radovanobal/dog-fan-controllerA PWM controller for two Noctua NF-A14 PWM fans, using an ESP32-C3 SuperMini and an external SHT4x temperature and humidity sensor.
Fan Controller is an open-source printed circuit board by radovanobal, from the radovanobal/dog-fan-controller repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 4-layer board of 33 × 96 mm with 53 parts on 33 nets, routed with 227 tracks and 38 vias.
It is built around the SN74LVC2G06DBVR-TP, CL21B104KBCNNNC and RC0805FR-0710KL, with the CL31B106KBHNNNE, C1210C226M3RAC7800 and SPM6530T-150M-HZ among its other parts. Its parts include 18 capacitors, 13 resistors, 7 connectors, 4 ICs and 3 diodes. It belongs with the ESP32 and RISC-V boards of this library.
A PWM controller for two Noctua NF-A14 PWM fans, using an ESP32-C3 SuperMini and an external SHT4x temperature and humidity sensor.
Copyright © 2026 Appicanis, Radovan Obal s.p.
The original hardware design and accompanying design documentation are licensed under CERN-OHL-P-2.0. See LICENSE for the complete licence and NOTICE for attribution, source location and scope.
You may use, modify, manufacture and sell the design, including commercially. You do not have to publish your modifications. When redistributing design materials, retain the applicable notices and provide the licence; when redistributing modified design materials, also identify and date your changes. When supplying physical products, ensure recipients can access the applicable notices, as required by section 4 of the licence. We impose no additional requirement for prominent branding or credit on a product or sales page.
Original design: Appicanis, Radovan Obal s.p.
Source: https://github.com/radovanobal/dog-fan-controller
Third-party materials retain their own licences. Firmware and standalone software require their own explicit licence; the hardware licence above does not automatically apply to them.
Install KiCad 10 with its standard symbol, footprint and 3D model libraries,
clone this repository, then open Fan Controller.kicad_pro in KiCad.
No personal library configuration or custom path variables are required.
The project library tables explicitly reference KiCad's standard libraries using
KICAD10_SYMBOL_DIR and KICAD10_FOOTPRINT_DIR. Custom dependencies are included
in custom_footprints.pretty/, Fan_Controller.pretty/, symbols/ and
3dmodels/, and use ${KIPRJMOD} paths relative to the checkout. The two
root-level symbol libraries are also registered in the project table. Standard
3D models use KiCad's KICAD10_3DMODEL_DIR setting.
When adding a custom part, include its symbol, footprint and any 3D model in the repository and update the project library tables. Avoid absolute paths or libraries registered only in your personal KiCad settings.
JLCPCB fabrication and draft assembly outputs, order settings and review status
are in manufacturing/jlcpcb. Regenerate exports
with python3 tools/prepare_jlcpcb.py using KiCad 10.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2, C4, C5, C13, C18 |
| 4 | MountingHole_2.2mm_M2 | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | 47µF | Capacitor_SMD:C_1210_3225Metric | C1, C8, C9 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C7, C14 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R7, R8 |
| 2 | 10µF | Capacitor_SMD:C_1206_3216Metric | C11, C12 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | 22µF / 25V | Capacitor_SMD:C_1210_3225Metric | C15, C16 |
| 2 | 4-Pin Fan Header | custom_footprints:CONN_SD-47053-001_H10P00_MOL | J2, J3 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R9, R10 |
| 2 | 47R | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | I2C | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J4, J5 |
| 1 | 15µH | custom_footprints:IND_SPM6530T-150M-HZ | L2 |
| 1 | 22µF | Capacitor_SMD:CP_Elec_6.3x5.8 | C3 |
| 1 | 30.1k | Resistor_SMD:R_0805_2012Metric | R13 |
| 1 | 4.7µF | Capacitor_SMD:C_0805_2012Metric | C10 |
| 1 | 4.7µH | custom_footprints:IND_SPM5030T-4R7M-HZ | L1 |
| 1 | 422k | Resistor_SMD:R_0805_2012Metric | R12 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric | R11 |
| 1 | 47µF / 25V Hybrid | Capacitor_SMD:CP_Elec_6.3x5.8 | C19 |
| 1 | 56pF C0G | Capacitor_SMD:C_0805_2012Metric | C17 |
| 1 | AP63201QWU-7 | custom_footprints:SOT95P280X100-6N | U4 |
| 1 | AP63205QWU-7 | custom_footprints:SOT95P280X100-6N | U2 |
| 1 | BZT52C12Q-7-F | Diode_SMD:D_SOD-123 | D3 |
| 1 | ESP32-C3-SuperMini | custom_footprints:ESP32-C3-SuperMini | U1 |
| 1 | Expansion 1 | Connector_JST:JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J6 |
| 1 | Expansion 2 | Connector_JST:JST_PH_B5B-PH-K_1x05_P2.00mm_Vertical | J7 |
| 1 | Fuse Holder | custom_footprints:LITTLEFUSE_178.6764.0001 | F1 |
| 1 | Power Input | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | SMCJ18A | custom_footprints:DIOM7959X262N | D2 |
| 1 | SN74LVC2G06DBVR | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | SQD19P06-60L_GE3 | custom_footprints:TO252AA_SQD19_VIS | Q1 |
| 1 | SS14 | Diode_SMD:D_SMA | D1 |
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It measures 33 × 96 mm and has 4 copper layers, 1.6 mm thick.
53 parts, built around the SN74LVC2G06DBVR-TP, CL21B104KBCNNNC, RC0805FR-0710KL and CL31B106KBHNNNE. 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.
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