BMC2
craftit·Robotics·MotorController2/BMC2.kicad_pcb
About the BMC2 PCB
BMC2 is an open source STM32 PCB design by craftit, published on GitHub. It is a 2-layer board measuring 96 × 56 mm, with 134 components from 70 distinct parts.
Its main chip is the STM32F205RBTx, from the STM32 family. Other key parts include the TJA1042T/3, DRV8305, IFX91041EJV50, TC2117-3.3V and MIC2009A-1YM6TR. By type, the board carries 51 capacitors, 31 resistors, 11 connectors, 8 diodes, 7 ICs and 6 transistors.
It belongs with the robotics & motion designs in this gallery.
From the project
Robotics
Main components on the BMC2
BMC2 bill of materials (BOM)
134 components, 70 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TJA1042T/3 | SOIC-8_3.9x4.9mm_Pitch1.27mm | U1 |
| 1 | STM32F205RBTx | LQFP-64_10x10mm_Pitch0.5mm | U2 |
| 1 | DRV8305 | QFP50P900X900X120-49N | U3 |
| 1 | IFX91041EJV50 | SOIC-8-1EP_3.9x4.9mm_Pitch1.27mm | U4 |
| 1 | TC2117-3.3V | SOT-223 | U5 |
| 2 | MIC2009A-1YM6TR | SOT-23-6 | U6, U7 |
| 6 | BSC016N06NS | SON127P532X615X110-8N | Q1, Q2, Q3, Q4, Q5, Q6 |
| 1 | 8MHz | ABM3 | X1 |
| 1 | Sensor | Pin_Header_Angled_1x09 | P1 |
| 2 | CAN | Pin_Header_Angled_1x04 | P2, P12 |
| 1 | DATA | Pin_Header_Angled_1x05 | P3 |
| 1 | USB_OTG | USB_Mini-B | P4 |
| 1 | PhaseA | 1pin | P5 |
| 1 | PhaseB | 1pin | P6 |
| 1 | PhaseC | 1pin | P7 |
| 1 | CONN_02X05 | SMT-HDR-10 | P8 |
| 1 | VSUPPLY | 1pin | P9 |
| 1 | GND | 1pin | P10 |
| 2 | Jumper_NO_Small | R_0805_HandSoldering | JP1, JP3 |
| 1 | Jumper_NC_Small | R_0805_HandSoldering | JP2 |
Show 50 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RESET | SW_SPST_FSMSM | SW1 |
| 1 | CAL | SW_SPST_FSMSM | SW2 |
| 1 | NTC 10K | R_0805_HandSoldering | TH1 |
| 1 | CAN_TX | Measurement_Point_Round-SMD-Pad_Small | W1 |
| 1 | CAN_RX | Measurement_Point_Round-SMD-Pad_Small | W2 |
| 1 | ISenseA | Measurement_Point_Round-SMD-Pad_Small | W3 |
| 1 | ISenseB | Measurement_Point_Round-SMD-Pad_Small | W4 |
| 1 | ISenseC | Measurement_Point_Round-SMD-Pad_Small | W5 |
| 1 | GHA | Measurement_Point_Round-SMD-Pad_Small | W7 |
| 1 | GLA | Measurement_Point_Round-SMD-Pad_Small | W8 |
| 1 | DSUP | Measurement_Point_Round-SMD-Pad_Small | W10 |
| 1 | 5V | Measurement_Point_Round-SMD-Pad_Small | W12 |
| 1 | 3V3 | Measurement_Point_Round-SMD-Pad_Small | W13 |
| 4 | 60V 2A | SOD-123 | D1, D4, D5, D6 |
| 1 | GREEN LED | LED_0805 | D2 |
| 1 | YELLOW | LED_0805 | D3 |
| 1 | 5.6V | SOD-123 | D7 |
| 1 | 3.6V | SOD-123 | D8 |
| 1 | 10uH | R_0805_HandSoldering | L1 |
| 2 | 47uH | SELF-WE-PD3S | L2, L3 |
| 12 | 0.1uF 50V | C_0805_HandSoldering | C1, C2, C7, C9, C10, C11, C12, C13 +4 |
| 2 | 2.2uF 50V | C_0805_HandSoldering | C3, C4 |
| 2 | 15pF | C_0805_HandSoldering | C5, C6 |
| 1 | 4.7uF 25V | C_1206_HandSoldering | C8 |
| 5 | 1uF 50V | C_0805_HandSoldering | C14, C17, C19, C20, C43 |
| 4 | 1uF 100V | C_1206_HandSoldering | C18, C30, C31, C32 |
| 1 | 10nF 50V | C_0805_HandSoldering | C21 |
| 2 | 47nF 200V | C_1206_HandSoldering | C22, C23 |
| 6 | 1nF 50V | C_0805_HandSoldering | C24, C26, C29, C45, C46, C47 |
| 1 | 2.2uF 50V | C_1206_HandSoldering | C27 |
| 1 | 4.7uF 100V | C_1206_HandSoldering | C28 |
| 3 | 30pF 5V | C_0805_HandSoldering | C33, C34, C35 |
| 2 | 220nF 100V | C_1206_HandSoldering | C36, C39 |
| 1 | 100uF 63V | c_elec_10x10.5 | C37 |
| 1 | 22nF 50V | C_0805_HandSoldering | C38 |
| 1 | 220nF 25V | C_0805_HandSoldering | C40 |
| 1 | 100uF 6.3V | c_elec_6.3x5.8 | C41 |
| 1 | 220nF 100V | C_0805_HandSoldering | C42 |
| 3 | 100pF 50V | C_0805_HandSoldering | C48, C49, C50 |
| 1 | 0.1uF 100V | C_0805_HandSoldering | C51 |
| 7 | 1K | R_0805_HandSoldering | R1, R3, R4, R5, R6, R8, R14 |
| 1 | 300R | R_0805_HandSoldering | R2 |
| 5 | 10K | R_0805_HandSoldering | R7, R15, R16, R17, R23 |
| 2 | 22R | R_0805_HandSoldering | R9, R10 |
| 3 | 100R | R_0805_HandSoldering | R11, R12, R22 |
| 1 | 10R | R_0805_HandSoldering | R13 |
| 4 | 39K | R_0805_HandSoldering | R20, R27, R29, R31 |
| 4 | 3K | R_0805_HandSoldering | R21, R28, R30, R32 |
| 3 | R001 | R_PSR400_SENSE | R24, R25, R26 |
| 1 | 22k | R_0805_HandSoldering | R33 |
BMC2 design files
The KiCad project lives in the craftit/Robotics repository on GitHub; these links point at the commit this page was built from.
BMC2: common questions
What microcontroller does the BMC2 use?
The BMC2 is built around the STM32F205RBTx, from the STM32 family.
How big is the BMC2 PCB?
The BMC2 measures 96 × 56 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BMC2?
134 components, from 70 distinct parts. The full bill of materials is listed on this page.
Where can I download the BMC2 design files?
From the craftit/Robotics repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the BMC2 design in my own project?
The repository has no license, so all rights stay with craftit. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the BMC2 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.
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