Freeeeg8-alpha
About the Freeeeg8-alpha PCB
Freeeeg8-alpha is an open source PCB design by neuroidss, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 26 × 26 mm, with 33 components from 29 distinct parts.
Other key parts include the ADS131M08IPBSR and LP5907QMFX-3.3Q1. By type, the board carries 14 connectors, 8 capacitors, 5 resistors, 3 ICs and 1 crystal.
Main components on the Freeeeg8-alpha
Freeeeg8-alpha bill of materials (BOM)
33 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADS131M08IPBSR ADC | LQFP-32_5x5mm_P0.5mm | U1 |
| 1 | LP5907QMFX-3.3Q1 AVDD | SOT-23-5 | U2 |
| 1 | LP5907QMFX-3.3Q1 DVDD | SOT-23-5 | U3 |
| 1 | ECS-2520MVLC-081.92-CN-TR XTAL | Oscillator_SMD_EuroQuartz_XO32-4Pin_3.2x2.5mm_HandSoldering_short | X1 |
| 1 | pogo-pin-d5x10mm-smd AIN0 | pogo_pin_d5x10mm_smd | J1 |
| 1 | pogo-pin-d5x10mm-smd AIN1 | pogo_pin_d5x10mm_smd | J2 |
| 1 | pogo-pin-d5x10mm-smd AIN2 | pogo_pin_d5x10mm_smd | J3 |
| 1 | pogo-pin-d5x10mm-smd AIN3 | pogo_pin_d5x10mm_smd | J4 |
| 1 | pogo-pin-d5x10mm-smd AIN4 | pogo_pin_d5x10mm_smd | J5 |
| 1 | pogo-pin-d5x10mm-smd AIN5 | pogo_pin_d5x10mm_smd | J6 |
| 1 | pogo-pin-d5x10mm-smd AIN6 | pogo_pin_d5x10mm_smd | J7 |
| 1 | pogo-pin-d5x10mm-smd AIN7 | pogo_pin_d5x10mm_smd | J8 |
| 1 | pogo-pin-d5x10mm-smd AINREF | pogo_pin_d5x10mm_smd | J9 |
| 1 | pogo-pin-d5x10mm-smd GND | pogo_pin_d5x10mm_smd | J10 |
| 1 | 53398-0671 STACK_1 | Molex_PicoBlade_53398-0671_1x06-1MP_P1.25mm_Vertical_round_cut | J12 |
| 1 | 53398-0671 STACK_2 | Molex_PicoBlade_53398-0671_1x06-1MP_P1.25mm_Vertical_round_cut | J13 |
| 1 | TSM-107-01-L-SV XIAO_1 | PinSocket_1x07_P2.54mm_Vertical_SMD_Pin1Right | J14 |
| 1 | TSM-107-01-L-SV XIAO_2 | PinSocket_1x07_P2.54mm_Vertical_SMD_Pin1Right | J15 |
| 1 | DNP ~ | FreeEEG8-alpha-title_5mm_SilkScreen | GL1 |
| 1 | DNP ~ | NeuroIDSS-url_5mm_SilkScreen | GL2 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CC0402KRX5R5BB224 220n | C_0402_1005Metric | C1 |
| 1 | CL05B104KO5NNNC 100n | C_0402_1005Metric | C2 |
| 2 | CL05A105KO5NNNC 1u | C_0402_1005Metric | C3, C4 |
| 4 | GRM188R71A225KE15D 2.2u | C_0603_1608Metric | C5, C6, C7, C8 |
| 1 | RC0402JR-070RL XTAL_ON | R_0402_1005Metric | R1 |
| 1 | RC0402JR-070RL SYNC_ON | R_0402_1005Metric | R2 |
| 1 | RC0402JR-070RL GND_ON | R_0402_1005Metric | R3 |
| 1 | RC0402JR-070RL AINREF_POGOPIN_ON | R_0402_1005Metric | R4 |
| 1 | DNP AINREF_STACK_ON | R_0402_1005Metric | R5 |
Freeeeg8-alpha design files
The KiCad project lives in the neuroidss/FreeEEG8-alpha repository on GitHub; these links point at the commit this page was built from.
- Layoutfreeeeg8-alpha.kicad_pcb
- Schematicfreeeeg8-alpha.kicad_sch
Freeeeg8-alpha: common questions
How big is the Freeeeg8-alpha PCB?
The Freeeeg8-alpha measures 26 × 26 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Freeeeg8-alpha?
33 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the Freeeeg8-alpha design files?
From the neuroidss/FreeEEG8-alpha repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Freeeeg8-alpha design in my own project?
Yes, under the terms of its AGPL-3.0 license, which neuroidss chose for the repository.
