HardLabs

RatEEG

tharaka27·RatEEG·Schematic/ti_based.kicad_pcb

RatEEG PCB layout, top view — open source board by tharaka27

About the RatEEG PCB

RatEEG is an open source PCB design by tharaka27, published on GitHub under the MIT license. It is a 2-layer board measuring 70.5 × 33.7 mm, with 73 components from 18 distinct parts.

Other key parts include the LM2664M6X, TPS72325DBVT, ADS1299-4PAGR, MCP1754-3302E_SOT89 and TLV70025_SOT23-5. By type, the board carries 50 capacitors, 14 resistors, 5 ICs, 3 connectors and 1 diode.

It belongs with the wearables designs in this gallery.

From the project

RatEEG is 4 channel EEG device for iSeizure project

Epilepsy is one of the most common neurological disorders and occurs with an incidence of 68.8/100,000 person-years. The age-adjusted incidence of epilepsy is estimated to be 44/100,000 person-years. Despite the introduction of new antiepileptic drugs in the last decades, one-third of people with epilepsy continue to have seizures despite treatment. However, even when seizures are well controlled, self-reported quality of life is significantly lowered by the anxiety associated with the unpredictable nature of seizures and the consequences therefrom. Some of the difficulties in managing…

RatEEG, from the project README
From the project README

Main components on the RatEEG

LM2664M6XTPS72325DBVTADS1299-4PAGRMCP1754-3302E_SOT89TLV70025_SOT23-5

RatEEG bill of materials (BOM)

73 components, 18 distinct parts.

QtyPartRefs
1
LM2664M6X
IC1
1
TPS72325DBVT
IC2
1
ADS1299-4PAGR
IC3
1
MCP1754-3302E_SOT89
U1
1
TLV70025_SOT23-5
U2
1
Conn_01x02_Female
J1
2
Conn_01x12_Female
J2, J3
1
LED
D1
14
1uF
C1, C6, C8, C12, C35, C38, C39, C40 +6
5
10uF
C2, C3, C30, C33, C37
4
0.1uF
C4, C7, C10, C15
7
2.2uF
C5, C9, C11, C16, C27, C29, C31
12
4.7nF
C13, C14, C17, C18, C19, C20, C21, C22 +4
2
10nF
C23, C32
4
100nF
C34, C36, C42, C49
2
100uF
C46, C48
13
1M
R1, R3, R4, R5, R6, R7, R8, R9 +5
1
R
R2

RatEEG design files

The KiCad project lives in the tharaka27/RatEEG repository on GitHub; these links point at the commit this page was built from.

RatEEG: common questions

How big is the RatEEG PCB?

The RatEEG measures 70.5 × 33.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RatEEG?

73 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the RatEEG design files?

From the tharaka27/RatEEG repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the RatEEG design in my own project?

Yes, under the terms of its MIT license, which tharaka27 chose for the repository.

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