Mynd Main
About the Mynd Main PCB
Mynd Main is an open source STM32 PCB design by teufelaudio, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 75 × 136 mm, with 560 components from 141 distinct parts.
Its main chip is the STM32F072RBT6, from the STM32 family. Other key parts include the LM51231QRGRRQ1, SGM358YMS, INA181A1IDBVR, PTPS25751SRSMR and SGM7SZ14YN5G/TR. By type, the board carries 188 resistors, 173 capacitors, 90 test points, 26 inductors, 25 transistors and 13 ICs.
It belongs with the audio designs in this gallery.
From the project
Hardware design files for the Mynd audio speaker, including CAD models, schematics.
Main components on the Mynd Main
Mynd Main bill of materials (BOM)
560 components, 141 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM51231QRGRRQ1 | QFN20_350X350X100_50_P200X200 | U1B |
| 1 | STM32F072RBT6 | LQFP64_1000X1000X160_50 | U1C |
| 2 | SGM358YMS | VSSOP8 | U1D, U2D |
| 1 | INA181A1IDBVR | SOT23_6_SC74 | U1E |
| 1 | PTPS25751SRSMR | QFN32_400X400X80_40_P280X280_A | U1U |
| 1 | SGM7SZ14YN5G/TR | SOT23-5 | U2B |
| 1 | BQ25713RSNR | QFN32_400X400X80_40_P280X280_A | U2E |
| 1 | FT24C512A-TSR-T | SO-8 | U2U |
| 1 | TPS562201DDCR | SOT23_6_SC74 | U3E |
| 2 | SGM7227YUWQ10G | QFN10_180X140X60_40 | U3U, U4U |
| 1 | TPS54302DDCR | SOT23_6_SC74 | U4E |
| 1 | JMTG080P03A | DFN8_500X600X100_127_A | Q1B |
| 4 | CJ3401 | SOT23-GSD | Q1C, Q3C, Q4U, Q5U |
| 6 | AP4024GEMT-HF | DFN8_500X600X100_127_A | Q1E, Q1U, Q2E, Q2U, Q3E, Q4E |
| 2 | JMTG60N04B | DFN8_500X600X100_127_A | Q2B, Q3B |
| 9 | 2N7002K | SOT23-GSD | Q2C, Q3U, Q4B, Q4C, Q5B, Q6B, Q6E, Q7B +1 |
| 1 | SSC8039GN6 | DFN8_500X600X100_127_A | Q5E |
| 2 | AO3402 | SOT23_16_GSD | Q6U, Q7U |
| 1 | 3P PITCH=2.54mm | Pin_Header_SMD_S_T_254_3P | P1C |
| 1 | WT250MW-084R-0W | CON_250_SMD_H_8P | P1M |
Show 121 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1.27PH 2X5P H2.0 SMT | Pin_Header_2x5_127 | P2C |
| 2 | 2.54FH 2x12Pin H3.55 SMT | Female_SMD_Bottom_2X12_254 | P2M, P3M |
| 1 | WB200AL-10 | WB200AL_2x5P | P4M |
| 1 | WB200AL-12 | WB200AL_2x6P | P5M |
| 1 | WB200AL-06 | WB200AL_2x3P | P6M |
| 1 | BDFN2C121V | DFN2_100X60X50_65 | ESD1C |
| 17 | AU3321P1 | DFN2_100X60X50_65 | ESD2C, ESD3C, ESD4C, ESD5C, ESD6C, ESD7C, ESD8C, ESD9C +9 |
| 6 | SCREW_HOLE_D30 | SCREW_D30 | MH1M, MH2M, MH3M, MH4M, MH5M, MH6M |
| 2 | MARK | MARK | MK1M, MK2M |
| 13 | TP_T_60_40 | TP_T_60_40 | TP1B, TP1E, TP1U, TP2B, TP2C, TP2E, TP2U, TP3B +5 |
| 3 | TP | TP060 | TP1C, TP1D, TP2D |
| 72 | TP12 | TP120 | TP1M, TP2M, TP3M, TP4M, TP5M, TP6M, TP7C, TP7M +64 |
| 2 | TP06 | TP060 | TP3U, TP4U |
| 1 | 3.3 | Teufel_ASM_Rev | Teufel_ASM_Label1M |
| 1 | 2023 | TEUFEL_COPYRIGHT | Teufel_Copyright1M |
| 1 | 3.3 | Teufel_PCB_Rev | Teufel_PCB_Label1M |
| 2 | B5819W | SOD-123 | D1B, D1E |
| 1 | BAT54C | SOT23-123 | D1C |
| 4 | BAT54WS | SOD-323 | D1U, D2B, D3C, D4C |
| 1 | BZT52C3V3 | SOD-123 | D2C |
| 16 | 600R | L0603 | FB1C, FB1D, FB3C, FB5C, FB6C, FB7C, FB8C, FB9C +8 |
| 1 | 120R | L0805 | FB1E |
| 4 | 33R | R0603 | FB2C, FB4C, FB11C, FB13C |
| 1 | 4.7uH | IND_SMD_YT_SQU_L135XW126XH57 | L1B |
| 1 | 2.2uH | IND_SMD_YT_SQU_L118XW108XH40_A | L1E |
| 1 | NC | CET2012D | L1U |
| 1 | 3.3uH | IND_SMD_SQU_L60XW60XH20 | L2E |
| 1 | 10uH | IND_SMD_YT_SQU_L78XW70XH30 | L3E |
| 1 | 2.2nF | C0603X100 | C1B |
| 42 | 100nF | C0603X100 | C1C, C3D, C4B, C5B, C6B, C6D, C7B, C9E +34 |
| 5 | 47pF | C0603X80 | C1D, C8D, C10D, C14D, C32B |
| 10 | 22uF | C1206 | C1E, C7E, C8E, C13E, C14B, C14E, C15B, C15E +2 |
| 2 | 4.7uF | C0805_145 | C1U, C26B |
| 3 | 1nF | C0603X100 | C2B, C11E, C37C |
| 18 | 33pF | C0603X80 | C2C, C3C, C4C, C5C, C6C, C7C, C8C, C9C +10 |
| 1 | 4.7uF | C0603X100 | C2D |
| 3 | NC | C0603X80 | C2E, C3E, C55E |
| 3 | 1uF | C0805_145 | C2U, C3U, C23E |
| 4 | 10nF | C0603X100 | C3B, C7D, C10E, C30B |
| 4 | 470nF | C0603X100 | C4D, C12D, C22E, C31E |
| 3 | 220uF | ECAP_SMD_800X1000 | C4E, C10B, C12B |
| 10 | 10uF | C0805_145 | C4U, C7U, C9D, C9U, C11U, C15D, C23C, C25C +2 |
| 1 | 150nF | C0603X100 | C5D |
| 3 | 47uF | ECAP_SMD_630X540 | C5E, C6E, C42E |
| 2 | 100uF | ECAP_SMD_630X540 | C5U, C6U |
| 5 | 10uF | C1206 | C8B, C9B, C21B, C22B, C43E |
| 4 | 2.2uF | C0805_145 | C8U, C52E, C53E, C54E |
| 4 | 330pF | C0603X80 | C10U, C12U, C16U, C17U |
| 1 | 330uF | E_CAP_SMD_10%2A10.2 | C11B |
| 2 | 100nF | C0603X105 | C15U, C18U |
| 2 | 33nF | C0603X100 | C16E, C17E |
| 7 | 470pF | C0603X80 | C17B, C18C, C21D, C22D, C23D, C24D, C28B |
| 2 | 47nF | C0603X100 | C18E, C20E |
| 2 | 22pF | C0603X80 | C19C, C36C |
| 2 | 4.7uF | C0603X105 | C19D, C20D |
| 2 | 150pF | C0603X80 | C19E, C21E |
| 6 | 100pF | C0603X80 | C23B, C32E, C33B, C36E, C37E, C38E |
| 5 | 1uF | C0603X105 | C25B, C29E, C34C, C37B, C49E |
| 1 | NC | C0603X100 | C25E |
| 3 | 6.8nF | C0603X100 | C29B, C31B, C35B |
| 1 | 2.2uF | C0603X105 | C30E |
| 1 | 15pF | C0603X80 | C34E |
| 1 | 1.8nF | C0603X100 | C35E |
| 1 | 330nF | C0603X105 | C36B |
| 1 | 1.2nF | C0402 | C39E |
| 4 | 22uF | C0805_145 | C45E, C46E, C56E, C57E |
| 1 | 1nF | C0603X105 | C58E |
| 1 | 2.0R | R0805 | R1B |
| 41 | 10k | R0603 | R1C, R1D, R3D, R5D, R8D, R8U, R13C, R13D +33 |
| 2 | 0.02R | R1206 | R1E, R4E |
| 2 | 3.3R | R0603 | R1U, R12B |
| 4 | 0.005R | R1206 | R2B, R4B, R14E, R15E |
| 5 | 330k | R0603 | R2C, R8B, R23E, R29E, R30B |
| 1 | 680k | R0603 | R2D |
| 2 | 3.9R | R0805 | R2E, R3E |
| 30 | 0R | R0603 | R2U, R3U, R4U, R5B, R6B, R6U, R7U, R10B +22 |
| 2 | 470k | R0603 | R3B, R19C |
| 4 | 1k | R0603 | R3C, R15B, R24B, R25B |
| 1 | 8.2k | R0603 | R4C |
| 2 | 15R | R0603 | R4D, R15D |
| 3 | 1.2k | R0603 | R5C, R7C, R22E |
| 2 | 5.1R | R0603 | R5E, R6E |
| 2 | 13k | R0603 | R5U, R9U |
| 8 | NC | R0603 | R6C, R8C, R9C, R10C, R11C, R27B, R33E, R46E |
| 1 | 560R | R0603 | R6D |
| 1 | 8.2R | R0805 | R7B |
| 1 | 1.5k | R0603 | R7D |
| 1 | 1R | R0603 | R7E |
| 2 | NC | R0805 | R8E, R9E |
| 1 | 22k | R0603 | R9B |
| 11 | 100k | R0603 | R9D, R11D, R16E, R20B, R24E, R37E, R39E, R40E +3 |
| 7 | 33k | R0603 | R10D, R12D, R18D, R19D, R23B, R35C, R41E |
| 6 | 10R | R0603 | R10E, R11E, R19E, R20E, R21E, R47E |
| 2 | 68k | R0603 | R12E, R24C |
| 3 | 2.2k | R0603 | R12U, R13U, R27U |
| 1 | 39k | R0603 | R13B |
| 4 | 4.7M | R0603 | R15U, R32C, R36B, R41C |
| 3 | 82k | R0603 | R16B, R23C, R31B |
| 2 | 54.9k | R0603 | R17B, R28B |
| 1 | 120k | R0603 | R17E |
| 2 | 13.3k | R0603 | R18B, R49E |
| 1 | 18.2k | R0603 | R19B |
| 1 | 2.2R | R0805 | R20D |
| 2 | 100R | R0603 | R20U, R28U |
| 1 | 20k | R0603 | R21C |
| 3 | 22R | R0603 | R25C, R26C, R27C |
| 1 | 16k | R0603 | R25E |
| 1 | 49.9k | R0603 | R26B |
| 1 | 40.2k | R0603 | R26E |
| 1 | 7.5k | R0603 | R29B |
| 1 | 220k | R0603 | R30E |
| 1 | 30.1k | R0603 | R31E |
| 1 | 330R | R1206 | R32B |
| 1 | 137k | R0603 | R32E |
| 2 | 1M | R0603 | R34B, R36C |
| 2 | 2M | R0603 | R34E, R36E |
| 2 | 249k | R0402 | R35U, R36U |
| 1 | 180R | R0603 | R37B |
| 1 | 560k | R0603 | R38E |
| 2 | 1M | R0402 | R39U, R40U |
| 1 | 6.8k | R0603 | R48E |
Mynd Main design files
The KiCad project lives in the teufelaudio/mynd-hardware repository on GitHub; these links point at the commit this page was built from.
Mynd Main: common questions
What microcontroller does the Mynd Main use?
The Mynd Main is built around the STM32F072RBT6, from the STM32 family.
How big is the Mynd Main PCB?
The Mynd Main measures 75 × 136 mm, has 4 copper layers and is 1.59968 mm thick.
How many components are on the Mynd Main?
560 components, from 141 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mynd Main design files?
From the teufelaudio/mynd-hardware repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Mynd Main design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which teufelaudio chose for the repository.
Can I test firmware for the Mynd Main 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 mynd-hardware
Mynd AMP
90.5 × 57.5 mm158 parts2LCC-BY-SA-4.076
Mynd BT
55 × 41 mm135 parts4LCC-BY-SA-4.076
Mynd UI
116 × 26 mm81 parts2LCC-BY-SA-4.076
Mynd USB JACK
23 × 20.8 mm38 parts2LCC-BY-SA-4.076
MYNDberry
83.8 × 45.7 mm20 parts2LCC-BY-SA-4.076
Mynd LINE IN Jack
24.1 × 16.5 mm18 parts2LCC-BY-SA-4.076
Mynd Baffle
45 × 30 mm17 parts2LCC-BY-SA-4.076
Mynd Conn
27 × 54 mm15 parts2LCC-BY-SA-4.076
Mynd Batt
41 × 21 mm14 parts2LCC-BY-SA-4.076
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