We have here 8 tags about the BEATS. The BEATS would be in principle what we are looking for:
https://petergamma.org/tag/beats
But is the architecture of the BEATS abantoned, because of the wrong choise of a (noisy) single board computer? The OpenBCI Cyton uses a microcontroller instead of a single board computer. What is your opinion about this topic? Write it in the comments below.