Smoothiev2-prime
About the Smoothiev2-prime PCB
Smoothiev2-prime is an open source STM32 PCB design by Smoothieware, published on GitHub. It is a 4-layer board measuring 110 × 110 mm, with 409 components from 84 distinct parts.
Its main chip is the STM32H745XIHx, from the STM32 family. Other key parts include the LAN8720A, TMC2590, AT25SF081-SSHF-X, TPD4E1U06DCKR and 74HCT541. By type, the board carries 124 resistors, 119 capacitors, 53 diodes, 45 connectors, 32 transistors and 25 ICs.
From the project
Hardware files for the Smoothieboard v2, and extension boards
Extension-board hardware includes independent Ccecil repositories pinned as Git submodules and legacy board designs copied from this repository's master:extensions tree, all under extension-boards/. Clone with --recurse-submodules to initialize the Ccecil boards, or initialize them in an existing clone with git submodule update --init --recursive. The legacy designs are ordinary tracked folders; their source revisions and folder mappings are documented in extension-boards/README.md.
Main components on the Smoothiev2-prime
Smoothiev2-prime bill of materials (BOM)
409 components, 84 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LAN8720A | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U1 |
| 1 | STM32H745XIHx | TFBGA-265_14x14mm_Layout17x17_P0.8mm | U2 |
| 4 | TMC2590 | TMC2590-TA-T | U3, U5, U6, U7 |
| 1 | AT25SF081-SSHF-X | SOIC-8_5.23x5.23mm_P1.27mm | U4 |
| 6 | TPD4E1U06DCKR | SOT-363_SC-70-6 | U8, U10, U11, U13, U14, U17 |
| 1 | 74HCT541 | TSSOP-20_4.4x6.5mm_P0.65mm | U9 |
| 1 | LMV324 | TSSOP-14_4.4x5mm_P0.65mm | U12 |
| 1 | 74LCX07 | TSSOP-14_4.4x5mm_P0.65mm | U15 |
| 4 | MT9700 | SOT-23-5 | U16, U18, U19, U20 |
| 1 | TPS5430DDA | TI_SO-PowerPAD-8_ThermalVias | U21 |
| 1 | MT3410L | SOT-23-5 | U22 |
| 1 | AP22814AW5 | SOT-23-5 | U23 |
| 1 | LMV331 | SOT-23-5 | U24 |
| 1 | BD4722G | SOT-23-5 | U25 |
| 16 | Si4542DY | SOIC-8_3.9x4.9mm_P1.27mm | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +8 |
| 6 | WSD3066DN33 | VSON-8_3.3x3.3mm_P0.65mm_NexFET | Q17, Q18, Q19, Q20, Q21, Q22 |
| 2 | CJ2301 S1 | SOT-23 | Q23, Q24 |
| 1 | WSD30L40DN | Vishay_PowerPAK_1212-8_Single | Q25 |
| 1 | 2N7002 | SOT-23 | Q26 |
| 3 | MBT3906DW1 | SOT-363_SC-70-6 | Q27, Q29, Q31 |
Show 64 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | SQ3493EV | TSOP-6_1.65x3.05mm_P0.95mm | Q28, Q30, Q32 |
| 2 | Crystal_GND24 | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y3 |
| 1 | Crystal | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | USB_B | USB_B_OST_USB-B1HSxx_Horizontal | J1 |
| 1 | USB_A | USB_A_Wuerth_614004134726_Horizontal | J2 |
| 1 | Micro_SD_Card_Det | TF-01A | J3 |
| 1 | RJ45_Hanrun_HR911105A | RJ45_Hanrun_HR911105A | J4 |
| 1 | Screw_Terminal_01x04 | CONN_MOTOR | J5 |
| 3 | Screw_Terminal_01x04 | CONN_MOTOR2 | J6, J7, J8 |
| 4 | Conn_01x02 | XT30 | J9, J12, J14, J16 |
| 6 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J10, J11, J13, J15, J44, J45 |
| 2 | Conn_01x02 | CONN_SFET | J17, J18 |
| 5 | Conn_01x02 | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J19, J20, J21, J22, J23 |
| 6 | Conn_01x03 | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J24, J25, J26, J27, J28, J29 |
| 1 | Conn_01x03_Male | PinHeader_1x03_P2.54mm_Vertical | J30 |
| 1 | Conn_01x04 | Molex_KK-254_AE-6410-04A_1x04_P2.54mm_Vertical | J31 |
| 9 | Conn_02x05_Odd_Even | PinHeader_2x05_P1.27mm_Vertical_SMD | J32, J33, J34, J35, J36, J37, J38, J39 +1 |
| 1 | Conn_ARM_JTAG_SWD_10 | PinHeader_2x05_P1.27mm_Vertical | J41 |
| 2 | Conn_01x02 | TerminalBlock_4Ucon_1x02_P3.50mm_Vertical | J42, J43 |
| 1 | DNP | BatteryHolder_LINX_BAT-HLD-012-SMT | BT1 |
| 1 | SW_Push | SW_Tactile_SPST_Angled_PTS645Vx58-2LFS | SW1 |
| 1 | TS-1185EC-C-D-B | SW_Push_1P1T_NO_CK_KMR2 | SW2 |
| 1 | ~ | R_0603_1608Metric | TH1 |
| 15 | LED | LED_0603_1608Metric | D1, D2, D4, D5, D6, D7, D8, D24 +7 |
| 14 | LESD8D3.3CAT5G | D_0402_1005Metric | D3, D9, D10, D11, D12, D13, D14, D15 +6 |
| 1 | B5817WS | D_SOD-323 | D22 |
| 6 | B340A | D_SMA | D23, D48, D49, D50, D51, D52 |
| 1 | D | D_SOD-323 | D31 |
| 16 | SJD12C30L01 | D_SOD-123 | D32, D33, D34, D35, D36, D37, D38, D39 +8 |
| 1 | CBG160808U601T | L_0603_1608Metric | L1 |
| 2 | MHCD252012A-2R2M-A8S | L_1008_2520Metric | L2, L4 |
| 1 | YSPI0630A-220M | L_Sumida_CDMC6D28_7.25x6.5mm | L3 |
| 1 | 470p | C_0402_1005Metric | C1 |
| 17 | 100n | C_0402_1005Metric | C2, C4, C5, C6, C9, C12, C21, C30 +9 |
| 9 | 10u | C_0603_1608Metric | C3, C11, C20, C29, C38, C62, C70, C71 +1 |
| 2 | DNP | C_0402_1005Metric | C7, C46 |
| 43 | 1u | C_0402_1005Metric | C8, C10, C13, C19, C22, C28, C31, C37 +35 |
| 18 | 10u | C_1206_3216Metric | C14, C15, C16, C17, C23, C24, C25, C26 +10 |
| 7 | CP | CP_Elec_8x11.9 | C18, C27, C36, C45, C47, C48, C111 |
| 6 | 5.6p | C_0402_1005Metric | C63, C64, C65, C66, C67, C68 |
| 1 | 220p | C_0402_1005Metric | C69 |
| 13 | 22u | C_0805_2012Metric | C101, C104, C105, C106, C107, C108, C109, C112 +5 |
| 1 | 10n | C_0402_1005Metric | C110 |
| 1 | 22p | C_0402_1005Metric | C114 |
| 1 | 12.1k | R_0402_1005Metric | R1 |
| 28 | 10k | R_0402_1005Metric | R2, R32, R33, R35, R36, R37, R38, R39 +20 |
| 2 | DNP | R_0402_1005Metric | R3, R31 |
| 31 | 1k | R_0402_1005Metric | R4, R5, R34, R40, R41, R42, R43, R44 +23 |
| 9 | 33R | R_0402_1005Metric | R6, R7, R8, R9, R10, R11, R12, R13 +1 |
| 8 | 47R | R_0402_1005Metric | R15, R16, R19, R20, R23, R24, R27, R28 |
| 8 | R | R_2512_6332Metric | R17, R18, R21, R22, R25, R26, R29, R30 |
| 4 | 4.7k | R_0402_1005Metric | R46, R63, R67, R80 |
| 3 | 7.1k | R_0402_1005Metric | R47, R104, R115 |
| 6 | 100R | R_0402_1005Metric | R51, R52, R72, R73, R74, R75 |
| 5 | 100k | R_0402_1005Metric | R61, R69, R106, R109, R112 |
| 5 | 21.5k | R_0402_1005Metric | R64, R65, R66, R89, R100 |
| 1 | 3.24k | R_0402_1005Metric | R82 |
| 1 | 8.2k | R_0402_1005Metric | R97 |
| 1 | 56k | R_0402_1005Metric | R99 |
| 1 | 33k | R_0402_1005Metric | R103 |
| 1 | 3.24k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R114 |
| 1 | 49.9R | R_Array_Concave_4x0603 | RN1 |
| 5 | 10k | R_Array_Concave_4x0603 | RN2, RN5, RN6, RN7, RN8 |
| 3 | 4.7k | R_Array_Concave_4x0603 | RN3, RN4, RN9 |
Smoothiev2-prime design files
The KiCad project lives in the Smoothieware/Smoothieboard2 repository on GitHub; these links point at the commit this page was built from.
Smoothiev2-prime: common questions
What microcontroller does the Smoothiev2-prime use?
The Smoothiev2-prime is built around the STM32H745XIHx, from the STM32 family.
How big is the Smoothiev2-prime PCB?
The Smoothiev2-prime measures 110 × 110 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Smoothiev2-prime?
409 components, from 84 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 Smoothiev2-prime design files?
From the Smoothieware/Smoothieboard2 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Smoothiev2-prime design in my own project?
The repository has no license, so all rights stay with Smoothieware. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Smoothiev2-prime 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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