Moco-OI401
About the Moco-OI401 PCB
Moco-OI401 is an open source STM32 PCB design by ziteh, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 40 × 40 mm, with 65 components from 56 distinct parts.
Its main chip is the DRV8301, from the STM32 family. Other key parts include the XC6220B331MR, STM32G431CBT6, MCP25625 and AS5147. By type, the board carries 34 capacitors, 12 resistors, 7 connectors, 5 ICs, 1 crystal and 1 switch.
It belongs with the robotics & motion designs in this gallery.
From the project
PMSM/BLDC motor controller/driver PCBs
- 10V~35V operating voltage - 8A peak current - 3x or 6xPWM control - 3-Phase low-side current sense - Ø40mm round PCB - 3xM2 mounting holes, P.C.D Ø35.5mm - STM32G431CBU6 170 MHz MCU - DRV8316C gate driver integrated FETs - AS5047x magnetic encoder
- Mode=1 - CPOL=0. Clock is low when idle. - CPHA=1. Data sampled on 2nd edge (i.e. falling edge). - 16-bit data frame. - MSB first. - nCS pin active low. - 5MHz clock (limited by DRV8316).
Main components on the Moco-OI401
Moco-OI401 bill of materials (BOM)
65 components, 56 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | XC6220B331MR RT9013-33GB | SOT-23-5 | U1 |
| 1 | DRV8301 STM32G431CBUx | QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U2 |
| 1 | STM32G431CBT6 DRV8316CR | VQFN-40_RGF_5x7mm_0.5mm_pitch_thermalpad | U3 |
| 1 | MCP25625 LM4040A50 | SOT-353_SC-70-5 | U4 |
| 1 | AS5147 AS5047x | TSSOP-14_4.4x5mm_P0.65mm | U5 |
| 1 | 8MHZ 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | CONN_01X06 Debug | PinHeader_2x04_P2.54mm_Vertical | J1 |
| 1 | Serial | JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J2 |
| 1 | CONN_01X02 V+ | wire_3.2mm | J3 |
| 1 | CONN_01X09 V- | wire_3.2mm | J4 |
| 1 | CONN_01X03 A | wire_3.2mm | J5 |
| 1 | CONN_02X02_TOP_BOTTOM B | wire_3.2mm | J6 |
| 1 | CONN_02X02_TOP_BOTTOM C | wire_3.2mm | J7 |
| 2 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | SB1, SB2 |
| 1 | SolderJumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | SB3 |
| 1 | RESET | SW_SPST_CK_RS282G05A3 | SW1 |
| 1 | C375569 LED_BAGR | RGB LED 1.6x1.6mm | LD1 |
| 1 | 22UH/1.5A 47uH | L_Taiyo-Yuden_MD-3030 | L1 |
| 1 | 270PF 1uF | C_0603_1608Metric | C1 |
| 1 | 10UF 1uF | C_0603_1608Metric | C2 |
Show 36 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 4.7UF 100nF | C_0402_1005Metric | C3 |
| 1 | 270PF 100nF | C_0402_1005Metric | C4 |
| 1 | 82PF 100nF | C_0402_1005Metric | C5 |
| 1 | 2.2NF 100nF | C_0402_1005Metric | C6 |
| 1 | 2.2NF 10nF | C_0402_1005Metric | C7 |
| 1 | 15NF 1uF | C_0402_1005Metric | C8 |
| 1 | 2.2UF/50V 100nF | C_0402_1005Metric | C9 |
| 1 | 2.2UF/16V 100nF | C_0402_1005Metric | C10 |
| 1 | 4.7UF/50V 12pF | C_0402_1005Metric | C11 |
| 1 | 1UF 12pF | C_0402_1005Metric | C12 |
| 1 | 1UF 47nF/50V | C_0603_1608Metric | C13 |
| 1 | 100NF/50V 1uF/16V | C_0603_1608Metric | C14 |
| 1 | 2.2UF/50V 1uF/6.3V | C_0603_1608Metric | C15 |
| 1 | 100NF/50V 100nF/50V | C_0603_1608Metric | C16 |
| 1 | 4.7UF/50V 10uF/50V | C_0805_2012Metric | C17 |
| 1 | 22NF 100nF/6.3V | C_0603_1608Metric | C18 |
| 1 | 100NF/50V 22uF/16V | C_0805_2012Metric | C19 |
| 2 | 2.2NF 22pF | C_0603_1608Metric | C20, C21 |
| 1 | 100NF/50V 22pF | C_0603_1608Metric | C22 |
| 2 | 100NF/50V 10uF/50V | C_0805_2012Metric | C23, C24 |
| 1 | 68UF 10uF/50V | C_0805_2012Metric | C25 |
| 1 | 47UF/50V 10uF/50V | C_0805_2012Metric | C26 |
| 1 | 2.2UF/50V 10uF/50V | C_0805_2012Metric | C27 |
| 5 | 22UF/50V 10uF/50V | C_0805_2012Metric | C28, C29, C30, C31, C32 |
| 1 | 2.2UF/16V 10uF/50V | C_0805_2012Metric | C33 |
| 1 | 22UF/50V 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C34 |
| 2 | 4.7K 1k | R_0402_1005Metric | R1, R3 |
| 1 | 10K 5.1k | R_0402_1005Metric | R2 |
| 1 | 10K 22R | R_0603_1608Metric | R4 |
| 1 | 680R 5.1k | R_0603_1608Metric | R5 |
| 1 | 10K 5.1k | R_0603_1608Metric | R6 |
| 1 | 680R 330R | R_0603_1608Metric | R7 |
| 1 | 330R | R_0603_1608Metric | R8 |
| 1 | 330R | R_0603_1608Metric | R9 |
| 1 | 3.3K 10k/100mW | R_0603_1608Metric | R10 |
| 2 | 3.3K 10k | R_0603_1608Metric | R11, R12 |
Moco-OI401 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-OI401: common questions
What microcontroller does the Moco-OI401 use?
The Moco-OI401 is built around the DRV8301, from the STM32 family.
How big is the Moco-OI401 PCB?
The Moco-OI401 measures 40 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Moco-OI401?
65 components, from 56 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-OI401 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-OI401 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-OI401 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-SC1
40 × 40 mm102 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
Moco-BKD8316
35.5 × 41 mm41 parts2LCERN-OHL-P-2.022
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