Want to get started with the Ganglion Board? Head over to the Ganglion Tutorial page!

Watch the Ganglion Biosensing Tutorial Here.

See the YouTube video of live-streamed EEG data using Ganglion.

The OpenBCI Ganglion is a high-quality, affordable bio-sensing device, compatible with OpenBCI's free open-source software. On the input side, there are 4 high-impedance differential inputs, a driven ground (DRL), a positive voltage supply (Vdd), and a negative voltage supply (Vss). The inputs can be used as individual differential inputs for measuring EMG or ECG, or they can be individually connected to a reference electrode for measuring EEG. Data is sampled at 200Hz on each of the 4 channels.

We are using Simblee for our on-board microcontroller and wireless connection. Simblee is RF Digital’s next generation Arduino-compatible radio module. The new Simblee provides user programmable flash, 29 GPIO pins, and the ability to update software over the air (OTA). Every Ganglion will be pre-programmed with versatile firmware so you can get started sensing your body right out of the box. We will also break-out up to 16 of the GPIOs for you to hack with.

Ganglion Board Technical Specifications

• Power with 3.3V to 6V DC battery ONLY
• Current Draw: 14mA when idle, 15mA connected and streaming data
• Simblee BLE Radio module (Arduino Compatible)
• MCP3912 Analog Front End
• LIS2DH 3 axis Accelerometer
• Board Dimensions 2.41” x 2.41” (octagon has 1” edges)
• Mount holes are 3/16” ID, 0.8” x 2.166” on center
• Switches to manually connect/disconnect inputs to the REF pin
• SD card storage not supported - see Cyton board if saving data to SD card is desired
• Note that the Ganglion has a bandpass filter which cuts out any frequency below 0.3 Hz. If that is a concern, order the Cyton 8-channel board