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2 layers19 × 14 mmEeg one channel, the printed circuit board in 3D

Eeg one channel

CircuitMonkey/eeg-experiments

Experiments in EEG hardware and software.

Full screenGitHub.kicad_pcb
Size
19 × 14 mm
Copper layers
2
Thickness
1.6 mm
Parts
31
Nets
16
Pads
65
Tracks, vias
104, 33
Pours
1
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
5 Aug 2026
Updated
8 Aug 2026

Overview

Eeg one channel is an open-source printed circuit board by CircuitMonkey, from the CircuitMonkey/eeg-experiments repository on GitHub, published under the MIT licence. It is a 2-layer board of 19 × 14 mm with 31 parts on 16 nets, routed with 104 tracks and 33 vias.

Its parts include 14 resistors, 7 capacitors and 1 IC.

README

README.md

eeg-experiments

Experiments in EEG hardware and software.

EEG Single Channel CHiPz Module

The single channel module for EEG input is designed as a SMT CHiPz module for integration into larger designs. It features an optimized and lower cost version of the [Upside Down Labs BioAmp EXG Pill](https://github.com/upsidedownlabs/bioAmp-exg-pill). For our design, we removed some configuration options such that the user would opt to simply modify the components on the board for the specific purpose such as EEG/EOG/EKG/etc.

EEG One Channel. Rev.A Ortho ViewEEG One Channel. Rev.A Top ViewEEG One Channel. Rev.A Bottom View

Example/Test Carrier for EEG Single Channel CHiPz Module

We made a simple carrier PCB for the single channel EEG sensor CHiPz module so that we could test it as well as its easy use in a prototyping environment. We also made a KiCAD symbol and footprint for the module so that you can integrate the module into your own PCB designs. The CHiPz KiCAD symbol and footprint library is located in separate [ GIT Hub repo ](https://github.com/circuitmonkey/kicad-library). That repo also includes many KiCAD components that we have created or tuned to be superior to the standard KiCAD components.

Carrier PCB for the EEG One Channel. Rev.A -- Ortho View - No module installedCarrier PCB for the EEG One Channel. Rev.A -- Horizontal Module InstalledCarrier PCB for the EEG One Channel. Rev.A -- Vert Module InstalledCarrier PCB for the EEG One Channel. Rev.A -- Top ViewCarrier PCB for the EEG One Channel. Rev.A -- Bottom View

Parts

31
QtyValueFootprintReferences
410KCM_Resistor_Capacitor:R_0603_1608MetricR6, R7, R8, R11
41KCM_Resistor_Capacitor:R_0603_1608MetricR5, R9, R10, R12
41MCM_Resistor_Capacitor:R_0603_1608MetricR1, R2, R13, R14
3GNDCM_Connector_Castelated:cast-2.0-01PCST6, CST7, CST8
20.1uFCM_Resistor_Capacitor:C_0603_1608MetricC1, C5
22.2KCM_Resistor_Capacitor:R_0603_1608MetricR3, R4
10.047uFCM_Resistor_Capacitor:C_0603_1608MetricC7
10.22uFCM_Resistor_Capacitor:C_0603_1608MetricC3
12.2nFCM_Resistor_Capacitor:C_0603_1608MetricC2
14.7uFCM_Resistor_Capacitor:C_0603_1608MetricC8
147uFCM_Resistor_Capacitor:C_0603_1608MetricC4
1IN+CM_Connector_Castelated:cast-2.0-01PCST1
1IN-CM_Connector_Castelated:cast-2.0-01PCST2
1OUTTestPoint:TestPoint_Pad_1.5x1.5mmTP1
1OUTCM_Connector_Castelated:cast-2.0-01PCST4
1REFCM_Connector_Castelated:cast-2.0-01PCST3
1TL074Package_SO:SO-14_3.9x8.65mm_P1.27mmU2
1VccCM_Connector_Castelated:cast-2.0-01PCST5

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Questions

How big is the Eeg one channel PCB?

It measures 19 × 14 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Eeg one channel use?

31 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Eeg one channel KiCad files?

From the CircuitMonkey/eeg-experiments repository on GitHub, at the commit this page was made from: the board is pcb/eeg-one-channel/eeg-one-channel.kicad_pcb and its schematic pcb/eeg-one-channel-carrier/eeg-one-channel-carrier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Eeg one channel design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).