4 layers100 × 30 mm
Nrst tracks only
vexpaer/vexpaers_heart
Open-source Holter ECG recorder hardware: ADS1294R, STM32WB55, microSD, BLE and USB-Pogo dock
167 partsCERN-OHL-S-2.0
4 layers45 × 45 mm
ECG12 Portable2
stefanielinear/ai4ee-pcbAutonomous AI Implementation of Electronic Circuit Design Collections
- Size
- 45 × 45 mm
- Copper layers
- 4
- Thickness
- 1 mm
- Parts
- 130
- Nets
- 103
- Pads
- 409
- Tracks, vias
- 939, 178
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Sep 2026
- Updated
- 7 Sep 2026
Overview
ECG12 Portable2 is an open-source printed circuit board by stefanielinear, from the stefanielinear/ai4ee-pcb repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 45 × 45 mm with 130 parts on 103 nets, routed with 939 tracks and 178 vias.
It is built around the MDBT42Q-512KV2, TPS7A2030PDBVR-TP and ADS1298IPAG, with the BQ24074RGTR, RT0402BRD07100KL and TPD1E10B06DYAR among its other parts. Its parts include 41 resistors, 37 capacitors, 24 diodes, 5 ICs and 3 connectors. It belongs with the nRF52 and nRF5x boards of this library.
Main components
12
MDBT42Q-512KV2
QFN-41加密功能、Mesh组网 QFN-41 Bluetooth Modules ROHSRAYTACBluetooth Modules
TPS7A2030PDBVR-TP
SOT-23-5-40℃~+85℃ 1 200uV@(300mA) 2uA 300mA 3V 5.5V 75dB@(1kHz) Fixed Over Current Protection、Enable、Thermal Shutdown Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICUncategorised
ADS1298IPAG
TQFP-64(10x10)-40℃~+85℃ 1.94MHz~2.25MHz、2.048MHz 112dB 2.4V 2.7V~5.25V 24 32kHz 32kHz 35ppm/℃ 5ppm/℃ SPI TQFP-64(10x10) Analog Front End (AFE) ROHSTexas InstrumentsAnalog Front End (AFE)
BQ24074RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1 1.5A 4.2V 4.35V~10.2V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
RT0402BRD07100KL
0402-55℃~+155℃ 100kΩ 50V 62.5mW Thin Film Resistor ±0.1% ±25ppm/℃ 0402 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface Mount
TPD1E10B06DYAR
SOT-5X3-40℃~+125℃ 1 100nA 12pF 14V 5.5V 6A@8/20us 6V 90W@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 SOT-5X3 ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD And Surge Protection (TVS/ESD)
BAV199,215-JSM
SOT-23-65℃~+150℃ 1 Pair Series Connection 140mA 1V@10mA 250mW 3us 4A 5nA@75V 85V SOT-23 Switching Diodes ROHSJSMSEMISwitching Diodes
RC0402FR-0710KL
UncategorisedUnknown maker
GRM155R61A105KE15D
040210V 1uF X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTRC0402FR-071ML
UncategorisedUnknown maker
BAT54H,115-JSM
SOD-3231 Independent 200mA 2uA@25V 30V 600mA 800mV@100mA SOD-323 Schottky Diodes ROHSJSMSEMISchottky Diodes
BM04B-SRSS-TB(LF)(SN)
SMD,P=1mm-25℃~+85℃ 1 1A 1mm 1x4P 3.6mm 4 4.25mm 4P 50V 6mm Auxiliary Solder Pin Copper alloy PA SR Surface Mount,Vertical Tin UL94V-0 White SMD,P=1mm Wire To Board Connector ROHSJSTWire To Board Connector
README
README.mdai4ee-pcb
A collection of PCB projects that are automatically designed and generated by AI.
All projects are designed in KiCad. This repository hosts PCB projects produced by an AI agent (LLM toolchain) end to end — from requirements specification and part selection, through schematic entry, layout and routing, design review, to fabrication file export. Each sub-project lives in its own directory and can be opened directly in KiCad; it ships with the design sources, design documentation, and a fabrication package.
Sub-projects
| Sub-project | Description | Status | Model / tokens |
|---|---|---|---|
| ECG12_Portable | Portable 12-lead ECG acquisition board (engineering sample): KiCad 10, 45 × 45 mm 4-layer board, 110 purchased components, 14 test points, 6 double-sided fiducials, Rev B | Routed (native ERC / DRC: 0 violations, 0 unconnected), prototype validation pending | GPT-6 High, ~580k tokens |
License
⚠️ Each sub-project is an engineering sample and does not represent medical-device certification. For projects that interface with the human body (e.g., ECG), safety and compliance must be assessed separately per the documentation in the sub-project.
Parts
130| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 100k | ECG12:Resistor_SMD_R_0402_1005Metric | R1, R2, R3, R4, R5, R10, R11, R12, R13, R14, R15, R16, R17, R18, R22, R23 +4 |
| 13 | TPD1E10B06 | ECG12:Diode_SMD_D_SOD-523 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D21, D22, D23 |
| 10 | 100n | ECG12:Capacitor_SMD_C_0402_1005Metric | C10, C11, C12, C13, C15, C16, C22, C23, C26, C29 |
| 9 | BAV199 | ECG12:Package_TO_SOT_SMD_SOT-23 | D11, D12, D13, D14, D15, D16, D17, D18, D19 |
| 8 | 220p | ECG12:Capacitor_SMD_C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C8, C9 |
| 6 | 10k | ECG12:Resistor_SMD_R_0402_1005Metric | R25, R26, R27, R31, R40, R41 |
| 6 | FIDUCIAL | ECG12:Fiducial_Fiducial_1mm_Mask2mm | FID1, FID2, FID3, FID4, FID5, FID6 |
| 5 | 1u | ECG12:Capacitor_SMD_C_0402_1005Metric | C14, C17, C19, C20, C24 |
| 5 | 4.7u | ECG12:Capacitor_SMD_C_0603_1608Metric | C31, C34, C35, C36, C37 |
| 3 | 1M | ECG12:Resistor_SMD_R_0402_1005Metric | R24, R32, R33 |
| 3 | 22u | ECG12:Capacitor_SMD_C_0805_2012Metric | C18, C32, C33 |
| 3 | 33 | ECG12:Resistor_SMD_R_0402_1005Metric | R28, R29, R30 |
| 2 | 10u | ECG12:Capacitor_SMD_C_0603_1608Metric | C21, C28 |
| 2 | 499k | ECG12:Resistor_SMD_R_0603_1608Metric | R19, R20 |
| 2 | 5.1k | ECG12:Resistor_SMD_R_0402_1005Metric | R35, R36 |
| 2 | TPS7A2030PDBVR | ECG12:Package_TO_SOT_SMD_SOT-23-5 | U4, U5 |
| 1 | 1.5n | ECG12:Capacitor_SMD_C_0603_1608Metric | C27 |
| 1 | 100 | ECG12:Resistor_SMD_R_0402_1005Metric | R21 |
| 1 | 100p | ECG12:Capacitor_SMD_C_0402_1005Metric | C25 |
| 1 | 10n | ECG12:Capacitor_SMD_C_0402_1005Metric | C30 |
| 1 | 1k | ECG12:Resistor_SMD_R_0402_1005Metric | R34 |
| 1 | 200p | ECG12:Capacitor_SMD_C_0402_1005Metric | C1 |
| 1 | 68.1k | ECG12:Resistor_SMD_R_0402_1005Metric | R39 |
| 1 | 7.87k | ECG12:Resistor_SMD_R_0402_1005Metric | R37 |
| 1 | 8.66k | ECG12:Resistor_SMD_R_0402_1005Metric | R38 |
| 1 | ADS1298IPAG | ECG12:Package_QFP_TQFP-64_10x10mm_P0.5mm | U1 |
| 1 | AFE_CLK | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP8 |
| 1 | AVDD | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP11 |
| 1 | BAT54H | ECG12:Diode_SMD_D_SOD-123F | D24 |
| 1 | BATTERY_NTC | ECG12:Connector_JST_JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J3 |
| 1 | BQ24074RGTR | ECG12:Package_DFN_QFN_VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U3 |
| 1 | DVDD | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP1 |
| 1 | ELECTRODES | ECG12:Connector_JST_JST_SH_BM10B-SRSS-TB_1x10-1MP_P1.00mm_Vertical | J1 |
| 1 | GND | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP2 |
| 1 | GREEN | ECG12:LED_SMD_LED_0603_1608Metric | D20 |
| 1 | MCU_RESET | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP5 |
| 1 | MDBT42Q-512KV2 | ECG12:RF_Module_Raytac_MDBT42Q | U2 |
| 1 | RLD_OUT | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP14 |
| 1 | RLD_REF | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP13 |
| 1 | SWDCLK | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP3 |
| 1 | SWDIO | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP4 |
| 1 | UART_RX | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP7 |
| 1 | UART_TX | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP6 |
| 1 | USB-C_CHARGE | ECG12:Connector_USB_USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J2 |
| 1 | VBAT | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP9 |
| 1 | VREF | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP12 |
| 1 | VSYS | ECG12:TestPoint_TestPoint_Pad_D1.0mm | TP10 |
Questions
How big is the ECG12 Portable2 PCB?
It measures 45 × 45 mm and has 4 copper layers, 1 mm thick.
What parts does the ECG12 Portable2 use?
130 parts, built around the MDBT42Q-512KV2, TPS7A2030PDBVR-TP, ADS1298IPAG and BQ24074RGTR. 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 ECG12 Portable2 KiCad files?
From the stefanielinear/ai4ee-pcb repository on GitHub, at the commit this page was made from: the board is ECG12_Portable/ECG12_Portable2.kicad_pcb and its schematic ECG12_Portable/AFE.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ECG12 Portable2 design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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