EEG/ECG data logger for home

Wireless EEG/ECG data logger device with capacitive electrodes - ideal for home researchers or for simple health checking.

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In this project I will present an EEG/ECG data logger with capacitive electrodes. The module will have 6 single ended and 2 differential electrode inputs.
An ADS1299 analog front-end chip will convert the analog signals to digital data. This IC implements the necessary protections from the input( ESD etc.), it contains amplifiers and anti-aliasing filters, so no additional components are needed for usage.
The digital data is fed to the RFM79 trans-receiver module via PIC18F14K22 microcontroller. On the receiver side I used the same RFM79 module, which sends the data to a PIC24FJ64GB002 microcontroller in which the 50Hz noise and various low-pass filters will be implemented. The microcontroller sends the conditioned data to the PC through custom USB HID interface.
In the PC a C# program will graph the data in real time, and it will also save the data for later use.
  • 1 × ADS1299 Data Converters / Analog to Digital Converter ICs (ADCs)
  • 1 × PIC18F24KISO Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
  • 2 × RFM73 Electronic Components / Misc. Electronic Components
  • 1 × MCP6001 Amplifier and Linear ICs / Operational Amplifiers
  • 2 × TC1185 Power Management ICs / Linear Voltage Regulators and LDOs

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