Stm32g070 and DRV8311 single motor board - V1 Alpha
About the Stm32g070 and DRV8311 single motor board - V1 Alpha
Stm32g070 and DRV8311 single motor board - V1 Alpha is an open source STM32 PCB design by techy-robot, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 38.8 × 42.1 mm, with 55 components from 41 distinct parts.
Its main chip is the STM32G070CBTR, from the STM32 family. Other key parts include the DRV8311HRRWR, BQ298012RUGT and BQ25060. By type, the board carries 19 resistors, 18 capacitors, 4 ICs, 4 transistors, 4 connectors and 2 diodes.
It belongs with the robotics & motion and power & battery designs in this gallery.
From the project
Tiny drone motors with a high reduction gearbox, a precise mangetic encoder, and a FOC controller
I'm currently thinking about having a cycloidal or split-ring planetary gearbox, due to the compact size and high reduction ratios
Preliminary CAD designs are on onshape, you can watch my progress here: Mighty Micro Motors - Onshape. Step files and STL files will also be uploaded to this repo.
Currently the design is twice as big as my ideal, with a 19mm diameter. I can not reduce the diameter without removing the bearings, possible reducing the lifespan. This really needs to be smaller, so I may do some testing and just remove some bearings. I'm not actually sure how well the 1x3x1mm…
Main components on the Stm32g070 and DRV8311 single motor board - V1 Alpha
Stm32g070 and DRV8311 single motor board - V1 Alpha bill of materials (BOM)
55 components, 41 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32G070CBTR STM32G070CBTr | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | DRV8311HRRWR | DRV8311_0.3mmVias | U2 |
| 1 | BQ298012RUGT | RUG8_TEX | U3 |
| 1 | BQ25060 | WSON-10-1EP_2x3mm_P0.5mm_EP0.84x2.4mm_ThermalVias_0.3mm | U4 |
| 1 | NMOS, sir404dp | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q1 |
| 1 | NMOS | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q2 |
| 1 | PMOS,Si7157DP | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q3 |
| 1 | PMOS | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q4 |
| 1 | ABM8-16.000MHZ-10-1-U-T | Crystal_SMD_Abracon_ABM8G-4Pin_3.2x2.5mm | Y1 |
| 1 | JST SH SM04B | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
| 1 | JST SH SM06B | JST_SH_SM06B-SRSS-TB_1x06-1MP_P1.00mm_Horizontal | J2 |
| 1 | Molex_PicoBlade_53048-0310 Horizontal 3P | Molex_PicoBlade_53048-0310_1x03_P1.25mm_Horizontal | J3 |
| 1 | CONN_01X02_PIN Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | SW_Push | SW_Push_1P1T_NO_CK_KMR2 | SW1 |
| 2 | Osram LT Q99G.01 green led | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D3 |
| 1 | 120ohm imp @100mhz | L_0603_1608Metric | FB1 |
| 1 | GND joiner | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | L1 |
| 2 | 0.1UF 0.1uF | C_0603_1608Metric | C1, C19 |
| 1 | 4.7UF 4.7uF | C_0603_1608Metric | C2 |
| 2 | 12PF 12pF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 4.7UF 4.7uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 3 | 0.1uF, 16v | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C7, C9 |
| 2 | 0.1UF 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C18 |
| 1 | 8NF 8nF | C_0603_1608Metric | C11 |
| 1 | 1uF, 16v | C_0603_1608Metric | C12 |
| 3 | 10uF, 16v | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13, C14, C16 |
| 1 | 1000uF, 16v | C_Radial_D5.0mm_H5.0mm_P2.00mm | C15 |
| 1 | 1UF 1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C17 |
| 2 | 100K 100k | R_0603_1608Metric | R1, R17 |
| 1 | 47K 47k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 20OHM 20ohm | R_0603_1608Metric | R3 |
| 2 | 2k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R13 |
| 1 | 300OHM 300ohm | R_0603_1608Metric | R5 |
| 1 | Same, 1000uOhm | RES_WSLF2512_VIS-M | R6 |
| 1 | Vishay WSLF2512, 1%, 300uOhm | RES_WSLF2512_VIS-M | R7 |
| 1 | 402 ohm | R_0603_1608Metric | R8 |
| 2 | 150K 150k | R_0603_1608Metric | R9, R18 |
| 2 | 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R12 |
| 1 | 230OHM 230ohm | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
| 3 | 10K 10k | R_0603_1608Metric | R14, R15, R16 |
| 1 | 80.6 ohm | R_0603_1608Metric | R19 |
Stm32g070 and DRV8311 single motor board - V1 Alpha design files
The KiCad project lives in the techy-robot/Mighty-Micro-Motors repository on GitHub; these links point at the commit this page was built from.
- LayoutKicad/stm32g070 and DRV8311 single motor board - V1 Alpha/stm32g070 and DRV8311 single motor board - V1 Alpha.kicad_pcb
- SchematicKicad/stm32g070 and DRV8311 single motor board - V1 Alpha/stm32g070 and DRV8311 single motor board - V1 Alpha.kicad_sch
- BOMKicad/stm32g070 and DRV8311 single motor board - V1 Alpha/stm32g070 and DRV8311 single motor board - V1 Alpha_BOM.csv
Stm32g070 and DRV8311 single motor board - V1 Alpha: common questions
What microcontroller does the Stm32g070 and DRV8311 single motor board - V1 Alpha use?
The Stm32g070 and DRV8311 single motor board - V1 Alpha is built around the STM32G070CBTR, from the STM32 family.
How big is the Stm32g070 and DRV8311 single motor board - V1 Alpha?
The Stm32g070 and DRV8311 single motor board - V1 Alpha measures 38.8 × 42.1 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Stm32g070 and DRV8311 single motor board - V1 Alpha?
55 components, from 41 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 Stm32g070 and DRV8311 single motor board - V1 Alpha design files?
From the techy-robot/Mighty-Micro-Motors 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 Stm32g070 and DRV8311 single motor board - V1 Alpha design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which techy-robot chose for the repository.
Can I test firmware for the Stm32g070 and DRV8311 single motor board - V1 Alpha 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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