Introducing

NEURO PLAYGROUND

Neuro Playground (NPG) Lite is a multichannel wireless bio-potential signal amplification device designed for recording EMG, ECG, EOG, and EEG. It comes in a compact Adafruit feather form factor and offers Wi-Fi/BLE wireless connectivity. With the addition of daughter boards called Playmates, users can easily enhance the device’s capabilities, enabling the students/researchers/hobbyists to create awesome Human-Computer Interface (HCI) and Brain-Computer Interface (BCI) applications.

Why NPG

NPG Lite is a powerful, low-cost device for accessible neuroscience experimentation. It combines high-quality signal processing, wireless connectivity, and expandability in a compact, open-source design.

Paired with the Playmate ecosystem, it democratizes neurotechnology for students, researchers, and enthusiasts—offering an affordable, reliable, and feature-rich solution for bio-signals, neurofeedback, and HCI/BCI applications.

FEATURES & SPECIFICATIONS

Channels: 3

Power Options: USB Type-C or LiPo battery

Microcontroller: ESP32-C3 (RISC-V) with 4MB Flash

Power Supply: 600mA LDO with filtering

Connectivity: Wi-Fi, Bluetooth, USB

Debugging: JTAG, UART

LEDs: User LED, Charging LED, 6 Addressable RGB LEDs

Buttons: Reset & User Button

BioPotentials: EMG, ECG, EOG, EEG

Compatibility: NPG Playmates & FeatherWing boards

Protection: Built-in Patient & USB ESD Protection

NPG PLAYMATE

Playmates are modular expansion boards designed to enhance the functionality of Neuro Play Ground (NPG) Lite. These add-ons seamlessly integrate with the core system, allowing users to extend their capabilities to create awesome Human-Computer Interface (HCI) & Brain-Computer Interface (BCI).

VibZ

The first Playmate, VibZ, introduces haptic feedback, a buzzer, a QWIIC port for easy sensor integration, an ON/OFF switch, and electrode header pins. With these Playmates, users can customize their setup for specific applications, whether in research, education, or interactive biofeedback experiments. This modular approach ensures flexibility, scalability, and better user experience.

FEATURES & SPECIFICATIONS

Electrode Connection: 2.54mm Dupont header pin

Haptic Feedback: Vibration motor

Audio Feedback: Buzzer

Expansion: QWIIC / STEMMA QT I2C port

Control: ON/OFF switch