4 layers78 × 86 mm
SJ-201-R10
MycroftAI/hardware-mycroft-mark-II
Mycroft's Mark II Rpi mechanical, electrical and industrial designs
185 parts113
4 layers60 × 60 mm
Stmboard
he1k/stmservo"#STM32 based brushed DC motor servo board"
- Size
- 60 × 60 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 66
- Pads
- 299
- Tracks, vias
- 334, 155
- Pours
- 20
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 27 Jan 2025
- Updated
- 27 Jan 2025
Overview
Stmboard is an open-source printed circuit board by he1k, from the he1k/stmservo repository on GitHub. It is a 4-layer board of 60 × 60 mm with 78 parts on 66 nets, routed with 334 tracks and 155 vias.
It is built around the DRV8873HPWP, INA240A1D and 2N24000G33YC, with the TLV76733DRVR, TPD2EUSB30DRTR and AO3401A among its other parts. Its parts include 24 capacitors, 16 resistors, 9 diodes, 7 ICs and 7 connectors. It belongs with the STM32 boards of this library.
Main components
6
DRV8873HPWP
HTSSOP-24-EP-40℃~+125℃ 10A 10uA 150mΩ SPI Yes HTSSOP-24-EP Brushed DC Motor Drivers ROHSTexas InstrumentsBrushed DC Motor Drivers
INA240A1D
SOIC-8-40℃~+125℃ -4V~80V 1 1.8mA 132dB 2.7V~5.5V 20V/V 250nV/℃ 2V/us 400kHz 40nV/√Hz@1kHz 5uV 90uA Bidirectional detection、Zero drift / auto-zero、Programmable output reference level、Analog output interface ±80V SOIC-8 Current Sense Amplifiers ROHSTexas InstrumentsCurrent Sense Amplifiers
2N24000G33YC
SMD2520-4P-40℃~+85℃ 1.8V~3.3V 24MHz 5mA ±30ppm SMD2520-4P Crystal Oscillators ROHSSJKCrystal Oscillators
TLV76733DRVR
WSON-6(2x2)-40℃~+125℃@(Tj) 1 1.4V@(1A) 16V 1A 3.3V 46dB@(1MHz) 50uA 60uVrms Fixed Over Current Protection、Over Temperature Protection、Soft Start Positive WSON-6(2x2) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TPD2EUSB30DRTR
SOT(9x3)0.4pF 100nA 18V 5.5V 7V IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 TVS Unidirectional SOT(9x3) ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
README
README.md"#STM32 based brushed DC motor servo board"
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 220 | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R4, R5, R6, R7, R8, R12 |
| 8 | GREEN | LED_SMD:LED_0402_1005Metric | D1, D2, D3, D4, D5, D6, D7, D8 |
| 6 | 100n | Capacitor_SMD:C_0402_1005Metric | C3, C4, C10, C13, C16, C21 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 100n | Capacitor_SMD:C_1206_3216Metric | C8, C14, C15 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R11, R15, R16 |
| 3 | 10u | Capacitor_SMD:C_1206_3216Metric | C5, C6, C7 |
| 3 | jlcpcb_tooling_hole | jlcpcb:jlcpcb_tooling_hole | REF1, REF3, REF4 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric | C19, C24 |
| 2 | 220u | Capacitor_SMD:CP_Elec_6.3x7.7 | C18, C20 |
| 2 | 2k2 | Resistor_SMD:R_0402_1005Metric | R9, R10 |
| 2 | 4u7 | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | I2C | Connector_Molex:Molex_PicoBlade_53048-0410_1x04_P1.25mm_Horizontal | J3, J4 |
| 2 | sw_pwr | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2, J7 |
| 1 | 100n | Capacitor_SMD:C_0603_1608Metric | C23 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C11 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C22 |
| 1 | 15m | Resistor_SMD:R_1206_3216Metric | R13 |
| 1 | 1u | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 200k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 2N24000G33YC | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | IC4 |
| 1 | 39n | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 47n | Capacitor_SMD:C_0402_1005Metric | C17 |
| 1 | 4u7 | Capacitor_SMD:C_1206_3216Metric | C12 |
| 1 | 600 @ 100MHz | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | DRV8873H | Package_SO:HTSSOP-24-1EP_4.4x7.8mm_P0.65mm_EP3.4x7.8mm_Mask2.4x2.98mm_ThermalVias | IC5 |
| 1 | INA240A1D | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | IC7 |
| 1 | LOGO | silkgraphix:mech | G1 |
| 1 | LOGO | silkgraphix:kt | G3 |
| 1 | LOGO | silkgraphix:circuit | G2 |
| 1 | LOGO | silkgraphix:ke | G4 |
| 1 | Motor_Conn | Connector_AMASS:AMASS_XT30UPB-F_1x02_P5.0mm_Vertical | J6 |
| 1 | PWR_Conn | Connector_AMASS:AMASS_XT30UPB-M_1x02_P5.0mm_Vertical | J5 |
| 1 | SN74HC164PWR | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | IC6 |
| 1 | STM32L412KBTx | Package_QFP:LQFP-32_7x7mm_P0.8mm | IC1 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | TLV76733DRVR | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm_ThermalVias | IC3 |
| 1 | TPD2EUSB30DRTR | Package_TO_SOT_SMD:Texas_DRT-3 | IC2 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J1 |
| 1 | YELLOW | LED_SMD:LED_0603_1608Metric | D9 |
Questions
How big is the Stmboard PCB?
It measures 60 × 60 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Stmboard use?
78 parts, built around the DRV8873HPWP, INA240A1D, 2N24000G33YC and TLV76733DRVR. 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.
Where can I download the Stmboard KiCad files?
From the he1k/stmservo repository on GitHub, at the commit this page was made from: the board is pcb/stmboard/stmboard.kicad_pcb and its schematic pcb/stmboard/stmboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stmboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask he1k before reusing the design.
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