Moco-RD501
About the Moco-RD501 PCB
Moco-RD501 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 50 × 50 mm, with 114 components from 52 distinct parts.
Its main chip is the STM32G431CBT6, from the STM32 family. Other key parts include the XC6220B331MR, DRV8301, MCP25625 and AS5147. By type, the board carries 50 capacitors, 38 resistors, 7 connectors, 6 transistors, 5 ICs and 2 crystals.
It belongs with the robotics & motion designs in this gallery.
From the project
PMSM/BLDC motor controller/driver PCBs
STM32G431C8T6 MCU, DRV8301 gate driver, CSD18540Q5B power N-MOSFETs and AS5047x magnetic encoder.
Based on ODrive v3.5 PCB and SimpleFOC firmware.
- Copper layer count: 4 - Board overall dimensions: 50 x 50 mm - Min track/spacing: 0.2 mm / 0.2 mm - Min hole diameter: 0.2 mm - Castellated pads: No - Edge card connectors: No - Plated board edge: No
Main components on the Moco-RD501
Moco-RD501 bill of materials (BOM)
114 components, 52 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | XC6220B331MR | SOT-23-5 | U1 |
| 1 | DRV8301 | HTSSOP-56-1EP_6.1x14mm_P0.5mm_EP3.61x6.35mm | U2 |
| 1 | STM32G431CBT6 | LQFP-48_7x7mm_P0.5mm | U3 |
| 1 | MCP25625 | QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | U4 |
| 1 | AS5147 | TSSOP-14_4.4x5mm_P0.65mm | U5 |
| 6 | CSD18540Q5B | TDSON-8-1 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 1 | 8MHZ 8MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 16MHZ 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | CONN_01X06 Conn_01x06 | JST_GH_SM06B-GHS-TB_1x06-1MP_P1.25mm_Horizontal | J1 |
| 1 | Debug | PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | CONN_01X02 Conn_01x02 | AMASS_XT60-M_1x02_P7.20mm_Vertical | J3 |
| 1 | CONN_01X09 Conn_01x09 | JST_GH_SM09B-GHS-TB_1x09-1MP_P1.25mm_Horizontal | J4 |
| 1 | CONN_01X03 Conn_01x03 | AMASS MR30PB-F | J5 |
| 2 | CONN_02X02_TOP_BOTTOM Conn_02x02_Top_Bottom | JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J6, J7 |
| 2 | SW_Push | SW_SPST_CK_RS282G05A3 | SW1, SW2 |
| 1 | NCP18XH103F03RB | R_0603_1608Metric | TH1 |
| 1 | C375569 LED_BAGR | RGB LED 1.6x1.6mm | LD1 |
| 1 | SS34 | D_SMA | D1 |
| 1 | 22UH/1.5A 22uH/1.5A | L_Bourns-SRN8040_8x8.15mm | L1 |
| 2 | 270PF 270pF | C_0402_1005Metric | C1, C4 |
Show 32 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10UF 10uF | C_0402_1005Metric | C2 |
| 1 | 4.7UF 4.7uF | C_0402_1005Metric | C3 |
| 1 | 82PF 82pF | C_0402_1005Metric | C5 |
| 4 | 2.2NF 2.2nF | C_0603_1608Metric | C6, C7, C20, C21 |
| 1 | 15NF 15nF | C_0402_1005Metric | C8 |
| 3 | 2.2UF/50V 2.2uF/50V | C_1206_3216Metric | C9, C15, C27 |
| 2 | 2.2UF/16V 2.2uF/16V | C_0402_1005Metric | C10, C33 |
| 2 | 4.7UF/50V 4.7uF/50V | C_1206_3216Metric | C11, C17 |
| 3 | 1UF 1uF | C_0402_1005Metric | C12, C13, C43 |
| 6 | 100NF/50V 100nF/50V | C_0603_1608Metric | C14, C16, C19, C22, C23, C24 |
| 1 | 22NF 22nF | C_0402_1005Metric | C18 |
| 1 | 68UF 68uF | CP_EIA-6032-28_Kemet-C | C25 |
| 1 | 47UF/50V 47uF/50V | CP_Elec_6.3x7.7 | C26 |
| 7 | 22UF/50V 22uF/50V | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C28, C29, C30, C31, C32, C34, C35 |
| 8 | 100NF 100nF | C_0402_1005Metric | C36, C39, C40, C41, C42, C44, C45, C46 |
| 2 | 12PF 12pF | C_0402_1005Metric | C37, C38 |
| 2 | 22PF 22pF | C_0402_1005Metric | C47, C48 |
| 1 | 1UF 1uF | C_0603_1608Metric | C49 |
| 1 | 100NF 100nF | C_0603_1608Metric | C50 |
| 2 | 4.7K 4.7k | R_0402_1005Metric | R1, R3 |
| 9 | 10K 10k | R_0402_1005Metric | R2, R4, R6, R18, R20, R24, R35, R36 +1 |
| 2 | 680R | R_0402_1005Metric | R5, R7 |
| 2 | 1k | R_0402_1005Metric | R8, R19 |
| 1 | 330R | R_0402_1005Metric | R9 |
| 5 | 3.3K 3.3k | R_0402_1005Metric | R10, R11, R12, R21, R34 |
| 6 | 2.2R | R_0603_1608Metric | R13, R14, R25, R26, R28, R29 |
| 1 | 47K 47k | R_0402_1005Metric | R15 |
| 2 | 22R | R_0402_1005Metric | R16, R17 |
| 1 | C25767 220k 1% | R_0402_1005Metric | R22 |
| 2 | 18K 18k | R_0402_1005Metric | R23, R33 |
| 2 | 0.5mΩ | R_2512_6332Metric | R27, R32 |
| 3 | 120R | R_0402_1005Metric | R30, R31, R37 |
Moco-RD501 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-RD501: common questions
What microcontroller does the Moco-RD501 use?
The Moco-RD501 is built around the STM32G431CBT6, from the STM32 family.
How big is the Moco-RD501 PCB?
The Moco-RD501 measures 50 × 50 mm, has 4 copper layers and is 1.6762 mm thick.
How many components are on the Moco-RD501?
114 components, from 52 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-RD501 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-RD501 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-RD501 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-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
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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