Open source EEG/ECG/EMG
This is an open source project for recording high quality electrophysiological data using an ADS129n compatible front-end. These chips support 4 (ADS1294), 6 (ADS1296) and 8 (ADS1298, ADS1299) channels for measurement with 24-bit precision (and if you need even more channels, you can daisy-chain multiple chips). The ADS communicates using a serial peripheral interface (SPI) link. In this design, an Arduino-compatible microcontroller translates between SPI and a Bluetooth or USB Serial Port Connection. Software in the Matlab and Processing languages allows a computer to record these serial port signals. The connection between the computer and the Arduino should be electrically isolated – either via a wireless bluetooth module (the JY-MCU sells for $8) or an electrically isolated USB connection (e.g. using an ADUM4160, $11).
One nice feature of the ADS129n is that they provide 24-bit precision. This allows a single hardware design to be used for very different applications (spanning EEG to ECG and EMG).
For More Detail: Open source EEG/ECG/EMG
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