| Nr | Hardware | architecture | pros | cons |
| 1 | 4 x ADS1299 Demo kit | ADS1299 | – affordable – stable available – several papers are available (researchgate.net) | – daisy chain software not freely available – not save for humans |
| 2 | HackEEG | ADS1299 | – software available – was affordable | – open source hardware, but unavailable, we suppose that daisy chain software is not implemented |
| 3 | BEATS | ADS1299 | – daisy chain software freely available – Two papers available | – open source hardware, but device is unavailable |
| 4 | PiEEG | ADS1299 | -available – affordable – development of 32 a channel device based on it shoul de possible | – no independent tests available about EEG signal quality – only Python software interface available – no software attached |
| 5 | Device based on TGAM & InfluxDB | TGAM | affordable | Soft – and hardware need to developed |
Remark: we haven’t yet studied the 32 channel EEG devices from mBrainTrain, g.tec medical and of other manufacturers.