4 layers92 × 88.9 mm
Cubesat obc
ephemeridis/cubesat_obc
A small CubeSat On-Board Computer with lots of processing headroom, utilizing a low power ARM Cortex M33 processor at its core.
311 parts2MIT
4 layers83.8 × 53.3 mm
Loco
dotcypress/loco1Toy CNC platform
- Size
- 83.8 × 53.3 mm
- Copper layers
- 4
- Thickness
- 1.71 mm
- Parts
- 121
- Nets
- 124
- Pads
- 479
- Tracks, vias
- 967, 131
- Pours
- 480
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 15 Jul 2022
- Updated
- 20 Feb 2023
Overview
Loco is an open-source printed circuit board by dotcypress, from the dotcypress/loco repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 83.8 × 53.3 mm with 121 parts on 124 nets, routed with 967 tracks and 131 vias.
It is built around the STSPIN220 and STSPIN240. Its parts include 61 resistors, 31 capacitors, 13 connectors and 9 ICs. It belongs with the STM32 boards of this library.
Main components
2
STSPIN220
VFQFPN-16(3x3)-40℃~+150℃ 1.3A 1.8V~10V 2 256、1、4、8、16、32、64、128 400mΩ Yes VFQFPN-16(3x3) Stepper Motor Driver ROHSSTMicroelectronicsStepper Motor DriverSTSPIN240
QFN-16-EP(3x3)-40℃~+150℃ 1.3A 2 400mΩ 80nA Interleaved conduction protection、Current sensing/regulation function QFN-16-EP(3x3) Brushed DC Motor Drivers ROHSSTMicroelectronicsBrushed DC Motor Drivers
README
readme.mdloco
Toy CNC platform.
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
Parts
121| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 10uF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4, C6, C11, C13, C16, C17, C18, C19, C20, C22, C24, C25, C26, C28 +1 |
| 16 | 10KΩ | Resistor_SMD:R_0603_1608Metric | R7, R14, R15, R18, R19, R25, R27, R28, R31, R44, R48, R49, R52, R53, R59, R61 |
| 16 | DNP | Resistor_SMD:R_0603_1608Metric | R1, R6, R8, R9, R10, R11, R30, R33, R36, R37, R38, R39, R40, R41, R42, R43 |
| 8 | 0.3Ω | Resistor_SMD:R_1206_3216Metric | R12, R13, R16, R17, R45, R46, R50, R51 |
| 8 | 1KΩ | Resistor_SMD:R_0603_1608Metric | R21, R23, R24, R26, R55, R57, R58, R60 |
| 8 | 22nF | Capacitor_SMD:C_0603_1608Metric | C10, C12, C14, C15, C27, C29, C30, C31 |
| 4 | 22uF | Capacitor_SMD:CP_Elec_4x4.5 | C7, C9, C21, C23 |
| 4 | 47KΩ | Resistor_SMD:R_0603_1608Metric | R20, R22, R54, R56 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 150KΩ | Resistor_SMD:R_0603_1608Metric | R34, R35, R47 |
| 3 | 190Ω | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2, RN3 |
| 3 | AP22652_3x | Package_TO_SOT_SMD:SOT-23-6 | U5, U6, U7 |
| 3 | STSPIN220 | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U4, U8, U9 |
| 3 | Stepper1 | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J10, J14, J15 |
| 2 | 0Ω | Resistor_SMD:R_0603_1608Metric | R29, R32 |
| 2 | 4.7KΩ | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | 5.1KΩ | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | EXT | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2 |
| 1 | GPIO | Library:Header_03x06_P2.54mm_Vertical | J3 |
| 1 | I2C | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J1 |
| 1 | LD1117S33TR_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | Motor1 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J9 |
| 1 | Motor2 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J11 |
| 1 | PWR1 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J12 |
| 1 | PWR2 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J13 |
| 1 | STM32C031CxTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | STSPIN240 | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U3 |
| 1 | TagConnect | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J8 |
| 1 | UART | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J7 |
| 1 | USB_C_Receptacle_USB2.0 | @jb:USB_C_Receptacle_JAE_DX07S016JA3R1500 | J6 |
Questions
How big is the Loco PCB?
It measures 83.8 × 53.3 mm and has 4 copper layers, 1.71 mm thick.
What parts does the Loco use?
121 parts, built around the STSPIN220 and STSPIN240. 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 Loco KiCad files?
From the dotcypress/loco repository on GitHub, at the commit this page was made from: the board is pcb/loco.kicad_pcb and its schematic pcb/loco.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Loco design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 4 layers30 × 45 mm
- 6 layers121 × 70.6 mm
Kasm pcb rev2
gabeak2/KASM_ACTUATOR_PCB_REV2
PCBA to drive adaptive mirrors at Keck and UH88
268 partsGPL-3.0 - 4 layers22 × 18.5 mm
- 2 layers65 × 40 mm
LaserProjector REV 04
stanleyondrus/LaserProjectorV2
LaserProjector V2 is a battery-powered, ESP32-based laser XY scanner using stepper motors to deflect the beam. It has auto-homing functionality, and can be controlled wirelessly (Wi-Fi & Bluetooth).
46 parts125 - 2 layers28.2 × 24.5 mm
Mini motor controller
Jana-Marie/mini-motor-controller
A controller for miniature stepper motors
39 parts13CERN-OHL-S-2.0 - 4 layers83 × 55 mm
- 2 layers15.2 × 20.3 mm
