32 channel EEG built from 4 OpenBCI Cyton, 4 WIFI shields & InfluxDB?

Although we are interested in physiololgical sensors for practicing meditation, and also OpenBCI since several years, we do not use OpenBCI. A Fenix 6 paired to a Polar OH1 was enough for practicing breath meditation. This setup was accurate at 12 breath per minute, which is the lowest physiological value for a normal breath rate. …