Design Specifications
The design of the BCI Telemeter must meet the following specifications:
- Able to record signals with amplitude 1-10 uV with ability to distinguish modulation down to 300 nV
- Telemetry to PC for 8 ECoG channels in either raw (2000 Hz) or processed (20 Hz) modes
- Each of the 8 channels chosen from one of eight groups of 4 electrodes with reference chosen from one of four electrodes
- Bidirectional RF (radio frequency) link for system configuration, control, and data telemetry
- Low-noise electronics offering high Signal-to-Noise Ratio (SNR) and Common Mode Rejection Ratio (CMRR)
- Low-power, rechargeable battery-operated
- Variable RF data rates (and power consumption) of up to 500 kHz
- One week of typical use between recharge cycles
- Transmit signals at least 50 feet
- MSP430 Microcontroller
- TI CC1101 Transceiver
- Cost < $5,000