ardEEG

ardEEG is an open-source shield for the Arduino UNO R4 that measures biosignals — including EEG (electroencephalography), EMG (electromyography), and ECG (electrocardiography).

What It Does

ardEEG brings biosignal acquisition to the Arduino platform, making it the most accessible and lowest-cost entry point in the PiEEG device family. It connects directly to the Arduino UNO R4 header and uses the ADS1299 analog front-end chip to capture high-quality biosignal data. ardEEG is ideal for students, hobbyists, and educators who want to explore EEG, EMG, and ECG measurement without the complexity or cost of a single-board computer setup. It is also well suited for embedded BCI prototypes and low-power standalone applications.

Key Features:

• Supports EEG, EMG, and ECG measurements
• Connects directly to the Arduino UNO R4 header
• Powered by the ADS1299 analog front-end chip
• Compatible with dry and Ag/AgCl wet electrodes via 2.54 mm pin pitch connectors
• Low power — runs from a small 5V power bank (up to 1,000 mAh, max 1A)

How It Differs from PiEEG:

Comparison: PiEEG vs. ardEEG