As a 1st time Arduino user (25 years ago some QuickBasic experience) I am really amazed at the number of different-type controllers a project needs. Maybe I am totally off-track with this design (no experience at all), but untill now, the basics work. I try to make an old preamplifier design reall…

I am having a hard time understand why all the processors. I believe what you want to do can be done with one unit and properly written software without using the delay() instruction. I have seen this done with a 4-bit controller (NEC-1700 series). What speed is a " the 'core' has to be superfast"?

[image] dctrl: It seems only the MEGA is able to have enough memory and speed The MEGA is actually slightly slower than an Uno or Nano. (Same 16MHz clock speed, slightly slower instructions in order to handle the increased range of memory.) the 'core' has to be superfast: this receives enc…

Basically if you are using more than one processor then you are doing it wrong. It is a common beginners mistake to think you need more than one, often this is caused by the lack of understanding of how to program.

what about using a ESP32 ? has the advantage of built in BLE for communication with a smaartphone?

[image] dctrl: Am I totally offtrack here? Yeah. Overly complex due to the several microcontrollers that could be replaced by just one, but more importantly I get the strong impression of seriously shifting requirements as the project evolves, which makes your goal a moving target. Other than…

Thank you for your insight. Superfast is very relative indeed. It does not need to be very fast, it is the display not being able to catch up with encoder turns. I discovered when using a seperate controller for the display, it is able to catch up while not disturbing the volume relays connected t…

[image] dctrl: I discovered when using a seperate controller for the display, it is able to catch up while not disturbing the volume relays connected to the master arduino. Which only goes to show that you are not coding it correctly.

Hi, thank you for your insight. The MEGA is slower indeed, but it has enough memory space to display nice things on the tft, such as a startup screen from progmem, icons, and I have yet to create the user setup pages. " Those are not really "super fast" things, by Arduino standards. (though updat…

Hi grumpy mike. As stated in the title AND text, I'm a first-time C++ user (never saw any programming language before except quickbasic 25 years ago). I KNOW i'm not coding correctly, hence my visit to this forum. But hey, I don't mind people telling me what I already know (as that's obvious havi…

1st time Arduino user: product design involves multiple controllers?

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er_name_not_found March 22, 2022, 11:02pm 2

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1st time Arduino user: product design involves multiple controllers?

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