PiEEG is an open source Raspberry Pi shield that measures biosignals such as those used in electroencephalography (EEG), electromyography (EMG), and electrocardiography (ECG). PiEEG is versatile, easy to work with, and compatible with different types of electrodes. Best of all, it was designed to be usable by anyone. To begin measuring biosignals, all you need to do is connect the electrodes and run a python script. Applications include gaming, entertainment, sports, health, meditation, and more.

PiEEG relies on open source software to process biosignals in real time. Our GitHub repo provides open source models that will help you do things like control robots using the EEG signals generated by your mind! This device is intended to help you learn not only about neuroscience but also about signal processing, filters, and machine learning.

PiEEG Demo

You can use PiEEG for a wide variety of applications, including smart-home control, gaming, robotics, virtual-keyboard input, or even DIY polygraph experiments!

Features & Specifications

• Compatible with Raspberry Pi 3 or 4
• 8 channels for connecting wet or dry electrodes
• Data transfer via SPI protocol with a frequency from 250 SPS to 16 kSPS and a resolution of 24 bits per channel
• Programmable signal gain: 1, 2, 4, 6, 8, 12, 24
• Ability to measure impedance
• Common-Mode Rejection Ratio CMRR - 120
• Internal noise - 0.4 μV
• External noise - 0.8 μV
• Signal-to-noise ratio (SNR) - 130 dB
• LEDs for power indication and ADS1299 connection indication
• 3 free pins for connecting external objects (ground and Raspberry Pi channel)
• 33 Pins from the Raspberry Pi GPIO40 can be used for various tasks, like connecting external devices
• Easy programming with the provided open source software for reading and processing data in Python, C, and C++

PiEEG Pinout Diagram

Click to enlarge

Open Source

• License: GNU General Public License (GPL) v3.0
• Schematics
• Layouts and other project files
• Firmware and software

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