcontrollers-microprocessors/stm32-mainstream-mcus/products.html 

and/or using these tools:

https://www.st.com/en/development-tools/st-mcu-finder-pc.html

https://www.st.com/en/development-tools/stm32-finder.html

[Andrew Neil]

Not really sure that H7 qualifies as "without bells & whistles" ... ?