4 layers187 × 352.1 mm
2 layers119.5 × 87.5 mm
Daughterboard
Ibrahimk298/BudgetEISFiles for the "Open-source impedance spectroscopy for in-incubator bio-monitoring" Project
- Size
- 119.5 × 87.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 63
- Pads
- 182
- Tracks, vias
- 172, 2
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 May 2026
- Updated
- 22 Jun 2026
Overview
Daughterboard is an open-source printed circuit board by Ibrahimk298, from the Ibrahimk298/BudgetEIS repository on GitHub. It is a 2-layer board of 119.5 × 87.5 mm with 37 parts on 63 nets, routed with 172 tracks and 2 vias.
It is built around the ESP32-DEVKITC-32E, TSR 1-2450 and 74HC4052, with the 0679L5000-05 and BYG20J among its other parts. Its parts include 11 resistors, 6 connectors, 5 capacitors, 3 ICs and 2 diodes. It belongs with the ESP32 boards of this library.
Main components
5
ESP32-DEVKITC-32E
-- ModulesEspressif SystemsModules
TSR 1-2450
SIP,11.6x7.5mm-40℃~+85℃ 10.2mm 11.6mm 1A 2200uF 300uA 50mVp-p 5V 7.5mm 7V~36V 850kHz 94% Short Circuit Protection、Automatic fault recovery ±1% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power Modules
74HC4052
SOP-16-40℃~+85℃ 10ns 115Ω 2 3V~9V 40MHz 4:1 SOP-16 Analog Switches, Multiplexers ROHSWuxi I-core ElecAnalog Switches, Multiplexers
0679L5000-05
SMD,6.1x2.5mm-55℃~+125℃ 125V 2.54mm 2.54mm 5.3 50A、300A 5A 6.1mm Surface Mount Fuse SMD,6.1x2.5mm Disposable fuses ROHSBel FuseDisposable Fuses
BYG20J
SMAFast Recovery / High Efficiency DiodesLGE
README
README.mdBudgetEIS
Files for the "Open-source impedance spectroscopy for in-incubator bio-monitoring" Project
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 100n | Capacitor_SMD:C_1206_3216Metric | C2, C3, C5 |
| 3 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | Clock0, Clock1, Clock2 |
| 2 | 10k | Resistor_SMD:R_1206_3216Metric | R1, R2 |
| 2 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1, C4 |
| 2 | 15k | Resistor_SMD:R_1206_3216Metric | R4, R9 |
| 2 | 3.3k | Resistor_SMD:R_1206_3216Metric | R6, R7 |
| 2 | 4.7k | Resistor_SMD:R_1206_3216Metric | R10, R11 |
| 2 | 8.2k | Resistor_SMD:R_1206_3216Metric | R3, R8 |
| 1 | 0679L5000-05 | 0679L5000-05:FUSC6125X279N | F1 |
| 1 | 12V Battery Screw Terminal | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J7 |
| 1 | 22k | Resistor_SMD:R_1206_3216Metric | R5 |
| 1 | 74HC4052 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U2 |
| 1 | BYG20J | Diode_SMD:D_SMA-SMB_Universal_Handsoldering | D2 |
| 1 | Conn_01x02_Socket | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x05_Socket | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J2 |
| 1 | Conn_01x07_Socket | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | J4 |
| 1 | D_Schottky | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | ESP32-DEVKITC-32E | ESP32-DEVKITC-32E:MODULE_ESP32-DEVKITC-32E | U3 |
| 1 | LOGO | Birdpic:Birdpic | G*** |
| 1 | MicroSD Reader | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J8 |
| 1 | Phantom Connector | Connector_PinHeader_2.54mm:PinHeader_2x01_P2.54mm_Vertical | Z |
| 1 | TSR_1-2450 | Conv:Converter Breakout Board | U1 |
| 1 | USB_A | Connector_USB:USB_A_Molex_67643_Horizontal | J6 |
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Questions
How big is the Daughterboard PCB?
It measures 119.5 × 87.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Daughterboard use?
37 parts, built around the ESP32-DEVKITC-32E, TSR 1-2450, 74HC4052 and 0679L5000-05. 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 Daughterboard KiCad files?
From the Ibrahimk298/BudgetEIS repository on GitHub, at the commit this page was made from: the board is KiCAD Schematics/Daughterboard/Daughterboard.kicad_pcb and its schematic KiCAD Schematics/Daughterboard/Daughterboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Daughterboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask Ibrahimk298 before reusing the design.