2 layers65 × 56 mm
4 layers88 × 58 mm
ECG V-0.2
Doenec/ecg-esp328open source project ecg with esp32 and ad8232
- Size
- 88 × 58 mm
- Copper layers
- 4
- Thickness
- 0.57 mm
- Parts
- 115
- Nets
- 83
- Pads
- 363
- Tracks, vias
- 716, 302
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 3 Nov 2024
- Updated
- 3 Nov 2024
Overview
ECG V-0.2 is an open-source printed circuit board by Doenec, from the Doenec/ecg-esp32 repository on GitHub. It is a 4-layer board of 88 × 58 mm with 115 parts on 83 nets, routed with 716 tracks and 302 vias.
It is built around the ESP32-WROOM-32, MT3540 and AD8232ACPZ-RL, with the AMS1117-3.3, DS1307Z+T&R and TP4056-42-ESOP8 among its other parts. Its parts include 41 resistors, 29 capacitors, 11 diodes, 10 connectors and 6 ICs. It belongs with the ESP32 boards of this library.
Main components
12
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
MT3540
SOT-23-5-40℃~+85℃ 1 1.2MHz 1.5A 2.5V~5.5V 40uA Adjustable Boost Boost Built-in No SOT-23-5 DC-DC Converters ROHSXI'AN Aerosemi TechDC-DC Converters
AD8232ACPZ-RL
LFCSP-20(4x4)-40℃~+85℃ 1.5V 170uA 2V~3.5V 86dB Programmable gain、Output buffer、Internal reference source、Fault detection、ESD protection LFCSP-20(4x4) Analog Front End (AFE) ROHSAnalog DevicesAnalog Front End (AFE)
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
DS1307Z+T&R
SOIC-80℃~+70℃ 1.5mA 300nA 4.5V~5.5V Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output External I2C SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
TP4056-42-ESOP8
ESOP-8-40℃~+85℃ 1 1A 2uA 4.2V 4V~8V Charging IC Lithium Battery Support ESOP-8 Battery Management ROHSTOPPOWERBattery Management
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
0603X106K160NT
060310uF 16V X5R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSGuangdong Fenghua Advanced Tech (FH)Multilayer Ceramic Capacitors MLCC - SMD/SMT0603B334K250NT
060325V 330nF X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSGuangdong Fenghua Advanced Tech (FH)Multilayer Ceramic Capacitors MLCC - SMD/SMT
19-217/BHC-ZL1M2RY/3T
0603-40℃~+85℃ 110mW 120° 2.8V 24.5mcd~28.5mcd 465nm~475nm 468nm 5mA Blue Discrete Diode Water Clear 0603 LED Indication - Discrete ROHSEverlight ElectronicsLED Indication - DiscreteKT-0603R
0603-40℃~+85℃ 1.6mm x 0.8mm square LED 1.8V~2.4V 120° 20mA 300mcd 40mW 615nm~630nm 645nm Discrete Diode Red Water Clear 0603 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete0603B152K500NT
06031.5nF 50V X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSGuangdong Fenghua Advanced Tech (FH)Multilayer Ceramic Capacitors MLCC - SMD/SMT
Parts
115| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C3, C5, C9, C11, C12, C13, C17, C51, C52, C54 |
| 10 | 10K | Resistor_SMD:R_0402_1005Metric | R8, R11, R13, R35, R36, R37, R38, R39, R40, R41 |
| 6 | 10uF | Capacitor_SMD:C_0402_1005Metric | C6, C18, C35, C50, C53, C57 |
| 5 | 10M | Resistor_SMD:R_0402_1005Metric | R18, R23, R27, R28, R34 |
| 5 | 1K | Resistor_SMD:R_0603_1608Metric | R12, R15, R16, R20, R42 |
| 5 | 1uF | Capacitor_SMD:C_0402_1005Metric | C4, C10, C14, C47, C49 |
| 5 | 47K | Resistor_SMD:R_0402_1005Metric | R2, R3, R5, R6, R14 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 1M | Resistor_SMD:R_0402_1005Metric | R1, R19, R22 |
| 3 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 3 | B5819W | Diode_SMD:D_SOD-123 | D1, D5, D6 |
| 2 | 0R | Resistor_SMD:R_0402_1005Metric | R7, R31 |
| 2 | 1.4M | Resistor_SMD:R_0402_1005Metric | R29, R32 |
| 2 | 100K | Resistor_SMD:R_0402_1005Metric | R9, R46 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C21, C56 |
| 2 | 180K | Resistor_SMD:R_0603_1608Metric | R21, R25 |
| 2 | 330nF | Capacitor_SMD:C_0603_1608Metric | C7, C8 |
| 2 | BLED | LED_SMD:LED_0603_1608Metric | D4, D12 |
| 2 | DNP | Resistor_SMD:R_0402_1005Metric | R24, R30 |
| 2 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3, J11 |
| 2 | RLED | LED_SMD:LED_0603_1608Metric | D3, D8 |
| 1 | 1.2K | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 1.5nF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C34 |
| 1 | 150K | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 1nF | Capacitor_SMD:C_0402_1005Metric | C22 |
| 1 | 32.768Khz | Crystal:Crystal_SMD_G8-2Pin_3.2x1.5mm | Y2 |
| 1 | 360K | Resistor_SMD:R_0603_1608Metric | R26 |
| 1 | 4.7uH | Inductor_SMD:L_1008_2520Metric | L1 |
| 1 | AD8232 | Package_CSP:LFCSP-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias | U2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | BAT | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J7 |
| 1 | Battery_Cell | nodemcu:cr1220-2 | BT1 |
| 1 | Battery_Cell | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT2 |
| 1 | DS1307Z+ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U10 |
| 1 | ESP32-WROOM | nodemcu:ESP32-WROOM-Modif | U8 |
| 1 | Fiducial | Fiducial:Fiducial_0.5mm_Mask1mm | FID1 |
| 1 | GLED | LED_SMD:LED_0603_1608Metric | D7 |
| 1 | I2C | nodemcu:OLED_I2C_091 | J9 |
| 1 | IN | Connector_JST:JST_EH_S3B-EH_1x03_P2.50mm_Horizontal | J5 |
| 1 | IN | nodemcu:PJ-320B | J2 |
| 1 | LOGO | nodemcu:bt | G*** |
| 1 | LOGO | nodemcu:hearth6mm | G*** |
| 1 | LOGO | nodemcu:wifi_10mm | G*** |
| 1 | MT3540 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | Micro_SD_Card | nodemcu:microSD | J1 |
| 1 | NEXTION | Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal | J8 |
| 1 | PRG | Button_Switch_SMD:SW_SPST_FSMSM | SW3 |
| 1 | RST | Button_Switch_SMD:SW_SPST_FSMSM | SW2 |
| 1 | SMF05CT1G | Package_TO_SOT_SMD:SOT-363_SC-70-6 | D9 |
| 1 | SRV05-4-P-T7 | Package_TO_SOT_SMD:SOT-23-6 | D10 |
| 1 | SW_ON | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW1 |
| 1 | TP4056 | Package_SO:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm_ThermalVias | U7 |
| 1 | USB_B_Micro | Connectors_USB:USB_Micro-B_Molex-105017-0001 | J6 |
| 1 | VIN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D2 |
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Questions
How big is the ECG V-0.2 PCB?
It measures 88 × 58 mm and has 4 copper layers, 0.57 mm thick.
What parts does the ECG V-0.2 use?
115 parts, built around the ESP32-WROOM-32, MT3540, AD8232ACPZ-RL and AMS1117-3.3. 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 V-0.2 KiCad files?
From the Doenec/ecg-esp32 repository on GitHub, at the commit this page was made from: the board is ECG V-0.2/ECG V-0.2.kicad_pcb and its schematic ECG V-0.2/Cam1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ECG V-0.2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Doenec before reusing the design.