How to replace arduino to improve reliability?

Question

Arduino

There is a prototype of a certain device. Since the "prototype" is assembled on what was and where there is more experience - on the Arduino Nano controller from Aliexpress. Everything works, everything is fine. There were problems with pickups (servos, encoders and a lot of other things inside the device), but in the end we managed to fix everything.

Now the idea arose to develop and make a small series of similar devices. In this connection, the question posed in the title arose.

Controllers on the sea market. And I, by and large, worked only with arduino, and I don’t know what pros / cons the transition to other controllers can have and what problems can arise?

Ideally, I would like something relatively similar, but more reliable, more stable, resistant to influences (noise, vibration, humidity, EM interference, etc.). Learning a new development environment or language is not a problem. But I really would not want to switch to assembler, because I had thoroughly forgotten it.

The main tasks are real-time operation: polling sensors, data exchange with a computer (via USB), drive control. The main cycle is repeated at a frequency of 30-50 Hz.

Can someone share their experience?

Or maybe I underestimate the arduino? Maybe there are high-quality boards that are more expensive, but more reliable and easier to additionally protect them than to change the architecture?

In general, I would like to talk with a person who has experience in developing electronic devices. Consult, check your own conclusions. I'm willing to pay for a consultation. If you want to help - write to [email protected], or give your contacts. I will be very grateful.

Sincerely, Daniel

Answer 1

The heart of the Arduino controller is the widespread Atmega328 controller, which is used in many places, including medical equipment.
So it will be more reliable and cheaper in terms of production to develop a board for a specific device, taking into account all kinds of filters and protections. You can leave the old firmware if everything is debugged and the watchdog is turned on.

Answer 2

shield. it's something else .. it turns out it happens