Kleinvoet
About the Kleinvoet PCB
Kleinvoet is an open source STM32 PCB design by CMGeldenhuys, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 60 × 66 mm, with 167 components from 72 distinct parts.
Its main chip is the STM32F446RCT6, from the STM32 family. Other key parts include the ADAU1978WBCPZ-RL, THS4551, THS4551IRUNR, MCP73831T-2ACI/OT and TPS73733QDRBRQ1. By type, the board carries 61 capacitors, 48 resistors, 10 diodes, 10 inductors, 9 connectors and 8 ICs.
It belongs with the usb & debug tools and rf & radio designs in this gallery.
From the project
Spatially-Distributed Temporally-Synchronised Infrasonic Recorder
Kleinvoet is a self-contained low-cost passive acoustic monitoring device. The recorder was initially designed for distributed infrasonic (8Hz) localisation, and features accurate temporal synchronisation through the use of an onboard GNSS module.
The recorder is capable of 24-bit stereo recording at a variable sampling rate of 8kHz to 192kHz. The recordings along with timestamp and operational log information is stored on a microSD card. The recordings are stored as a series of 256MiB WAV files.
Main components on the Kleinvoet
Kleinvoet bill of materials (BOM)
167 components, 72 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32F446RCT6 STM32F446RETx | LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | ADAU1978WBCPZ-RL ADAU1978 | LFCSP-WQ-40-1EP_6x6mm_P0.5_CP-40-14 | U2 |
| 1 | THS4551 | WQFN-10_RUN | U3 |
| 1 | THS4551IRUNR THS4551 | WQFN-10_RUN | U5 |
| 1 | MCP73831T-2ACI/OT MCP73831-2-OT | SOT-23-5 | U8 |
| 1 | TPS73733QDRBRQ1 | Texas_DRB0008A | U9 |
| 1 | USBLC6-2P6 USBLC6-2SC6 | SOT-666_Handsoldering | U10 |
| 1 | SAM-M8Q ublox_SAM-M8Q | ublox_SAM-M8Q_HandSolder | U11 |
| 1 | NTR3A30PZT1G PMOS | SOT-23_Handsoldering | Q1 |
| 1 | ECS-TXO-3225MV-122.8-TR 12.288MHz | ECS-TXO-3225MV | X1 |
| 1 | ECS-120-12-33-AEN-TR 12 MHz | ECS-33B | Y1 |
| 1 | ECS-.327-7-34B-TR 32.768 kHz | ECX-31B | Y2 |
| 1 | FTSH-107-01-F-DV-K Conn_ST_STDC14 | SAMTEC-FTSH-107-01-X-DV | J1 |
| 1 | FTDI_Conn | PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | Sensor_Conn | TE_7-215079-8 | J3 |
| 2 | FTSH-104-01-F-D GPS_Transmission_Conn | PinHeader_2x04_P1.27mm_Vertical | J4, J16 |
| 1 | 7-215079-8, 7-215083-8 Sensor_Conn | TE_7-215079-8 | J6 |
| 1 | 503182-1852 Micro_SD_Card_Det | microSD_HC_Molex_5031821852 | J11 |
| 1 | 1769 JST-PH | JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J12 |
| 1 | DX07S016JA1R1500 USB_C_Receptacle_USB2.0 | USB_C_Recepetacle_JAE_DX07S016JA1 | J13 |
Show 52 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2898 COIN_BAT | BatteryHolder_Keystone_3002_1x2032 | BT1 |
| 11 | C0603C104M5RACTU 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | CB1, CB2, CB3, CB4, CB5, CB6, CB7, CB9 +3 |
| 2 | C0603C103J5RACTU 10n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | CB8, CB38 |
| 1 | 0ZCM0020FF2G 400mA | Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolder | F1 |
| 1 | PTS647SN50SMTR2LFS RESET | SW_SPST_PTS647 | SW1 |
| 1 | PTS647SN50SMTR2LFS USER | SW_SPST_PTS647 | SW2 |
| 1 | SMLD12BN1WT86 BLUE | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 2 | SMLD12EN1WT86 GREEN | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2, D8 |
| 2 | SML-D12Y8WT86C YELLOW | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3, D9 |
| 2 | RSX101MM-30TR Vf low | D_SOD-123 | D4, D5 |
| 2 | SML-D12D8WT86C ORANGE | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D6, D10 |
| 1 | SML-D12U8WT86C RED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D7 |
| 2 | BLM18KG101TZ1D | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1, FB2 |
| 2 | Ferrite_Bead_Small | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB3, FB4 |
| 2 | BLM15HD102SN1D BLM15HD102SN1 | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB5, FB9 |
| 2 | BLM18KG102SN1D Ferrite_Bead_Small | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB7, FB11 |
| 1 | BLM18EG101TZ1D 100 @ 100 MHz | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB8 |
| 1 | BLM15HD102SN1D BLM15HD102SN1 | L_0402_1005Metric | FB10 |
| 17 | C0805C106K9PACTU 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C10, C11, C12, C13, C14, C20 +9 |
| 5 | C0603C105K8RACTU 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4, C8, C32, C66 |
| 2 | C0603C150J5GACTU 15pF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C6 |
| 2 | C1608C0G1H040C080AA 4p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C9 |
| 10 | C0603C104M5RACTU 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C15, C16, C17, C21, C23, C28, C29, C71 +2 |
| 4 | 220p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C18, C19, C26, C27 |
| 1 | CC0603JRX7R9BB562 5.6n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C24 |
| 1 | CC0603JRNPO9BN391 390p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C25 |
| 4 | C0603C221J5GACTU 220p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C30, C31, C61, C67 |
| 1 | 27n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C34 |
| 2 | OPEN | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C35, C69 |
| 3 | 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C37, C40, C43 |
| 2 | 3.9n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C38, C39 |
| 2 | 10n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C42, C44 |
| 1 | CC0603JRX7R9BB273 27n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C68 |
| 2 | CC0603JRX7R9BB392 3.9n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C72, C73 |
| 2 | C0603C103J5RACTU 10n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C76, C78 |
| 7 | RC0603JR-0710KL 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R11, R12, R14, R15, R86, R89 |
| 8 | RC0603FR-072K2L 2.2k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3, R4, R6, R7, R8, R87, R88 |
| 1 | RC0603FR-1068RL 68 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 2 | RC0603FR-07470KL 500k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R10 |
| 4 | RC0603FR-07100KL 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R19, R65, R84 |
| 1 | RC0603FR-071KL 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R16 |
| 2 | 310 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17, R18 |
| 4 | ERJ-3EKF47R0V 47 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R20, R51, R52, R92 |
| 2 | 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21, R22 |
| 2 | 360 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R23, R24 |
| 2 | 15 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R25, R26 |
| 2 | 47 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R27, R28 |
| 2 | ERJ-3EKF3090V 310 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R41, R42 |
| 2 | ERJ-3EKF3300V 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R45, R46 |
| 2 | ERJ-3EKF3600V 360 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R47, R48 |
| 2 | ERJ-3EKF15R0V 15 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R49, R50 |
| 3 | AC0603FR-135K1L 5.1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R85, R90, R91 |
Kleinvoet design files
The KiCad project lives in the CMGeldenhuys/kleinvoet repository on GitHub; these links point at the commit this page was built from.
- Layoutkleinvoet.kicad_pcb
- Schematickleinvoet.kicad_sch
Kleinvoet: common questions
What microcontroller does the Kleinvoet use?
The Kleinvoet is built around the STM32F446RCT6, from the STM32 family.
How big is the Kleinvoet PCB?
The Kleinvoet measures 60 × 66 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Kleinvoet?
167 components, from 72 distinct parts. The full bill of materials is listed on this page.
Where can I download the Kleinvoet design files?
From the CMGeldenhuys/kleinvoet repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Kleinvoet design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which CMGeldenhuys chose for the repository.
Can I test firmware for the Kleinvoet 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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