4 layers83.1 × 92.5 mm
4 layers57 × 39 mm
Ecg
Gunethra/ecg- Size
- 57 × 39 mm
- Copper layers
- 4
- Thickness
- 1.2 mm
- Parts
- 37
- Nets
- 67
- Pads
- 170
- Tracks, vias
- 409, 52
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 3 Mar 2024
- Updated
- 24 May 2025
Overview
Ecg is an open-source printed circuit board by Gunethra, from the Gunethra/ecg repository on GitHub. It is a 4-layer board of 57 × 39 mm with 37 parts on 67 nets, routed with 409 tracks and 52 vias.
It is built around the ESP32-S3-PICO-1-N8R2 and TPS7A8101DRBR. Its parts include 12 capacitors, 11 resistors, 9 ICs, 1 switch and 1 inductor. It belongs with the ESP32 boards of this library.
Main components
2
ESP32-S3-PICO-1-N8R2
LGA-56-EP(7x7)LGA-56-EP(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
TPS7A8101DRBR
VSON-8-EP(3x3)-40℃~+125℃@(Tj) 1 100uA 1A 23.5uVrms 500mV@(1A) 6.5V 800mV~6V 80dB@(1kHz) Adjustable Over Current Protection、Over Temperature Protection Positive VSON-8-EP(3x3) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdImages
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R4, R5, R9 |
| 2 | 0 | Resistor_SMD:R_0603_1608Metric | R10, R11 |
| 2 | 1.5 pF | Capacitor_SMD:C_0201_0603Metric | C11, C12 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C7, C10 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C3, C4 |
| 2 | 470n | Capacitor_SMD:C_0603_1608Metric | C8, C9 |
| 2 | ~ | Electrode:TestPoint_Pad_1.0x1.0mm | U7, U8 |
| 2 | ~ | Socket:Socket_THT_MountingHoles | U5, U6 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 2.7 nH | Inductor_SMD:L_0201_0603Metric | L1 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 24.7 | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 3 | CR2032_module:TestPoint_Pad_1.0x1.0mm | BT1 |
| 1 | 3.7 | CR2032_module:TestPoint_Pad_1.0x1.0mm | BT2 |
| 1 | 33k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 416131160802 | Slide:416131160802 | S1 |
| 1 | 434133025816 | Tactile:SMD_025816_WRE | U9 |
| 1 | 499 | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | AD620 | ad620:R_8_ADI-M | U2 |
| 1 | Antenna_Shield | RF_Antenna:Texas_SWRA117D_2.4GHz_Right | AE1 |
| 1 | ESP32-S3-PICO-1-N8R2 | ESP32_S3_PICO_1_N8R2:QFN56_7X7_EXP | U1 |
| 1 | OPA358 | opa358:DCK6-M | U3 |
| 1 | TPS7A8101DRBR | TPS7A8101DRBR:IC_DRV8601DRBT | U4 |
Questions
How big is the Ecg PCB?
It measures 57 × 39 mm and has 4 copper layers, 1.2 mm thick.
What parts does the Ecg use?
37 parts, built around the ESP32-S3-PICO-1-N8R2 and TPS7A8101DRBR. 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 Ecg KiCad files?
From the Gunethra/ecg repository on GitHub, at the commit this page was made from: the board is ecg.kicad_pcb and its schematic ecg.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ecg design in my own project?
Its repository states no licence, so its author keeps all rights: ask Gunethra before reusing the design.
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