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If you want to digitize brainwaves and electroencephalograph (EEG) data, while interfacing with other Arduino hardware and software, this is the Arduino shield for you!
HackEEG is an affordable, high-performance, fully open source TI ADS1299 Arduino shield ideally suited for digitizing biosignals like EEG, EMG, and EKG. If you want to read your brainwaves, do brain-computer interfacing, or build high-performance lab instruments for neuroscience or biology, HackEEG is for you! We’ve spent the last few years partnering with major research institutions and pharmaceutical companies in the US and Europe and now we want to bring HackEEG to you!
HackEEG shield - angled
This shield is a field-proven, high-performance, open-source lab instrument. All hardware, drivers, and Python client software are completely open source and easily modified. HackEEG is ideally suited for neuroscience biosignals applications – EEG, EKG, EMG, and more.
HackEEG allows you to access the entire range of the TI ADS1299 EEG system-on-a-chip‘s features and performance. The Arduino drivers and Python client software allow complete access to the ADS1299 registers, and can read 8 channels of 24-bit ADC data at the maximum rate of the chip, 16,000 samples per second.
On-board instrumentation power supplies can be configured for 2.5 V to -2.5 V or 5 V to 0 V. Single-ended and differential modes are both possible with P and N inputs available on the HackEEG’s electrode connector.
Up to four boards can be stacked on one Arduino Due for 8, 16, 24, or 32 channels.
Since this is an Arduino shield, you can stack it with existing shields, or add hardware of your own design. For example, we have users who added analog preamplifiers and custom image digitization synchronization hardware on their own custom shields.
This is an actual lab instrument being used to do science in many research and pharmaceutical labs. It has high-resolution, high-bandwidth data acquisition capabilities with very low noise characteristics; even though it’s only $495.00, HackEEG matches the performance capabilities of closed-source amplifiers costing many thousands of dollars, and it can’t be beat for openness and programmability.
HackEEG has a wired interface so can be used directly connected to a laptop or desktop computer to do high-speed capture of biosignals. With the addition of a Raspberry Pi 4, it can send data wirelessly via Wi-Fi.
HackEEG’s Python client software can stream data via the standard neuroscience software communication protocol Lab Streaming Layer either on a single laptop computer or via Wi-Fi. This means you can stream HackEEG directly to your favorite neuroscience software or Matlab running on your laptop or remote computers, record data streams, and integrate HackEEG data with other data streams.
Using our fork of OpenBCI, you can stream HackEEG to OpenBCI and visualize it there. (We hope to get our changes merged to mainline.)
HackEEG is being successfully used for neuroscience research by these organizations:
|HackEEG||OpenBCI Cyton+Daisy||Emotiv EPOC Flex||Compumedics Neuroscan Grael LT|
|Open Source?||Hardware + Software||Hardware + Software||No||No|
|EEG Channels||8, 16, 24, 32||8, 16||32||32|
|ADC resolution||24 bits||24 bits||22 bits||22 bits|
|Samples per second||4,000 (32 channels) - 16,000 (8 channels)||125 (Bluetooth); 1000 (WiFi)||125||2,048|
|Hardware Price||$495-$2,090||$500 - $950||$2,100||$5,000|
|Can stack with other Arduino shields?||Yes||No||No||No|
|Interfaces||USB 2.0 HS, WiFi (via Raspberry Pi 4)||Bluetooth, WiFi||Bluetooth||Ethernet|
|Raw EEG data access||Yes||Yes||$55-$99/month||$100/month|
|Use as lab instrument?||Yes||via Bluetooth or WiFi||No||No|
|Lab Streaming Layer||Yes||Yes||No||No|
All hardware, drivers, and software are open source and available on GitHub:
In some of the photos, the HackEEG DIN 42-802 electrode connector board has nine connectors: eight inputs, one ground. The production connector board will have ten DIN 42-802 connectors: eight inputs, one reference, one ground. The videos were shot with a variant of the connector board that had the reference electrode connector placed on the back of the board.
Although HackEEG has some of the features of a medical device, it does NOT have any certifications (FDA, CE, IEC, etc.) and is NOT officially approved for medical or diagnostic use. It is your responsibility to ensure your safety when using the device. Furthermore, you should never power the device from a non-isolated power source.
This is not a device made for consumer home use. The internal electronics are exposed during normal operation to facilitate easy access by developers and professionals. As such, you must be aware of the hazards of operating exposed electronics, and are familiar with standard anti-static procedures for handling bare electrical components, or be prepared to make your own case.
There is no patient isolation circuitry on the device, so you will need to be sure to operate the HackEEG and all connected devices from battery power.
Produced by Starcat in Seattle, WA.
Sold and shipped by Crowd Supply.
Includes one HackEEG, a ribbon cable, and an electrode connector.
Includes one HackEEG, a ribbon cable, an electrode connector, Arduino Due, ten silver chloride EEG electrodes, two ounces of Ten20 conductive paste, and four ounces of NuPrep prep gel.
Includes 4 x HackEEG, 4 x ribbon cable, 4 x electrode connector, 1 x Arduino Due, 40 x silver chloride EEG electrode, 4 x two ounces Ten20 conductive paste, 4 x four ounces NuPrep prep gel.
Seattle, WA · starcat.io
Electronics R&D company specializing in open source hardware and high performance biosignals acquisition equipment; creator of the HackEEG shield successfully launched on Crowd Supply in 2020