Leviathan
About the Leviathan PCB
Leviathan is an open source STM32 PCB design by MotorDynamicsLab, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 170 × 100 mm, with 406 components from 117 distinct parts.
Its main chip is the STM32H743ZIT6, from the STM32 family. Other key parts include the TMC2209_LA, TMC5160-WA, MCP1416, AP2112K-3.3V/AP2127K-3.3V and TJA1057GT. By type, the board carries 168 capacitors, 109 resistors, 34 connectors, 28 diodes, 16 transistors and 15 ICs.
It belongs with the robotics & motion designs in this gallery, and the repository also holds 1 earlier revision of it.
From the project
Leviathan Main Controller for Voron 2 / Trident 3D Printers
Main components on the Leviathan
Leviathan bill of materials (BOM)
406 components, 117 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | TMC2209_LA | QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm_ThermalVias | U1, U2, U3, U4, U5 |
| 2 | TMC5160-WA | QFN-56-1EP_8x8mm_P0.5mm_EP6.25x6.25mm_ThermalVias_TMC | U6, U10 |
| 2 | MCP1416 | SOT-23-5 | U7, U8 |
| 1 | STM32H743ZIT6 | LQFP-144_20x20mm_P0.5mm | U9 |
| 1 | AP2112K-3.3V/AP2127K-3.3V | SOT-23-5 | U11 |
| 1 | TJA1057GT | SOIC-8_3.9x4.9mm_P1.27mm | U12 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U14 |
| 1 | 74LVC1G17GW | SOT-353_SC-70-5 | U15 |
| 1 | LM3407MY | MSOP-8-1EP_3x3mm_P0.65mm_EP1.73x1.85mm_ThermalVias | U16 |
| 2 | SUD50P06-15-GE3 | TO-252-2 | Q1, Q2 |
| 8 | SiZ270DT | Vishay_PowerPair_3x3S | Q3, Q4, Q6, Q7, Q9, Q10, Q11, Q12 |
| 2 | DMTH6005LK3Q-13 | TO-252-2 | Q5, Q8 |
| 4 | SQ2348ES | SOT-23 | Q13, Q14, Q15, Q16 |
| 1 | 25MHz | Crystal_SMD_Abracon_ABM8G-4Pin_3.2x2.5mm | Y1 |
| 1 | PWR_HV_DRV | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J1 |
| 1 | Stepper0 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J2 |
| 1 | Stepper1 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J3 |
| 1 | Stepper2 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J4 |
| 1 | Stepper3 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J5 |
| 1 | Stepper4 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J6 |
Show 97 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PWR_IN | TerminalBlock_Phoenix_MKDS-1,5-6_1x06_P5.00mm_Horizontal | J7 |
| 1 | SWD | PinHeader_2x03_P2.54mm_Vertical | J8 |
| 1 | PWR/UART | JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | J9 |
| 1 | HV_Stepper1 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J10 |
| 1 | HV_Stepper0 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J11 |
| 1 | LED-Strip | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J12 |
| 4 | FAN_V | PinHeader_1x03_P2.54mm_Vertical | J13, J14, J15, J16 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J17 |
| 1 | T2 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J18 |
| 1 | T3 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J19 |
| 1 | PROBE_V | PinHeader_1x03_P2.54mm_Vertical | J20 |
| 1 | Z-Probe | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J21 |
| 1 | FAN_0 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J22 |
| 1 | FAN_1 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J23 |
| 1 | FAN_2 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J24 |
| 1 | FAN_3 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J25 |
| 1 | T0 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J26 |
| 1 | T1 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J27 |
| 1 | Neopixel | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J28 |
| 1 | Fil | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J29 |
| 1 | X | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J30 |
| 1 | Y | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J31 |
| 1 | Z | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J32 |
| 1 | CAN_BUS | Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal | J33 |
| 1 | Conn_02x15_Odd_Even | PinSocket_2x15_P2.54mm_Horizontal | J34 |
| 1 | LCD | IDC-Header_2x05_P2.54mm_Vertical | EXP1 |
| 1 | SPI | IDC-Header_2x05_P2.54mm_Vertical | EXP2 |
| 2 | Fuse | Fuseholder_Blade_Mini_Keystone_3568 | F1, F2 |
| 2 | 10A | Fuseholder_Littelfuse_Nano2_154x | F3, F4 |
| 3 | 0.5A | Fuse_1206_3216Metric | F5, F6, F7 |
| 2 | Heatsink | M2_Heatsink_70x22x3 | HS1, HS2 |
| 1 | Heatsink | Heatsink_90x10x10 | HS5 |
| 1 | term | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | R-745.0P K7805-3AR3 | R7450P | PS1 |
| 1 | K7812-2000R3 | Converter_DCDC_RECOM_R-78B-2.0_THT | PS2 |
| 1 | K7805-2000R3 | Converter_DCDC_RECOM_R-78B-2.0_THT | PS3 |
| 4 | 54V | R_1206_3216Metric | RV1, RV2, RV3, RV4 |
| 10 | 27V | R_1206_3216Metric | RV5, RV6, RV7, RV8, RV9, RV10, RV11, RV12 +2 |
| 1 | Reset | SW_SPST_B3U-1000P | SW1 |
| 1 | BOOT0 | SW_SPST_B3U-1000P | SW2 |
| 2 | 15V | D_SOD-123 | D1, D3 |
| 10 | red | LED_0603_1608Metric | D2, D4, D7, D8, D9, D16, D17, D18 +2 |
| 1 | Hotend | LED_0603_1608Metric | D5 |
| 1 | Heatbed | LED_0603_1608Metric | D6 |
| 1 | CUS10S30,H3F | D_SOD-323_HandSoldering | D10 |
| 5 | BAT54J,115 | D_SOD-323_HandSoldering | D11, D12, D13, D14, D15 |
| 1 | BAT60AE6327 | D_SOD-323_HandSoldering | D20 |
| 1 | SMBJ28A | D_SMB | D21 |
| 1 | SMBJ54A | D_SMB | D22 |
| 1 | 40V/1A | D_SOD-123 | D23 |
| 4 | DSK14 | D_SOD-123F | D25, D26, D27, D28 |
| 1 | 600Z | L_0805_2012Metric | FB2 |
| 1 | 33uH | L_Taiyo-Yuden_NR-60xx | L1 |
| 1 | 10uH | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L2 |
| 33 | 100n | C_0402_1005Metric | C1, C2, C5, C6, C9, C10, C13, C14 +25 |
| 10 | 47u/35V | CP_Elec_6.3x5.8 | C3, C4, C7, C8, C11, C12, C15, C16 +2 |
| 6 | 22n | C_0402_1005Metric | C26, C27, C28, C29, C30, C139 |
| 5 | 4u7 | C_0402_1005Metric | C36, C37, C38, C39, C40 |
| 28 | 1n | C_0603_1608Metric | C51, C52, C53, C54, C55, C56, C57, C58 +20 |
| 4 | 220u/63V | CP_Radial_D10.0mm_P5.00mm | C71, C89, C106, C125 |
| 16 | 100nF/100V | C_0603_1608Metric | C72, C73, C74, C75, C90, C91, C92, C93 +8 |
| 8 | 220nF | C_0603_1608Metric | C76, C77, C95, C96, C111, C112, C135, C136 |
| 2 | 470nF | C_0402_1005Metric | C82, C119 |
| 9 | 2u2 | C_0603_1608Metric | C83, C85, C100, C101, C102, C120, C123, C138 +1 |
| 24 | 100n | C_0603_1608Metric | C84, C87, C98, C99, C103, C122, C134, C140 +16 |
| 7 | 10u | C_1206_3216Metric | C86, C97, C117, C118, C121, C131, C132 |
| 2 | 22n | C_0603_1608Metric | C88, C124 |
| 2 | 12pF | C_0603_1608Metric | C104, C105 |
| 1 | 100u/25V | CP_Radial_D6.3mm_P2.50mm | C130 |
| 3 | 1u | C_0603_1608Metric | C137, C149, C157 |
| 4 | 10u | CP_EIA-3216-18_Kemet-A | C141, C142, C143, C144 |
| 1 | 4u7 | C_0603_1608Metric | C145 |
| 2 | 4.7uF | C_0805_2012Metric | C166, C167 |
| 1 | 1uF | C_0402_1005Metric | C168 |
| 7 | 10k | R_0402_1005Metric | R1, R2, R3, R4, R5, R24, R52 |
| 10 | 0.110R | R_0805_2012Metric | R6, R7, R8, R9, R10, R11, R12, R13 +2 |
| 1 | 15k | R_0603_1608Metric | R16 |
| 2 | 3k/1W | R_2512_6332Metric | R17, R19 |
| 3 | 100k | R_0603_1608Metric | R18, R21, R33 |
| 20 | 10k | R_0603_1608Metric | R20, R38, R43, R44, R49, R82, R87, R88 +12 |
| 8 | 10R | R_0402_1005Metric | R22, R23, R26, R27, R35, R36, R40, R41 |
| 2 | 7k5 | R_0603_1608Metric | R25, R28 |
| 2 | 2R2 | R_0402_1005Metric | R29, R56 |
| 8 | 47R | R_0402_1005Metric | R30, R32, R42, R46, R57, R59, R72, R75 |
| 4 | 0.075R/1W | R_2512_6332Metric | R31, R45, R58, R74 |
| 8 | 100R | R_0603_1608Metric | R34, R47, R64, R73, R78, R79, R80, R81 |
| 9 | 1k | R_0603_1608Metric | R37, R48, R60, R68, R83, R84, R85, R86 +1 |
| 2 | 100k | R_0402_1005Metric | R39, R67 |
| 8 | 22R | R_0402_1005Metric | R50, R51, R53, R54, R65, R66, R69, R70 |
| 1 | 3k6 | R_0603_1608Metric | R55 |
| 2 | 4k7 | R_0603_1608Metric | R62, R71 |
| 4 | 2k2 | R_0603_1608Metric | R76, R77, R99, R100 |
| 2 | 100R | R_0402_1005Metric | R101, R102 |
| 1 | 120R | R_0603_1608Metric | R105 |
| 1 | 40k2 | R_0402_1005Metric | R106 |
| 2 | 1R2 | R_0402_1005Metric | R107, R108 |
| 2 | 5k1 | R_0603_1608Metric | R110, R111 |
Leviathan design files
The KiCad project lives in the MotorDynamicsLab/Leviathan repository on GitHub; these links point at the commit this page was built from.
Leviathan: common questions
What microcontroller does the Leviathan use?
The Leviathan is built around the STM32H743ZIT6, from the STM32 family.
How big is the Leviathan PCB?
The Leviathan measures 170 × 100 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Leviathan?
406 components, from 117 distinct parts. The full bill of materials is listed on this page.
Where can I download the Leviathan design files?
From the MotorDynamicsLab/Leviathan repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Leviathan design in my own project?
Yes, under the terms of its GPL-3.0 license, which MotorDynamicsLab chose for the repository.
Can I test firmware for the Leviathan 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.
Earlier revisions in the repo: Leviathan
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