This page explains how to physically connect your JNEEG shield, Jetson Nano, and electrodes before starting a recording session.

Step 1 — Attach the JNEEG Shield

Align the JNEEG shield with the 40-pin GPIO header on your Jetson Nano and press it firmly into place. Make sure all pins are seated correctly before powering on.

Step 2 — Connect the Electrodes

JNEEG uses three types of electrode connections:

• Channel Electrodes (1–8)
  Connect 8 EEG electrodes to channels 1 through 8. These are placed on the scalp according to the 10-20 system and capture the EEG signal.
• Reference Electrode
  Attach a clip electrode to one ear. This provides a stable voltage reference for all 8 channels.
• Bias Electrode
  Attach a second clip electrode to the other ear. This actively cancels electromagnetic interference from the signal, reducing noise.

Refer to the connection diagram image above for the exact pin positions of each electrode on the JNEEG connector header.

Step 3 — Power On

Connect your power bank to the Jetson Nano.