Kyber
lowdrant·kyber·hw/KyberBoard/KyberBoard.kicad_pcb
About the Kyber PCB
Kyber is an open source STM32 PCB design by lowdrant, published on GitHub under the AGPL-3.0 license. It is a 4-layer board measuring 60.7 × 27.2 mm, with 63 components from 33 distinct parts.
Its main chip is the STM32L051K8T6, from the STM32 family. Other key parts include the VNHD7008AY, AZ1117IH-3.3TRG1 and MMA8452QT. By type, the board carries 18 capacitors, 17 resistors, 14 diodes, 5 transistors, 4 ICs and 3 connectors.
It belongs with the power & battery, dev boards & breakouts and sensors designs in this gallery.
From the project
Extending/Retracting Lightsaber CAD/FW/EDA
Major concerns are - falling below the solenoid turn-on voltage, although I haven't really settled on a solenoid - throwing off motor control
Current resolution: use ST's VNHD7008AY eval board example design. It seems to work fairly well

Main components on the Kyber
Kyber bill of materials (BOM)
63 components, 33 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32L051K8T6 | LQFP-32_7x7mm_P0.8mm | U1 |
| 1 | VNHD7008AY | ST_PowerSSO-36_SlugDown_ThermalVias | U2 |
| 1 | AZ1117IH-3.3TRG1 | SOT-223-3_TabPin2 | U3 |
| 1 | MMA8452QT | MMA8452Q | U4 |
| 1 | STL120N4F6AG | STL120N4F6AG | Q1 |
| 1 | SIS413DN-T1-GE3 | Vishay_PowerPAK_1212-8_Single | Q2 |
| 1 | SSM3K337R | SOT-23 | Q3 |
| 1 | STL76DN4LF7AG | STL76DN4LF7AG | Q4 |
| 1 | SSM3K337R,LF | SOT-23 | Q7 |
| 1 | Screw_Terminal_01x04 | TerminalBlock_Phoenix_MPT-0,5-4-2.54_1x04_P2.54mm_Horizontal | J1 |
| 1 | Screw_Terminal_01x11 | TerminalBlock_Phoenix_MPT-0,5-11-2.54_1x11_P2.54mm_Horizontal | J2 |
| 1 | 15910060 | PinHeader_2x03_P2.54mm_Vertical_SMD | J4 |
| 1 | TL3342F160QG/TR | SW_SPST_TL3342 | SW1 |
| 1 | 150060VS75020 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | BZT52C8V2S-7-F | D_SOD-323_HandSoldering | D2 |
| 1 | 150060RS75020 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 5 | SDM2U30CSP-7 | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4, D5, D6, D7, D9 |
| 4 | BZT585B3V6T | D_SOD-523 | D8, D13, D14, D15 |
| 2 | 150060AS75000 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D10, D11 |
| 1 | CIGT201210UHR47MNE | C_0805_2012Metric | L1 |
Show 13 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 33n | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1 |
| 8 | 100n | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C2, C4, C5, C7, C8, C15, C17, C18 |
| 2 | 10u | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C3, C12 |
| 1 | 200u | CP_Elec_8x10.5 | C6 |
| 3 | 10n | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C9, C10, C11 |
| 1 | 22u | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C13 |
| 1 | 4u7 | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C16 |
| 1 | 1u | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C19 |
| 8 | 1k | R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R2, R3, R6, R8, R10, R19, R20 |
| 5 | 10k | R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R4, R11, R12, R13, R18 |
| 1 | 1k5 | R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R5 |
| 1 | 0 | R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R9 |
| 2 | 0 | R_0402_1005Metric | R16, R17 |
Kyber design files
The KiCad project lives in the lowdrant/kyber repository on GitHub; these links point at the commit this page was built from.
Kyber: common questions
What microcontroller does the Kyber use?
The Kyber is built around the STM32L051K8T6, from the STM32 family.
How big is the Kyber PCB?
The Kyber measures 60.7 × 27.2 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Kyber?
63 components, from 33 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 Kyber design files?
From the lowdrant/kyber repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Kyber design in my own project?
Yes, under the terms of its AGPL-3.0 license, which lowdrant chose for the repository.
Can I test firmware for the Kyber 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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