Moco-SC1
About the Moco-SC1 PCB
Moco-SC1 is an open source STM32 PCB design by ziteh, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 40 × 40 mm, with 102 components from 80 distinct parts.
Its main chip is the STM32G431CBT6, from the STM32 family. Other key parts include the XC6220B331MR and DRV8301. By type, the board carries 46 capacitors, 35 resistors, 8 connectors, 3 ICs, 3 transistors and 2 LEDs.
It belongs with the robotics & motion designs in this gallery.
From the project
PMSM/BLDC motor controller/driver PCBs
- 10V~35V, 12A - 3-Phase low-side current sensing. Op-amp Gain=6.74, shunt resistor=20mΩ - Input voltage sensing - 40x40mm square PCB, 4xM3 mounting holes. - STSPIN32G4 3-phase gate driver with embdded MCU SiP - STM32G431VBx3 170MHz, 32KB SRAM, 128KB Flash - 1A sink/source gate drivers, integrated bootstrap diodes - 8~15V/200mA programmable buck for gate driver and 3.3V/150mA LDO - CSD88584Q5DC Dual N-MOSFET half-bridge, 40V, 50A, 5x6mm - MA702 magnetic encoder, SPI interface - TCAN33x 3.3V CAN transceiver - 2x04 2.54mm Pin header for debug, JST GH 1.25mm 1x03 for CAN bus
Main components on the Moco-SC1
Moco-SC1 bill of materials (BOM)
102 components, 80 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | XC6220B331MR STSPIN32G4 | VFQFPN 9X9X1.0 64 PITCH 0.5 | U1 |
| 1 | DRV8301 TCAN337 | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | STM32G431CBT6 MA702 | QFN-16-1EP_3x3mm_P0.5mm_EP1.75x1.75mm | U3 |
| 3 | CSD18540Q5B CSD88584Q5DC | VSON-CLIP-22_5x6mm (DMM0022A)_Alt1 | Q1, Q2, Q3 |
| 1 | 8MHZ 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | CONN_01X06 Debug | PinHeader_2x04_P2.54mm_Vertical | J1 |
| 1 | CAN | JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J2 |
| 1 | CONN_01X02 CAN | JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J3 |
| 1 | CONN_01X09 V+ | wire_rectagnel_3.7mm_D1.5mm | J4 |
| 1 | CONN_01X03 V- | wire_circ_3.7mm_D1.5mm | J5 |
| 1 | CONN_02X02_TOP_BOTTOM A | wire_rectagnel_3.7mm_D1.5mm | J6 |
| 1 | CONN_02X02_TOP_BOTTOM B | wire_rectagnel_3.7mm_D1.5mm | J7 |
| 1 | C | wire_rectagnel_3.7mm_D1.5mm | J8 |
| 1 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | SB1 |
| 1 | RESET | SW_SPST_EVQP7C | SW1 |
| 1 | C375569 Red | LED_0603_1608Metric | LD1 |
| 1 | Blue | LED_0603_1608Metric | LD2 |
| 1 | SS34 MBR180S1 | D_SOD-123F | D1 |
| 1 | 22UH/1.5A 18uH | L_Neosid_SMS-ME3015 | L1 |
| 1 | 270PF 100nF | C_0402_1005Metric | C1 |
Show 60 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10UF 6.8pF | C_0402_1005Metric | C2 |
| 1 | 4.7UF 100nF | C_0402_1005Metric | C3 |
| 1 | 270PF 6.8pF | C_0402_1005Metric | C4 |
| 1 | 82PF 10uF/50V | C_0805_2012Metric | C5 |
| 1 | 2.2NF 100nF | C_0402_1005Metric | C6 |
| 1 | 2.2NF 10uF | C_0402_1005Metric | C7 |
| 1 | 15NF 220nF/50V | C_0805_2012Metric | C8 |
| 1 | 2.2UF/50V 100nF | C_0402_1005Metric | C9 |
| 1 | 2.2UF/16V 100nF | C_0402_1005Metric | C10 |
| 1 | 4.7UF/50V 1uF | C_0402_1005Metric | C11 |
| 1 | 1UF 100nF | C_0402_1005Metric | C12 |
| 1 | 1UF 1uF | C_0402_1005Metric | C13 |
| 1 | 100NF/50V 10uF | C_0805_2012Metric | C14 |
| 1 | 2.2UF/50V 220nF/50V | C_0805_2012Metric | C15 |
| 2 | 100NF/50V 4.7nF/50V | C_0402_1005Metric | C16, C24 |
| 1 | 4.7UF/50V 100nF/50V | C_0402_1005Metric | C17 |
| 1 | 22NF 1nF | C_0402_1005Metric | C18 |
| 2 | 100NF/50V 220nF/50V | C_0805_2012Metric | C19, C23 |
| 1 | 2.2NF 4.7nF/50V | C_0402_1005Metric | C20 |
| 1 | 2.2NF 100nF/50V | C_0402_1005Metric | C21 |
| 1 | 100NF/50V 1nF | C_0402_1005Metric | C22 |
| 1 | 68UF 100nF/50V | C_0402_1005Metric | C25 |
| 1 | 47UF/50V 1nF | C_0402_1005Metric | C26 |
| 1 | 2.2UF/50V 22uF/50V | CP_Elec_5x5.8 | C27 |
| 7 | 22UF/50V 10uF/50V | C_0805_2012Metric | C28, C29, C30, C31, C32, C34, C35 |
| 1 | 2.2UF/16V 10uF/50V | C_0805_2012Metric | C33 |
| 7 | 100NF 10uF/50V | C_0805_2012Metric | C36, C39, C40, C41, C42, C44, C45 |
| 2 | 12PF 10uF/50V | C_0805_2012Metric | C37, C38 |
| 1 | 1UF 10uF/50V | C_0805_2012Metric | C43 |
| 1 | 100NF 1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C46 |
| 1 | 4.7K 120R | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1 |
| 2 | 10K 10k | R_0402_1005Metric | R2, R6 |
| 1 | 4.7K 100k | R_0402_1005Metric | R3 |
| 1 | 10K 22k | R_0402_1005Metric | R4 |
| 1 | 680R 1k | R_0402_1005Metric | R5 |
| 1 | 680R 10k | R_0402_1005Metric | R7 |
| 1 | 10k | R_0402_1005Metric | R8 |
| 1 | 330R 2.2R/125mW | R_0805_2012Metric | R9 |
| 2 | 3.3K 10R | R_0402_1005Metric | R10, R11 |
| 2 | 3.3K 24k | R_0402_1005Metric | R12, R21 |
| 2 | 2.2R 1.78k | R_0402_1005Metric | R13, R25 |
| 1 | 2.2R 20mΩ/3W | R_2512_6332Metric | R14 |
| 1 | 47K 24k | R_0402_1005Metric | R15 |
| 1 | 22R 1.78k | R_0402_1005Metric | R16 |
| 1 | 22R 12k | R_0402_1005Metric | R17 |
| 1 | 10K 2.2R/125mW | R_0805_2012Metric | R18 |
| 1 | 10R | R_0402_1005Metric | R19 |
| 1 | 10K 10R | R_0402_1005Metric | R20 |
| 1 | C25767 1.78k | R_0402_1005Metric | R22 |
| 1 | 18K 20mΩ/3W | R_2512_6332Metric | R23 |
| 1 | 10K 24k | R_0402_1005Metric | R24 |
| 1 | 2.2R 12k | R_0402_1005Metric | R26 |
| 1 | 2.2R/125mW | R_0805_2012Metric | R27 |
| 2 | 2.2R 10R | R_0402_1005Metric | R28, R29 |
| 1 | 120R 24k | R_0402_1005Metric | R30 |
| 1 | 120R 1.78k | R_0402_1005Metric | R31 |
| 1 | 20mΩ/3W | R_2512_6332Metric | R32 |
| 1 | 18K 24k | R_0402_1005Metric | R33 |
| 1 | 3.3K 1.78k | R_0402_1005Metric | R34 |
| 1 | 10K 12k | R_0402_1005Metric | R35 |
Moco-SC1 design files
The KiCad project lives in the ziteh/moco repository on GitHub; these links point at the commit this page was built from.
Moco-SC1: common questions
What microcontroller does the Moco-SC1 use?
The Moco-SC1 is built around the STM32G431CBT6, from the STM32 family.
How big is the Moco-SC1 PCB?
The Moco-SC1 measures 40 × 40 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Moco-SC1?
102 components, from 80 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 Moco-SC1 design files?
From the ziteh/moco repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Moco-SC1 design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which ziteh chose for the repository.
Can I test firmware for the Moco-SC1 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.
More boards in moco
STM32Moco-RD501
50 × 50 mm114 parts4LCERN-OHL-P-2.022
STM32Moco-OD501
60 × 60 mm92 parts4LCERN-OHL-P-2.022
STM32Moco pg4
40 × 40 mm90 parts4LCERN-OHL-P-2.022
Moco-RD321
32 × 32 mm81 parts4LCERN-OHL-P-2.022
STM32Moco rc1
35 × 35 mm80 parts4LCERN-OHL-P-2.022
STM32Moco-OI401
40 × 40 mm65 parts2LCERN-OHL-P-2.022
Moco-BKD8316
35.5 × 41 mm41 parts2LCERN-OHL-P-2.022
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