Knout
About the Knout PCB
Knout is an open source STM32 PCB design by Kreyl, published on GitHub. It is a 4-layer board measuring 118 × 21.4 mm, with 87 components from 40 distinct parts.
Its main chip is the STM32L433CCT6, from the STM32 family. By type, the board carries 32 capacitors, 16 resistors, 6 transistors, 4 test points, 4 inductors and 2 diodes.
Knout bill of materials (BOM)
87 components, 40 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | IRF9317TRPBF IRF9317 | SO8_150MIL | Q1 |
| 2 | 2N7002 | SOT23-3 | Q2, Q3 |
| 1 | IRLML9303 | SOT23-3 | Q4 |
| 1 | BC848 | SOT23-3 | Q6 |
| 1 | IRLML6401 | SOT23-3 | Q7 |
| 1 | 0896BM15A0001E BALUN868JOHANSON | BALUN_JOHANSON868 | BLN1 |
| 1 | MCP1700T-3302E/TT MCP1700 | SOT23-3A | DA1 |
| 1 | TP4056 | SO8_150MIL | DA2 |
| 1 | M74VHC1GT125DT1G MC74VHC1 | SOT23-5 | DA3 |
| 1 | STM32L433CCT6 STM32L433Cx | LQFP48 | DD1 |
| 1 | CC1101 | QFN20 | DD2 |
| 1 | LSM6DS3 | 14_3x2d5_p0d5 | DD3 |
| 1 | Fuse0R | RES_0603_FUSE | F1 |
| 4 | HOLE_METALLED | Hole2d2_out3d5mm | HOLE1, HOLE2, HOLE3, HOLE4 |
| 1 | BUTTON_H | BTN_IT1198 | SW1 |
| 4 | TESTPOINT | TESTPOINT_1MM | TP1, TP2, TP3, TP4 |
| 1 | CONN_6 | PLS-6 | XL1 |
| 2 | CONN_1 | PLS-1Rnd | XL2, XL7 |
| 1 | USB_MICRO_6H | USBmicro_MOLEX_1050170001 | XL3 |
| 3 | CONN_1 | PLS-1Square | XL4, XL5, XL8 |
Show 20 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CONN_3 | SLD_3_2D5 | XL6 |
| 1 | 12MHz | 03225C4 | XTAL1 |
| 1 | 27MHz | 03225C4 | XTAL2 |
| 2 | PMEG2020 | SOD323 | D1, D2 |
| 1 | * | IND_0402 | L1 |
| 3 | BLM15AG102SN1 | IND_0402 | L2, L3, L4 |
| 1 | 100pF | CAP_0402 | C1 |
| 2 | * | CAP_0402 | C2, C3 |
| 4 | 18pF | CAP_0603_Silks | C4, C5, C6, C7 |
| 15 | 0.1u | CAP_0603_Silks | C8, C10, C11, C12, C13, C14, C15, C16 +7 |
| 4 | 1u | CAP_0603_Silks | C9, C23, C26, C27 |
| 4 | CL10A106MQ8NNNC 10u | CAP_0603_Silks | C18, C28, C29, C30 |
| 2 | 10n | CAP_0603_Silks | C24, C25 |
| 2 | 1k | RES_0603 | R1, R3 |
| 2 | 56k | RES_0603 | R2, R4 |
| 4 | 10k | RES_0603 | R5, R15, R18, R20 |
| 5 | 100k | RES_0603 | R6, R11, R12, R13, R21 |
| 1 | 0R2 | RES_1206 | R14 |
| 1 | 1.2k | RES_0603 | R16 |
| 1 | 1M | RES_0603 | R19 |
Knout design files
The KiCad project lives in the Kreyl/Tzydyan repository on GitHub; these links point at the commit this page was built from.
- LayoutKnout/Knout_hw/Knout.kicad_pcb
- SchematicKnout/Knout_hw/Knout.kicad_sch
Knout: common questions
What microcontroller does the Knout use?
The Knout is built around the STM32L433CCT6, from the STM32 family.
How big is the Knout PCB?
The Knout measures 118 × 21.4 mm, has 4 copper layers and is 1 mm thick.
How many components are on the Knout?
87 components, from 40 distinct parts. The full bill of materials is listed on this page.
Where can I download the Knout design files?
From the Kreyl/Tzydyan repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Knout design in my own project?
The repository has no license, so all rights stay with Kreyl. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Knout 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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