MMS3
About the MMS3 PCB
MMS3 is an open source STM32 PCB design by ArthorH, published on GitHub. It is a 4-layer board measuring 100 × 50 mm, with 156 components from 56 distinct parts.
Its main chip is the STM32F405RGTx, from the STM32 family. Other key parts include the TPS54560BDDA, TPD2EUSB30DRTR-TP, AT24C256C, AMS1117-3.3 and CH334P. By type, the board carries 62 capacitors, 59 resistors, 13 ICs, 8 diodes, 4 crystals and 4 connectors.
From the project
Mini ModuCard System ❤️
Main components on the MMS3
MMS3 bill of materials (BOM)
156 components, 56 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32F405RGTx | LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | TPS54560BDDA | Texas_R-PDSO-G8_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias | U2 |
| 3 | TPD2EUSB30DRTR-TP | SOT-723 | U4, U5, U401 |
| 1 | AT24C256C Microchip Tech | SOIC-8_5.3x5.3mm_P1.27mm | U6 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U15 |
| 1 | CH334P | QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm | U302 |
| 2 | TJA1044GTK/3Z TJA1044GTK_3Z | HVSON-8-1EP_3x3mm_P0.65mm_EP1.6x2.4mm | U500, U501 |
| 1 | STM32F103CBTx | LQFP-48_7x7mm_P0.5mm | U700 |
| 2 | FSUSB42UMX | UQFN-10_1.4x1.8mm_P0.4mm | U801, U802 |
| 1 | MMST3904 hongjiacheng | SOT-23 | Q700 |
| 1 | X32258MOB4SI Yangxing Tech | OSC-SMD_4P-L3.2-W2.5-BL | X1 |
| 1 | Q13FC1350000400 Seiko Epson | FC-135R_L3.2-W1.5 | X2 |
| 1 | 3225-8.00-20-10-10/4B Crystal_GND24 | CRYSTAL-SMD_4P-L3.2-W2.5-BL | Y700 |
| 1 | Crystal_GND24 | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y900 |
| 1 | 86093488324755V1LF | DIN41612_C2_3x16_Female_Vertical_THT | J1 |
| 1 | AMASS XT60 | AMASS_XT60PW-M_1x02_P7.20mm_Horizontal | J2 |
| 1 | AMASS XT60 | AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | J7 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J800 |
| 2 | TC-6615Z-12.5-260 FG(富港) | SW-TH_4P-L7.3-TC-6615Z-12.5-260 | SW3, SW5 |
| 1 | SK12D07VG5 SHOU HAN(首韩) | SW-TH_SK12D07VG5-1 | SW4 |
Show 36 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SMF58CA hongjiacheng | D_SOD-123FL | D1 |
| 3 | SS510B hongjiacheng | D_SMB | D3, D4, D5 |
| 4 | Red Hubei KENTO Elec | D_0603 | D6, D301, D700, D701 |
| 1 | ~ Sunlord | FB_0603 | FB401 |
| 1 | YSPI1050-100M | L_Sunlord_MWSA1005S | L1 |
| 3 | 10nF Samsung Electro-Mechanics | C_0402 | C1, C2, C7 |
| 27 | 100nF Samsung Electro-Mechanics | C_0402 | C3, C4, C5, C6, C12, C13, C15, C19 +19 |
| 2 | 18pF FH(Guangdong Fenghua Advanced Tech) | C_0402 | C8, C9 |
| 2 | 22pF FH(Guangdong Fenghua Advanced Tech) | C_0402 | C10, C11 |
| 2 | 2.2uF Samsung Electro-Mechanics | C_0402 | C16, C17 |
| 1 | 10uF Samsung Electro-Mechanics | C_0603 | C24 |
| 2 | 33pF FH(Guangdong Fenghua Advanced Tech) | C_0402 | C28, C29 |
| 6 | 10uF Murata Electronics | C_0805 | C30, C31, C32, C33, C34, C35 |
| 3 | 10uF Samsung Electro-Mechanics | C_0402 | C36, C37, C902 |
| 2 | 220nF Samsung Electro-Mechanics | C_0805 | C38, C39 |
| 1 | 100nF Samsung Electro-Mechanics | C_0805 | C40 |
| 5 | 22uF Samsung Electro-Mechanics | C_0805 | C41, C42, C45, C46, C47 |
| 1 | 47pF FH(Guangdong Fenghua Advanced Tech) | C_0402 | C43 |
| 1 | 4.7nF FH(Guangdong Fenghua Advanced Tech) | C_0402 | C44 |
| 2 | VZH101M1KTR-1010 100uF | CP_Elec_10x10 | C49, C50 |
| 2 | 1uF Samsung Electro-Mechanics | C_0402 | C700, C904 |
| 6 | 220Ω UNI-ROYAL(Uniroyal Elec) | R_0402 | R1, R2, R3, R4, R707, R713 |
| 3 | 33kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R5, R6, R7 |
| 2 | 5.1kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R8, R9 |
| 17 | 10kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R10, R14, R15, R26, R28, R29, R30, R500 +9 |
| 5 | 100Ω UNI-ROYAL(Uniroyal Elec) | R_0402 | R12, R13, R22, R710, R714 |
| 10 | 22Ω UNI-ROYAL(Uniroyal Elec) | R_0402 | R16, R17, R704, R708, R715, R716, R902, R903 +2 |
| 4 | 1kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R27, R31, R40, R308 |
| 3 | 24.9kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R33, R34, R711 |
| 1 | 43kΩ UNI-ROYAL(Uniroyal Elec) | R_0603 | R36 |
| 1 | 8.2kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R37 |
| 1 | 12kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R38 |
| 1 | 240kΩ UNI-ROYAL(Uniroyal Elec) | R_0603 | R39 |
| 2 | 100kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R700, R702 |
| 1 | 1.5kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R712 |
| 2 | 22kΩ UNI-ROYAL(Uniroyal Elec) | R_0402 | R803, R806 |
MMS3 design files
The KiCad project lives in the ArthorH/MMS3 repository on GitHub; these links point at the commit this page was built from.
MMS3: common questions
What microcontroller does the MMS3 use?
The MMS3 is built around the STM32F405RGTx, from the STM32 family.
How big is the MMS3 PCB?
The MMS3 measures 100 × 50 mm, has 4 copper layers and is 1.645 mm thick.
How many components are on the MMS3?
156 components, from 56 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 MMS3 design files?
From the ArthorH/MMS3 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 MMS3 design in my own project?
The repository has no license, so all rights stay with ArthorH. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the MMS3 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.
Similar boards
STM32LumenPnP Motherboard
opulo-inc
149 × 95 mm296 parts4LCC-BY-SA-4.03.7k
STM32AxxSolder
AxxAxx
39 × 82.5 mm122 parts2LGPL-3.01.7k
STM32LibreVNA
jankae
122 × 98 mm592 parts6LGPL-3.01.6k
STM32AIOC
skuep
21 × 31.5 mm47 parts2LMIT1.4k
STM32Ferris
pierrechevalier83
208.8 × 86.8 mm102 parts2LSHL-2.11.3k
STM32176 pin board
rusefi
61.8 × 73.2 mm76 parts2LGPL-3.01.2k