2 layers180 × 125 mm
Seniordesign
rhit-bouchemj/AnesthesiaSeniorDesign
The Repo for Senior Design project of creating an Open-Source Anesthesia Pump
27 parts
2 layers102 × 45 mm
HELPStat V2
stevfu/eis_capstone1Utilization of Electrochemical Impedance Spectroscopy for the Detection of Drugs
- Size
- 102 × 45 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 87
- Pads
- 206
- Tracks, vias
- 310, 38
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Feb 2025
- Updated
- 31 Jul 2025
Overview
HELPStat V2 is an open-source printed circuit board by stevfu, from the stevfu/eis_capstone repository on GitHub, published under the MIT licence. It is a 2-layer board of 102 × 45 mm with 51 parts on 87 nets, routed with 310 tracks and 38 vias.
It is built around the ESP32-S3-DEVKITC-1-N8R2, AD5941BCPZ-RL7 and AP2112K-3.3TRG1, with the MCP73831T-2ACI/OT-HXY, M20-9990246 and 10118192-0001LF among its other parts. Its parts include 16 capacitors, 5 connectors, 4 resistors, 4 ICs and 3 diodes. It belongs with the ESP32 boards of this library.
Main components
8ESP32-S3-DEVKITC-1-N8R2
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
AD5941BCPZ-RL7
LFCSP-48-40℃~+85℃ 1 1.82V 16 16MHz、32MHz 2.8V~3.6V 400kHz 400kHz 6.5uA 80dB Programmable gain、Multiplexers、Input buffering、Internal reference source、Power-on reset SPI LFCSP-48 Analog Front End (AFE) ROHSAnalog DevicesAnalog Front End (AFE)
AP2112K-3.3TRG1
SOT-25-5-40℃~+85℃@(Ta) 1 250mV@(600mA) 3.3V 50uVrms 55uA 600mA 65dB@(1kHz) 6V Fixed Over Current Protection、Thermal Shutdown、Enable control Positive SOT-25-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsMCP73831T-2ACI/OT-HXY
SOT-23-5LBattery ManagementHXY MOSFET
M20-9990246
插件,P=2.54mm-40℃~+105℃ 1 2.54mm 2.54mm 2P 3A 3mm 6.1mm Black Brass Pin Header Through Hole Tin 插件,P=2.54mm Pin Headers ROHSHarwinPin Headers
10118192-0001LF
SMD-30℃~+80℃ 1 1.8A 100V 5P Black Female Micro-B Surface Mount, Right Angle USB 2.0 SMD USB Connectors ROHSAmphenolUSB Connectors
BAT20JFILM
SOD-3231 Independent 12uA@15V 1A 23V 5A 620mV@1A SOD-323 Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
BSS205NH6327XTSA1
SOT-23-55℃~+150℃@(Tj) 1 N-channel 1.2V@11uA 2.5A 20V 3.2nC@4.5V 419pF@10V 500mW 50mΩ@2.5A,4.5V SOT-23 MOSFETs ROHSInfineon TechnologiesMOSFETs
README
README.mdeis_capstone
Utilization of Electrochemical Impedance Spectroscopy for the Detection of Drugs
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 61300411121 | 61300411121:61300411121 | I2C0, J6, J7, J8, SPI0, UART0 |
| 6 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP5, TP6 |
| 5 | 100n | Capacitor_SMD:C_0603_1608Metric | C18, C19, C20, C21, C22 |
| 5 | 10u | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C6, C17 |
| 4 | 470n | Capacitor_SMD:C_0603_1608Metric | C8, C9, C10, C12 |
| 4 | MOUNT-HOLE2.2 | MountingHole:MountingHole_2.2mm_M2_Pad | H1, H2, H3, H4 |
| 3 | 4k7 | Resistor_SMD:R_0603_1608Metric | R7, R8, R9 |
| 3 | M20-9990246 | M20_9990246:HARWIN_M20-9990246 | J3, J4, J5 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 10118192-0001LF | 10118192_0001LF:AMPHENOL_10118192-0001LF | J1 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | AD5941BCPZ-RL7 | AD5941BCPZ_RL7:QFN50P700X700X80-49N | U4 |
| 1 | AP2112K-3.3TRG1 | AP2112K_3_3TRG1:SOT95P285X140-5N | U3 |
| 1 | BAT20JFILM | BAT20JFILM:SOD-323 | D1 |
| 1 | BSS205NH6327XTSA1 | BSS205NH6327XTSA1:PG-SOT23-3-5_INF | MOSFET1 |
| 1 | ESP32-S3-DEVKITC-1-N8R2 | ESP32-S3-DEVKITC-1-N8R2:XCVR_ESP32-S3-DEVKITC-1-N8R2 | U5 |
| 1 | GRN | LED1212_AndrewCustom:LED_00-R18_OSR | LED2 |
| 1 | LIPO1 | B2B_XH_A:JST_B2B-XH-A | J2 |
| 1 | LOGO | ConduitQ:Radiant Transfer | G*** |
| 1 | MCP73831T-2ACI/OT | MCP73831T_2ACI_OT:SOT-23-5_MC_MCH | U2 |
| 1 | TestPoint_Alt | TestPoint:TestPoint_Pad_2.0x2.0mm | CS0 |
| 1 | YLW | LED1212_AndrewCustom:LED_00-R18_OSR | LED1 |
Questions
How big is the HELPStat V2 PCB?
It measures 102 × 45 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HELPStat V2 use?
51 parts, built around the ESP32-S3-DEVKITC-1-N8R2, AD5941BCPZ-RL7, AP2112K-3.3TRG1 and MCP73831T-2ACI/OT-HXY. 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 HELPStat V2 KiCad files?
From the stevfu/eis_capstone repository on GitHub, at the commit this page was made from: the board is Helpstat/HELPStat_V2.kicad_pcb and its schematic Helpstat/HELPStat_V2-backups/HELPStat_V2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the HELPStat 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).
Similar boards
- 2 layers55.1 × 26 mm
- 4 layers64.2 × 35.5 mm
- 4 layers65 × 56 mm
PCB impedance
BenoitSchick/Fungi
The goal of this project is to measure the impedance of bags containing mycelium in order to observe how mycelium growth influences impedance.
53 parts - 4 layers140.5 × 58.6 mm
- 2 layers19.6 × 33 mm
Implant
GabrielPetrov/hardware-portfolio
Repo containing otherwise offline PCB/Embedded projects
24 parts - 4 layers35.1 × 35 mm
Board 2 New
Triksha-health/Hardware
Contains KiCAD files of all the PCB Boards for the Health Tracker System
76 parts - 4 layers100 × 100 mm
V25Panel
maholli/SAM32
Feather-sized SAMD51 with M4 core serving as UART bridge to WROOM ESP32
211 parts43