freeeeg128
m9h
Open-hardware 128-channel EEG acquisition system — design audit, firmware rewrite roadmap, Pi Zero 2W host stack, and synthesis paper
Components (34)
| Reference | Value | Description |
|---|---|---|
| U1 | LSM6DS3 | |
| U2 | REF2025 | |
| U6,U8,U22 | LP5907 | |
| U7 | FXO-SM7_OSC-SMD7050_short | |
| U15 | ISO7341c-iso7341c | |
| U16 | ADUM1402BRWZ | |
| U17 | ADuM3160 | |
| U18 | STM32H743ZITx | |
| U19 | SN6505B | |
| U21 | 473521001 | |
| U101-U116 | ADS131M08IRSN | |
| C1-C3,C20,C21,C25,C35-C45,C47,C49,C50,C52,C54-C56,C59,C60,C62,C63,C69 | 100n | |
| C4,C6,C7,C9,C10,C12,C13,C15,C22,C24,C27,C29,C32,C34,C46,C48,C57,C61,C77,C79,C80,C82,C83,C85,C86,C88,C89,C91,C92,C94,C95,C97,C98,C100,C101,C103 | 1u | |
| C5,C8,C11,C14,C23,C28,C33,C78,C81,C84,C87,C90,C93,C96,C99,C102 | 220nF | |
| C16-C19,C53,C58,C75,C76 | 2.2u | |
| C51 | 4.7u | |
| C64,C66 | CL1 | |
| C65,C67 | CL2 | |
| C68,C70 | 10u | |
| D1,D2 | D_Schottky | |
| J1,J2 | Conn_02x02_Odd_Even | |
| J14-J28,J100,J101,J104,J105 | Conn_01x02 | |
| J81,J84 | Conn_02x03_Odd_Even | |
| J99,J103 | USB_B_Micro | |
| J201-J208 | Conn_02x20_Odd_Even | |
| J301-J303 | Conn_02x04_Odd_Even | |
| R84,R85 | 4k7 | |
| R109-R112 | 0 | |
| R113-R116 | 24 | |
| R117 | R_EXT | |
| SW1,SW2 | SW_Push | |
| T1 | 750315371 | |
| Y1 | 32768Hz | |
| Y2 | 16MHz |