SmartKnobController
About the SmartKnobController PCB
SmartKnobController is an open source STM32 PCB design by Larson-Nick, published on GitHub. It is a 2-layer board measuring 110 × 110 mm, with 82 components from 39 distinct parts.
Its main chip is the STM32F411CEU6, from the STM32 family. Other key parts include the CYPD3177-24LQXQT, DRV8313PWPR, TLV76133DCYR, AS5047P-ATSM and A1304ELHLX-T. By type, the board carries 32 capacitors, 23 resistors, 9 test points, 6 ICs, 4 connectors and 2 transistors.
From the project
This folder contains all mechanical and electrical design files for the Smart Knob Controller, created using KiCAD v9.0 and SolidWorks 2024.
This folder contains all mechanical and electrical design files for the Smart Knob Controller, created using KiCAD v9.0 and SolidWorks 2024.
- Schematics (.sch) – Complete circuit design - PCB Layout (.kicadpcb) – Board layout with mounting features - CAD – For mechanical reference and rendering - DATASHEETS - Incomplete list of datasheet PDFs for components - LIBRARIES – Custom components and footprints - MANUFACTURING - All manufacturing files used for production on JLCPCB.com - MEDIA** - Images and videos used for the webpage
Main components on the SmartKnobController
SmartKnobController bill of materials (BOM)
82 components, 39 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CYPD3177-24LQXQT | QFN24_CYPD3177-24LQXQT_INF | U1 |
| 1 | DRV8313PWPR | HTSSOP-28_L9.8-W4.5-P0.65-LS6.6-BL-EP | U2 |
| 1 | TLV76133DCYR | SOT-223-4_L6.5-W3.5-P2.30-LS7.0-TR | U3 |
| 1 | STM32F411CEU6 | STM32F411CEU6 | U4 |
| 1 | AS5047P-ATSM | TSSOP-14_L5.0-W4.4-P0.65-LS6.4-BL | U5 |
| 1 | A1304ELHLX-T | SOT-23-3_L3.0-W1.9-P0.95-LS2.9-BL | U6 |
| 1 | 2N7002 Changjiang Electronics Tech (CJ) | Q_SOT-23 | Q1 |
| 1 | CJL2623 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | Q3 |
| 1 | X322516MLB4SI Yangxing Tech | OSC-SMD_4P-L3.2-W2.5-BL | X2 |
| 1 | C2927039 Connector, USB-TYPE-C-16P | TYPE-C-SMD_HX-TYPE-C-16PIN | J1 |
| 1 | Conn_01x04_Pin | PinHeader_1x04_P2.54mm_Horizontal | J2 |
| 1 | Conn_01x03_Socket | JST_XH_S3B-XH-A_1x03_P2.50mm_Horizontal | J3 |
| 1 | Conn_02x04_Odd_Even | PinHeader_2x04_P2.54mm_Vertical | J4 |
| 2 | KMR223GLFG | SW-SMD_5P-L4.2-W2.8-P1.60-LS4.6-TR | SW1, SW2 |
| 9 | TestPoint | Test Point | TP1, TP2, TP3, TP4, TP5, TP7, TP8, TP9 +1 |
| 1 | C2286 Red Hubei KENTO Elec | D_0603 | D1 |
| 1 | C2297 Green Hubei KENTO Elec | D_0805 | D3 |
| 1 | 120R Sunlord | FB_0603 | FB1 |
| 1 | 4.7NF 4.7nF FH(Guangdong Fenghua Advanced Tech) | C_0402 | C1 |
| 8 | 100NF 100nF Samsung Electro-Mechanics | C_0402 | C2, C3, C4, C5, C16, C17, C19, C28 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 4.7UF 4.7uF Samsung Electro-Mechanics | C_0603 | C6 |
| 2 | 10NF 10nF Samsung Electro-Mechanics | C_0402 | C7, C32 |
| 11 | 1UF 1uF Samsung Electro-Mechanics | C_0402 | C8, C9, C10, C12, C15, C18, C20, C21 +3 |
| 2 | 10PF 10pF Samsung Electro-Mechanics | C_0402 | C11, C13 |
| 1 | TCN4107M035R0100E | CAP-SMD_L7.3-W6.1_TCN4227M025R0100 | C14 |
| 1 | 4.7NF 4.7nF FH(Guangdong Fenghua Advanced Tech) | C_0805 | C23 |
| 4 | 100NF 100nF Samsung Electro-Mechanics | C_0805 | C24, C33, C34, C35 |
| 1 | 2.2UF 2.2uF Samsung Electro-Mechanics | C_0603 | C26 |
| 5 | 10kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R1, R2, R12, R19, R25 |
| 3 | 5.1kΩ UNI-ROYAL(Uniroyal Elec) | R_0603 | R4, R6, R8 |
| 4 | 2.4kΩ UNI-ROYAL(Uniroyal Elec) | R_0603 | R5, R7, R9, R10 |
| 1 | DNP | R_0603 | R11 |
| 2 | 1kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R13, R14 |
| 1 | 10KΩ - 500Ω | MF01A-N-221-A05 | R15 |
| 1 | 120Ω UNI-ROYAL(Uniroyal Elec) | R_0603 | R16 |
| 1 | 1kΩ UNI-ROYAL(Uniroyal Elec) | R_0603 | R18 |
| 1 | 10kΩ UNI-ROYAL(Uniroyal Elec) | R_0603 | R20 |
| 1 | 47Ω UNI-ROYAL(Uniroyal Elec) | R_0402 | R21 |
| 3 | 2.4kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R22, R23, R24 |
SmartKnobController design files
The KiCad project lives in the Larson-Nick/SmartKnobController repository on GitHub; these links point at the commit this page was built from.
SmartKnobController: common questions
What microcontroller does the SmartKnobController use?
The SmartKnobController is built around the STM32F411CEU6, from the STM32 family.
How big is the SmartKnobController PCB?
The SmartKnobController measures 110 × 110 mm, has 2 copper layers and is 1.2 mm thick.
How many components are on the SmartKnobController?
82 components, from 39 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the SmartKnobController design files?
From the Larson-Nick/SmartKnobController repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the SmartKnobController design in my own project?
The repository has no license, so all rights stay with Larson-Nick. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the SmartKnobController without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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