2 layers148 × 84.5 mm
Panel daisy
ohmtech-rdi/eurorack-blocks
Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust
259 parts410
2 layers86.2 × 39.5 mm
Eeg
x37v/eeg-ecgDIY EEG/ECG
- Size
- 86.2 × 39.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 30
- Pads
- 117
- Tracks, vias
- 199, 2
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 24 Sep 2017
- Updated
- 24 Sep 2017
Overview
Eeg is an open-source printed circuit board by x37v, from the x37v/eeg-ecg repository on GitHub. It is a 2-layer board of 86.2 × 39.5 mm with 47 parts on 30 nets, routed with 199 tracks and 2 vias.
It is built around the TL072. Its parts include 19 capacitors, 17 resistors, 4 connectors and 3 ICs.
Main components
1README
README.mdDIY EEG/ECG
Layout of circuit from DIY EEG and ECG instructable. I added a power header and some decoupling caps.
Schematic/PCB use KiCad.
oshpark project untested so far.
BOM
Caps
- 5 220n C1,C3,C4,C5,C8
- 7 100n C6,C12,C13,C14,C15,C18,C19
- 1 25n C7
- 1 10n C11
- 4 10u C2,C9,C16,C17 electrolytic
- 1 1u C10 electrolytic
Resistors:
- 1 560R R1
- 2 22k R2,R10
- 2 12R R3,R11
- 2 220R R4,R14
- 1 47k R5
- 1 220K R6
- 2 180k R7,R8
- 2 100k R9,R15
- 1 200R R12
- 1 1M R13
Semi:
- 1 AD620AN U1
- 1 TL072 U2
- 1 TL074 U3
note original project used 2x 084 op amps.. you can use 08x series in place of these..
Other:
- 1 1k POT P4
- 2 bead R16,R17 optional
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100n | Capacitors_ThroughHole:C_Rect_L7.0mm_W3.5mm_P5.00mm | C6, C12, C13, C14, C15, C18, C19 |
| 5 | 220n | Capacitors_ThroughHole:C_Rect_L7.0mm_W3.5mm_P5.00mm | C1, C3, C4, C5, C8 |
| 4 | 10u | Capacitors_ThroughHole:CP_Radial_D7.5mm_P2.50mm | C2, C9, C16, C17 |
| 4 | MountingHole_3.2mm_M3 | Mounting_Holes:MountingHole_3.2mm_M3 | REF1, REF2, REF3, REF4 |
| 2 | 12R | xnorman:Resistor_Horizontal_RM10mm-xnorman | R3, R11 |
| 2 | 220R | xnorman:Resistor_Horizontal_RM10mm-xnorman | R4, R14 |
| 2 | 22k | xnorman:Resistor_Horizontal_RM10mm-xnorman | R2, R10 |
| 2 | bead | xnorman:Resistor_Horizontal_RM10mm-xnorman | R16, R17 |
| 1 | 100K | xnorman:Resistor_Horizontal_RM10mm-xnorman | R9 |
| 1 | 100k | xnorman:Resistor_Horizontal_RM10mm-xnorman | R15 |
| 1 | 10n | Capacitors_ThroughHole:C_Rect_L7.0mm_W3.5mm_P5.00mm | C11 |
| 1 | 180K | xnorman:Resistor_Horizontal_RM10mm-xnorman | R8 |
| 1 | 180k | xnorman:Resistor_Horizontal_RM10mm-xnorman | R7 |
| 1 | 1M | xnorman:Resistor_Horizontal_RM10mm-xnorman | R13 |
| 1 | 1k POT | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P4 |
| 1 | 1u | Capacitors_ThroughHole:CP_Radial_D7.5mm_P2.50mm | C10 |
| 1 | 200R | xnorman:Resistor_Horizontal_RM10mm-xnorman | R12 |
| 1 | 220K | xnorman:Resistor_Horizontal_RM10mm-xnorman | R6 |
| 1 | 25n | Capacitors_ThroughHole:C_Rect_L7.0mm_W3.5mm_P5.00mm | C7 |
| 1 | 47k | xnorman:Resistor_Horizontal_RM10mm-xnorman | R5 |
| 1 | 560R | xnorman:Resistor_Horizontal_RM10mm-xnorman | R1 |
| 1 | AD620 | Housings_DIP:DIP-8_W7.62mm_LongPads | U1 |
| 1 | Out | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P3 |
| 1 | TL072 | Housings_DIP:DIP-8_W7.62mm_LongPads | U2 |
| 1 | TL074 | Housings_DIP:DIP-14_W7.62mm_LongPads | U3 |
| 1 | inputs 2+gnd | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | P1 |
| 1 | power -9..9 | mta-156:MTA-156-4 | P2 |
Questions
How big is the Eeg PCB?
It measures 86.2 × 39.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Eeg use?
47 parts, built around the TL072. 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 KiCad files?
From the x37v/eeg-ecg repository on GitHub, at the commit this page was made from: the board is eeg.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Eeg design in my own project?
Its repository states no licence, so its author keeps all rights: ask x37v before reusing the design.
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