This device developed is an acquisition board for reading biometric signals from the human body, such as an EEG or EMG.
The board is based on the ADS1299, a 24-bit low-noise analog-to-digital converter developed for applications working with biopotential signals. The board uses a Teensy 4.1 as a DSP microcontroller to perform the tasks of synchronization, parameter configuration, ADC reading, and communication with the host.
The main feature of this equipment is that it has 6 analog signal conditioning channels that are fully configurable by software.
Each channel implements a band-pass filter whose gain and cut-off frequencies can be configured. The band-pass filter is implemented by two independent filters in cascade, one high-pass and one low-pass.
- 1ksps sampling rate
- 6 independent operating channels
- Bandpass configurable filter
- Configurable lower cutoff frequency between 0.5Hz and 50Hz.
- Gonfigurable upper cutoff frequency between 100Hz and 10kHz.
- Configurable channel gain.
- Software-configurable channels
- 24-bit ADC and sampling rate up to 16kHz
- 16-bit accelerometer reading and up to 200g 9DoF
- Real-time reading and data display interface.
| Item | License |
|---|---|
| Hardware | CERN-OHL-S-2.0 |
| Software | GPL-3.0-or-later |
| Firmware | GPL-3.0-or-later |
| Documentation | CC-BY-SA-4.0 |