4 layers95.5 × 91 mm
Brain PCB
oudehm/seniorDesignPCB
Editable KiCad projects for the brain, light, power, and pump boards.
86 parts
2 layers138 × 85 mm
Pump PCB
oudehm/seniorDesignPCBEditable KiCad projects for the brain, light, power, and pump boards.
- Size
- 138 × 85 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 28
- Pads
- 250
- Tracks, vias
- 220, 88
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 3 Jun 2026
- Updated
- 28 Sep 2026
Overview
Pump PCB is an open-source printed circuit board by oudehm, from the oudehm/seniorDesignPCB repository on GitHub. It is a 2-layer board of 138 × 85 mm with 52 parts on 28 nets, routed with 220 tracks and 88 vias.
It is built around the TC4420CPA, MFR-25FBF52-10K and MFR-25FBF52-100R, with the 1N4001-E3/54, CSD18540Q5B and EEUFM1E101 among its other parts. Its parts include 15 resistors, 11 capacitors, 7 connectors, 5 ICs and 5 diodes.
Main components
9
TC4420CPA
PDIP-80℃~+150℃ 1 25ns 25ns 4.5V~18V 450uA 6A 6A MOSFET PDIP-8 Gate Drivers ROHSMicrochip TechnologyGate Drivers
MFR-25FBF52-10K
插件,D2.4xL6.3mm-55℃~+155℃ 10kΩ 250mW Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.3mm Through Hole Resistors ROHSYAGEOThrough Hole Resistors
MFR-25FBF52-100R
插件,D2.4xL6.3mm-55℃~+155℃ 100Ω 250mW Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.3mm Through Hole Resistors ROHSYAGEOThrough Hole Resistors
1N4001-E3/54
DO-41-50℃~+150℃ 1 Independent 1.1V@1A 1A 30A 50V 5uA DO-41 Diodes - General Purpose ROHSVishay IntertechnologyDiodes - General Purpose
CSD18540Q5B
VSON-8(5x6)-55℃~+175℃ 1 N-channel 1.9V 2.6mΩ 205A 20pF 3.8W 4.23nF 41nC@10V 60V 808pF N-Channel VSON-8(5x6) MOSFETs ROHSTexas InstrumentsMOSFETs
EEUFM1E101
插件,D6.3xL11.2mm-40℃~+105℃ 100uF 11.2mm 25V 6.3mm ±20% 插件,D6.3xL11.2mm Aluminum Electrolytic Capacitors - Leaded ROHSPanasonicAluminum Electrolytic Capacitors - Leaded
B6B-XH-A(LF)(SN)
插件,P=2.5mm-25℃~+85℃ 1 17.4mm 1x6P 2.5mm 250V 3A 5.75mm 6 6P 7mm Brass K Pin PA66 Through Hole Tin UL94V-0 White XH 插件,P=2.5mm Wire To Board Connector ROHSJSTWire To Board Connector
B2B-XH-A(LF)(SN)
插件,P=2.5mm-25℃~+85℃ 1 1x2P 2 2.5mm 250V 2P 3A 5.75mm 7.4mm 7mm Brass K Pin PA66 Through Hole Tin UL94V-0 White XH 插件,P=2.5mm Wire To Board Connector ROHSJSTWire To Board Connector
B3B-XH-A(LF)(SN)
插件,P=2.5mm-25℃~+85℃ 1 1x3P 2.5mm 250V 3 3A 3P 5.75mm 7mm 9.9mm Brass K Pin PA66 Through Hole Tin UL94V-0 White XH 插件,P=2.5mm Wire To Board Connector ROHSJSTWire To Board Connector
README
README.mdSenior Design PCBs
Editable KiCad projects for the brain, light, power, and pump boards.
Board previews
3D renders from the KiCad designs. Parts without available 3D models may not appear.
Brain board
The main STM32 controller connects the environmental sensors and display, and provides control signals for the lights, dosing pumps, fans, and cooler.
Light board
Four MOSFET channels switch the blue, red, near-infrared, and white grow lights using PWM signals from the brain board.
Power board
Distributes the 12 V supply through fused branches and generates 5 V and 3.3 V rails for the system. It also includes the cooler switching circuit.
Pump board
Five MOSFET driver channels control the Micro, Grow, Bloom, pH-up, and pH-down dosing pumps, with flyback diodes for the pump loads.
Open the designs
- Install KiCad 10.0.3 or newer with the standard symbol, footprint, and 3D model libraries.
- Clone this repository or download and extract the entire ZIP, keeping the folder structure intact.
- In KiCad, open the project you want:
brain_PCB/brain_PCB.kicad_prolight_PCB/light_PCB.kicad_propower_PCB/power_PCB.kicad_propump_PCB/pump_PCB.kicad_pro
- Open its schematic or PCB from the KiCad project manager.
Custom symbols, footprints, library tables, design rules, and the referenced local USB 3D model are included. Local libraries use ${KIPRJMOD} paths so they work wherever you extract the repository. The USB model is a simplified representation.
Manufacturing outputs, review reports, backups, and personal editor settings are excluded. Generate fabrication files from the projects when needed.
Some power-board 3D models (the 6-pin and 10-pin Molex Micro-Fit connectors and Littelfuse NANO2 fuse) were unavailable in the KiCad 10.0.3 libraries used for verification. Their schematic symbols and PCB footprints are included in the designs; these parts may be absent from the 3D view.
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R13, R14, R15, R16, R17, R20, R21, R22, R23, R24 |
| 5 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5 |
| 5 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R8, R12, R18, R19 |
| 5 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4, D5 |
| 5 | 1uF 25V | Capacitor_SMD:C_0603_1608Metric | C6, C7, C8, C9, C10 |
| 5 | CSD18540Q5B | PumpPower:CSD18540Q5B_TI | M1, M2, M3, M4, M5 |
| 5 | TC4420CPA | Package_DIP:DIP-8_W7.62mm | U1, U2, U3, U4, U5 |
| 4 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 1 | 100uF 25V | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C11 |
| 1 | CONTROL INPUT | Connector_JST:JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | J1 |
| 1 | FLORA_BLOOM | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J4 |
| 1 | FLORA_GROW | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3 |
| 1 | FLORA_MICRO | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J5 |
| 1 | PH_DOWN | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J7 |
| 1 | PH_UP | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J6 |
| 1 | POWER INPUT | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J2 |
Questions
How big is the Pump PCB PCB?
It measures 138 × 85 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pump PCB use?
52 parts, built around the TC4420CPA, MFR-25FBF52-10K, MFR-25FBF52-100R and 1N4001-E3/54. 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 Pump PCB KiCad files?
From the oudehm/seniorDesignPCB repository on GitHub, at the commit this page was made from: the board is pump_PCB/pump_PCB.kicad_pcb and its schematic brain_PCB/brain_PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pump PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask oudehm before reusing the design.
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