LargeMD
About the LargeMD PCB
LargeMD is an open source STM32 PCB design by Tomoshibi-technology, published on GitHub under the MIT license. It is a 2-layer board measuring 110 × 60 mm, with 148 components from 54 distinct parts.
Its main chip is the STM32G030K6T6, from the STM32 family. Other key parts include the LF50_TO220, AZ1084CD-3.3, LT6106, MAX3485 and TLP2361. By type, the board carries 55 resistors, 27 capacitors, 20 diodes, 14 transistors, 11 ICs and 10 connectors.
From the project
RoboCup JapanOpen 2024とEindohoven 2024に向けての回路開発
Main components on the LargeMD
LargeMD bill of materials (BOM)
148 components, 54 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LF50_TO220 | BP5293 | U1 |
| 1 | AZ1084CD-3.3 | TO-252-3_TabPin2 | U2 |
| 1 | STM32G030K6T6 | LQFP-32_7x7mm_P0.8mm | U3 |
| 1 | LT6106 | SOT-23-5 | U4 |
| 2 | MAX3485 | SOP-8_3.9x4.9mm_P1.27mm | U5, U6 |
| 2 | TLP2361 | SO-6_4.4x3.6mm_P1.27mm | U7, U8 |
| 2 | IR2302 | SOP-8_3.9x4.9mm_P1.27mm | U9, U10 |
| 1 | NJU6319AE | SOP-8_3.9x4.9mm_P1.27mm | U11 |
| 2 | TJ60S04M3L | TO-252-2 | Q1, Q3 |
| 3 | BSS138 | SOT-23 | Q2, Q17, Q18 |
| 4 | S8050 | SOT-23 | Q4, Q6, Q15, Q16 |
| 1 | SSM3J332R | SOT-23W | Q5 |
| 4 | TPH3R704PL | SOP-Advance | Q19, Q20, Q21, Q22 |
| 1 | 16MHZ 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | CONN_01X02_MALE Conn_01x02_Male | AMASS_XT30PW-M_1x02_P2.50mm_Horizontal | J1 |
| 2 | CONN_01X02_FEMALE Conn_01x02_Female | AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J2, J6 |
| 1 | CONN_01X10_MALE Conn_01x10_Male | BoxHeader_2x05_P1.27mm_Horizontal | J3 |
| 1 | CONN_01X02_MALE Conn_01x02_Male | Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical | J4 |
| 1 | CONN_01X03_MALE Conn_01x03_Male | Molex_SPOX_5268-03A_1x03_P2.50mm_Horizontal | J5 |
| 2 | CONN_01X04_MALE Conn_01x04_Male | Molex_SPOX_5268-04A_1x04_P2.50mm_Horizontal | J7, J8 |
Show 34 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | CONN_01X04_MALE Conn_01x04_Male | Molex_SPOX_5267-04A_1x04_P2.50mm_Vertical | J9, J10 |
| 2 | SOLDERJUMPER_3_BRIDGED12 SolderJumper_3_Bridged12 | SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP1, JP2 |
| 2 | JUMPER_2_OPEN Jumper_2_Open | PinHeader_1x02_P2.54mm_Vertical | JP3, JP4 |
| 1 | SW_DIP_X05 SW_DIP_x05 | DIP-10_W7.62mm | SW1 |
| 1 | SW_SPDT | 3P_SPDT_SlideSwitch | SW2 |
| 1 | SW_SPDT | 3P_SPDT_5Pin_ToggleSwitch | SW3 |
| 1 | SW_SPST | SW_SPST_Omron_B3FS-100xP | SW4 |
| 2 | TestPoint | TestPoint_THTPad_D2.0mm_Drill1.0mm | TP4, TP5 |
| 5 | 1N5819WS | D_SOD-323_HandSoldering | D1, D7, D8, D9, D15 |
| 1 | MA10EB045 | DO-221BC | D2 |
| 5 | Red | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3, D4, D5, D18, D19 |
| 1 | Yellow | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D6 |
| 2 | Green | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D11, D14 |
| 6 | SS2040FL | D_SOD-123 | D16, D17, D20, D21, D22, D23 |
| 6 | 1UF 1uF | C_0402_1005Metric | C1, C4, C5, C6, C11, C31 |
| 3 | 10UF 10uF | C_0805_2012Metric | C3, C20, C21 |
| 9 | 0.1UF 0.1uF | C_0402_1005Metric | C7, C10, C22, C23, C24, C25, C26, C27 +1 |
| 7 | 470UF 470uF | C_Elec_8x10.2 | C13, C14, C15, C16, C17, C18, C19 |
| 2 | C13585 C | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C29, C30 |
| 23 | 10K 10k | R_0402_1005Metric | R1, R2, R3, R4, R5, R6, R7, R9 +15 |
| 1 | 100K 100k | R_0402_1005Metric | R8 |
| 1 | 33K 33k | R_0603_1608Metric | R11 |
| 1 | 10K 10k | R_0603_1608Metric | R12 |
| 6 | 1k | R_0402_1005Metric | R13, R14, R15, R16, R33, R36 |
| 2 | 20MR 20mR | R_2512_6332Metric | R37, R68 |
| 6 | 47 | R_0603_1608Metric | R38, R39, R58, R59, R60, R61 |
| 2 | 7.5K 7.5k | R_0603_1608Metric | R40, R41 |
| 1 | 39 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R42 |
| 2 | 20K 20k | R_0402_1005Metric | R45, R46 |
| 2 | 470 | R_0402_1005Metric | R47, R48 |
| 1 | 3.3K 3.3k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R49 |
| 4 | 2.2K 2.2k | R_0402_1005Metric | R50, R51, R52, R53 |
| 2 | 120 | R_0402_1005Metric | R56, R57 |
| 1 | MPR | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R62 |
LargeMD design files
The KiCad project lives in the Tomoshibi-technology/RCJ-Japan2024-Circuit repository on GitHub; these links point at the commit this page was built from.
LargeMD: common questions
What microcontroller does the LargeMD use?
The LargeMD is built around the STM32G030K6T6, from the STM32 family.
How big is the LargeMD PCB?
The LargeMD measures 110 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the LargeMD?
148 components, from 54 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 LargeMD design files?
From the Tomoshibi-technology/RCJ-Japan2024-Circuit 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 LargeMD design in my own project?
Yes, under the terms of its MIT license, which Tomoshibi-technology chose for the repository.
Can I test firmware for the LargeMD 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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