4 layers100 × 71.5 mm
Four layer v2
Kayzerjali/UQ_Magnetometer_Data_Logger
Code for the data logging system of the UQ Magnetometer
49 partsMIT
4 layers100 × 72 mm
Four layer v2
Kayzerjali/UQ_Magnetometer_Data_LoggerCode for the data logging system of the UQ Magnetometer
- Size
- 100 × 72 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 62
- Nets
- 83
- Pads
- 267
- Tracks, vias
- 268, 93
- Pours
- 15
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Sep 2025
- Updated
- 19 Feb 2026
Overview
Four layer v2 is an open-source printed circuit board by Kayzerjali, from the Kayzerjali/UQ_Magnetometer_Data_Logger repository on GitHub, published under the MIT licence. It is a 4-layer board of 100 × 72 mm with 62 parts on 83 nets, routed with 268 tracks and 93 vias.
It is built around the ESP32-S3R8, OPA2192IDGKR and AD4021BRMZ, with the ADA4945-1ACPZ-R2, ADM7171ACPZ-3.3-R7 and ADP7118ARDZ-1.8 among its other parts. Its parts include 8 ICs, 7 connectors and 1 inductor. It belongs with the ESP32 boards of this library.
Main components
12
ESP32-S3R8
QFN-56(7x7)-40℃~+65℃ -74.2dBm 150Mbps 18.5dBm 2.412GHz~2.484GHz 2.4GHz 283mA 3V~3.6V 88mA Bluetooth、WiFi DMA function SPI、USB、UART、I2C、I2S transceiver QFN-56(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
OPA2192IDGKR
VSSOP-8-18V~-2.25V、2.25V~18V -40℃~+125℃ 10MHz 140dB 1mA 2 200nV/℃ 20V/us 2pA 4.5V~36V 5.5nV/√Hz@1kHz 5pA 5uV 65mA EMI filter/RF suppression、Zero drift/automatic zero stabilization Rail-to-Rail Input, Rail-to-Rail Output VSSOP-8 Precision Op Amps ROHSTexas InstrumentsPrecision Op Amps
AD4021BRMZ
MSOP-10-40℃~+125℃ 0.3LSB 1 1.71V~1.89V 100.5dB 1MHz 20 3.1LSB Bipolar input、Bipolar power supply Built-in External SAR SPI Yes MSOP-10 Analog to Digital Converters (ADC) ROHSAnalog DevicesAnalog To Digital Converters (ADCs)
ADA4945-1ACPZ-R2
LFCSP-16(3x3)-40℃~+125℃ 0.1nA/℃ 0.1uV/℃ 1 1.2uA 1.8nV/√Hz@100kHz 10V 10uV 110dB 120dB 145MHz 170mA 20nA 35ns 3V~10V 4mA 600V/us Differential Enable/shutdown function、Single-ended to differential conversion、Integrated ADC driver、Capacitive load driving、Adjustable output common-mode voltage Rail-to-rail output LFCSP-16(3x3) Differential Amplifiers ROHSAnalog DevicesDifferential Amplifiers
ADM7171ACPZ-3.3-R7
LFCSP-8(3x3)-40℃~+125℃ 1 1A 2mA 3.3V 42mV@(500mA) 5uVrms 6.5V 60dB@(100kHz) Fixed Over Current Protection、Thermal shutdown、Enable control、Input under-voltage protection、Adjustable soft-start、Built-in soft-start Positive LFCSP-8(3x3) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAnalog DevicesVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsADP7118ARDZ-1.8
SOIC-8-EP-40℃~+125℃@(Tj) 1 1.8V 11uVrms 200mA 20V 50uA Fixed Positive Under Voltage Lockout、Over Current Protection、Over Temperature Protection、Soft Start、Enable SOIC-8-EP Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAnalog DevicesVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CL21B104KBCNNNC
0805100nF 50V X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
ERA-6AEB4990V
0805-55℃~+155℃ 100V 125mW 499Ω Thin Film Resistor ±0.1% ±25ppm/℃ 0805 Chip Resistor - Surface Mount ROHSPanasonicChip Resistor - Surface MountCL21A106KBYQNNE
080510uF 50V X5R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMTCL21B105KBFNNNE
08051uF 50V X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
PPPC031LFBN-RC
插件,P=2.54mm-40℃~+105℃ 1 2.54mm 250V 3A 3P 8.51mm Gold Phosphor bronze Square Hole Through Hole 插件,P=2.54mm Female Headers ROHSSullins Connector SolutionsFemale HeadersPPPC062LFBN-RC
插件,P=2.54mm-40℃~+105℃ 12P 2 2.54mm 2.54mm 250V 3A 8.51mm Gold Through Hole 插件,P=2.54mm Female Headers ROHSSullins Connector SolutionsFemale Headers
README
README.mdUQ_Magnetometer_Data_Logger
Repository for the data logging system of the UQ Magnetometer. Contains programs and PCB files for the project.
Components
- MCU ESP32-S3-DEVKITC-1U-N8R8
- FDA ADA4945-1ACPZ-R2
- ADC AD4021BRMZ
- LDO ADP7118ARDZ-1.8
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | Rd1, Rd2, Rd3, Rd5, Rup1, Rup2, Rup3, Rup4, Rup5, Rup6 |
| 5 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | Cdc1, Copa1, CssBK1, Cvdd1, Cvio1 |
| 4 | 150 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | Rtspi1, Rtspi2, Rtspi3, Rtspi4 |
| 4 | 499 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | Rf1, Rf2, Rg1, Rg2 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | CinADM1, CoutADM1, Cref1 |
| 2 | 180pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | Crc1, Crc2 |
| 2 | 18k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | Rd4, Rd6 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | Cnr1, CvccBK1 |
| 2 | 680 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | Rrc1, Rrc2 |
| 2 | Conn_Coaxial_Small | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | J6, J7 |
| 1 | 10pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | CdBK1 |
| 1 | 18.2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | RtBK1 |
| 1 | 182k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | RdBK2 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | RdBK1 |
| 1 | 2.2uH | DataLogger:(2.2uH inductor) WE-MAPI_3020 | L1 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | CoutBK1 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | CinBK1 |
| 1 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | Rpu7 |
| 1 | 50k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | Rpg_up1 |
| 1 | AC_in | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J3 |
| 1 | AD4021 | DataLogger:AD4021-BRMZ | U3 |
| 1 | ADA4945-1ACPZ-R2 | DataLogger:ADA4945_1ACPZ_R2 | U1 |
| 1 | ADM7171ACPZ-3.3-R7 | DataLogger:CP-8-21_ADI-L | U9 |
| 1 | ADP 1.8 | DataLogger:ADP7118ARDZ_18 | U4 |
| 1 | DC_in | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J4 |
| 1 | ESP32_S3 | ESP32-S3-DEVKITC-1-N8R8:ESP32-S3-DEVKITC-1-N8R8 | U7 |
| 1 | LT8609SIV_PBF | DataLogger:REG_LT8609SIV_PBF | U5 |
| 1 | MEM2067-02-180-00-A_REVB | DataLogger:(sd_socket) GCT_MEM2067-02-180-00-A_REVB | J1 |
| 1 | OPA2192IDGKR | DataLogger:OPA2192IDGKR | U2 |
| 1 | Power_in | Connector_PinSocket_2.54mm:PinSocket_2x06_P2.54mm_Vertical | J2 |
| 1 | REF50 | DataLogger:REF5050EIDR | U6 |
| 1 | micro_usb_adapter | DataLogger:(micro_usb)-AMPHENOL_10118192-0001LF | J5 |
The 58 most common of 62 parts.
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Questions
How big is the Four layer v2 PCB?
It measures 100 × 72 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Four layer v2 use?
62 parts, built around the ESP32-S3R8, OPA2192IDGKR, AD4021BRMZ and ADA4945-1ACPZ-R2. 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 Four layer v2 KiCad files?
From the Kayzerjali/UQ_Magnetometer_Data_Logger repository on GitHub, at the commit this page was made from: the board is PCB/four_layer_v2/four_layer_v2.kicad_pcb and its schematic PCB/FourLayerPCBv1/AD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Four layer v2 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).