4 layers350 × 155 mm
Ventilator
RespiraWorks/Ventilator
Fully-featured ICU ventilator design, optimized for manufacture using commonly available components and free to license.
788 parts169Apache-2.0
2 layers81.4 × 54.9 mm
Bu sürümde (V2.0) tespit edilen kritik şema ve PCB tasarım hataları düzeltilmiştir: 1. STM32F446RE Besleme Kısa Devresi Giderildi: Pin 12 (VSSA) ve Pin 63 (VSS) pinlerinin +3.3V'a olan bağlantısı kesilerek GND…
- Size
- 81.4 × 54.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 225
- Nets
- 148
- Pads
- 577
- Tracks, vias
- 997, 0
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Nov 2020
- Updated
- 16 Oct 2026
Overview
Eeg is an open-source printed circuit board by unaldevelopment, from the unaldevelopment/8-Channel-Wireless-EEG repository on GitHub, published under the MIT licence. It is a 2-layer board of 81.4 × 54.9 mm with 225 parts on 148 nets, routed with 997 tracks and 0 vias.
It is built around the STM32F446RET6 and LD39050PU33R. Its parts include 77 capacitors, 28 resistors, 8 connectors, 7 ICs and 5 diodes. It belongs with the STM32 boards of this library.
Main components
2
STM32F446RET6
LQFP-64(10x10)-40℃~+85℃ 1.7V~3.6V 128KB 12bit 12bit 180MHz 32 Bit 50 512KB ARM Cortex-M4 Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
LD39050PU33R
DFN-6(3x3)-40℃~+125℃@(Tj) 1 200mV@(500mA) 20uA 3.3V 30uVrms 5.5V 500mA 65dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive DFN-6(3x3) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.md8 Channel Wireless EEG
Installation of Kicad on Ubuntu
sudo add-apt-repository --yes ppa:kicad/kicad-5.1-releases
sudo apt update
sudo apt install --install-recommends kicadAfter installation;
cd ~/Desktop
git clone "https://github.com/aliozcanunal/8-Channel-Wireless-EEG"
kicad eeg.pro
V2.0 Donanım Revizyonu ve Hata Düzeltmeleri
Bu sürümde (V2.0) tespit edilen kritik şema ve PCB tasarım hataları düzeltilmiştir:
- STM32F446RE Besleme Kısa Devresi Giderildi: Pin 12 (
VSSA) ve Pin 63 (VSS) pinlerinin+3.3V'a olan bağlantısı kesilerekGNDreferansına bağlandı. - ADS1299 EEG Ortak Referans Hattı (SRB2): Pin 18 (
SRB2) üzerindekiNoConnkaldırılarak/SRB2ağı bağlandı ve PCB yolu çizildi. - ADS1299 BIAS Kararlılığı:
C1kapasitörü10µFyerine1nFyapılarak BIAS amplifikatör osilasyonu önlendi. - RN4678 Bluetooth Modülü:
SW_BTN(Pin 5) veWAKEUP(Pin 9) kontrol pinleri aktif hale getirildi; anten altındaki bakır dolgular temizlenipKeep-Out Zonetanımlandı. - STM32 VCAP_1 Regülatör Kapasitörü:
C42tantal yerine 4.7µF düşük ESR'li seramik (MLCC 0603) olarak güncellendi. - Kristal Yük Kapasitörleri & Ayak Bağlantısı:
Y14-pin kristal bağlantıları ve kılıf uyumlulukları düzeltildi. - Edge.Cuts Sınır Düzeltmesi: PCB sınırındaki açık köşe hatası giderildi.
Detaylı teknik açıklama için REVIZYON_V2.md dosyasını inceleyebilirsiniz.
Parts
225| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 4.7nF | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4, C5, C6, C7, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19 +2 |
| 16 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C41, C52, C53, C56, C57, C59, C61, C64, C68, C70, C71, C72, C73, C74, C75, C78 |
| 16 | 1uF | Capacitor_SMD:C_0603_1608Metric | C40, C48, C49, C50, C54, C58, C63, C66, C76, C77, C79, C106, C107, C108, C111, C112 |
| 10 | 4.99k | ERA-3A:RESC1608X55N | R1, R3, R5, R7, R9, R11, R13, R15, R17, R19 |
| 9 | 10uF | Capacitor_SMD:C_0603_1608Metric | C20, C104, C105, C109, C110, C114, C115, C119, C120 |
| 9 | 4.99K | ERA-3A:RESC1608X55N | R2, R4, R6, R8, R10, R12, R14, R16, R18 |
| 5 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3, D4, D7 |
| 4 | 270 | ERA-3A:RESC1608X55N | R20, R21, R22, R32 |
| 4 | 3.3uH | MLZ2012A3R3WT000:INDC2012X87N | L1, L2, L4, L5 |
| 4 | Conn_01x05_Male | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1, J2, J3, J4 |
| 3 | 10K | ERA-3A:RESC1608X55N | R26, R28, R29 |
| 3 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C113, C116, C118 |
| 2 | 100nF | C0402C104K4RACTU:CAPC1005X55N | C101, C103 |
| 2 | 1uF_X5R_0603 | 06033D105KAT2A:CAPC1608X94N | C100, C102 |
| 2 | 9pF | Capacitor_SMD:C_0603_1608Metric | C80, C81 |
| 2 | Conn_01x10_Male | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J6, J7 |
| 1 | 0.01uF | Capacitor_SMD:C_0603_1608Metric | C117 |
| 1 | 0.1uF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J_Pad1.25x1.05mm_HandSolder | C83 |
| 1 | 1.5nF | Capacitor_SMD:C_0805_2012Metric | C51 |
| 1 | 100uF | Capacitor_SMD:C_0603_1608Metric | C62 |
| 1 | 100uF | TCA1C106M8R:RESC3216X65N | C69 |
| 1 | 10uF | TCA1C106M8R:RESC3216X65N | C65 |
| 1 | 16.00Mhz | Crystal:Crystal_SMD_5032-4Pin_5.0x3.2mm | Y1 |
| 1 | 1M | ERA-6AEB105V:RESC2012X60N | R27 |
| 1 | 1nF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 2.048mhz | ERA-3A:OSCCC500X320X150N | HC7361 |
| 1 | 270 | LED_SMD:LED_0805_2012Metric | R31 |
| 1 | 4.7uF | TCA1C106M8R:RESC3216X65N | C67 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C42 |
| 1 | ADS1299-8CHANNEL | Package_QFP:TQFP-64_10x10mm_P0.5mm | U2 |
| 1 | Conn_01x10 | Connector_PinHeader_1.27mm:PinHeader_1x10_P1.27mm_Vertical | J5 |
| 1 | EVQ-Q2K03W | footprints:EVQ-Q2K03W | SW3 |
| 1 | LD39050PU33R | LD39050PU33R:SON95P300X300X100-7N | U3 |
| 1 | RN4678-V_RM100 | MODULE_RN4678-V:RM100 | U12 |
| 1 | STM32F446RE | Package_QFP:LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | TPS60403DBVT | SOT95P280X145-5N | U4 |
| 1 | TPS72325DBVT | SOT95P280X145-5N | U6 |
| 1 | TPS73225DBVT | SOT95P280X145-5N | U5 |
| 1 | USB_B_Mini | Connector_USB:USB_Micro-B_Molex_47346-0001 | J10 |
The 132 most common of 225 parts.
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Questions
How big is the Eeg PCB?
It measures 81.4 × 54.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Eeg use?
225 parts, built around the STM32F446RET6 and LD39050PU33R. 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 unaldevelopment/8-Channel-Wireless-EEG 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 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).