EP5 rearbox
About the EP5 rearbox PCB
EP5 rearbox is an open source STM32 PCB design by NTURacingTeam, published on GitHub. It is a 2-layer board measuring 149 × 79.5 mm, with 229 components from 106 distinct parts.
Its main chip is the STM32H562VGTx, from the STM32 family. Other key parts include the MCP6C04T-100E/CHY, LMR14050SDDAR, LD39100PU33RY, TCAN1057AVDRQ1 and LMR50410Y3FQDBVRQ1. By type, the board carries 75 resistors, 70 capacitors, 26 connectors, 18 diodes, 15 ICs and 7 inductors.
From the project
kicad files
- symbol - SamacSysParts: gitroot/EP5/ProjectLibraryEP5/SamacSysParts.kicadsym - nturtkicadlib: gitroot/EP5/ProjectLibraryEP5/nturtkicadlib.kicadsym - footprint - SamacSysParts: gitroot/EP5/ProjectLibraryEP5/SamacSysParts.pretty - nturtkicadlib: gitroot/EP6/ProjectLibraryEP5/nturtkicadlib.pretty
Main components on the EP5 rearbox
EP5 rearbox bill of materials (BOM)
229 components, 106 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | MCP6C04T-100E/CHY MCP6C04T-100E_CHY | SOT95P280X145-6N | IC1, IC3 |
| 1 | LMR14050SDDAR | SOIC127P600X170-9N | IC2 |
| 1 | LD39100PU33RY | SON95P300X300X90-7N-D | IC4 |
| 1 | TCAN1057AVDRQ1 | SOIC127P600X175-8N | IC5 |
| 1 | LMR50410Y3FQDBVRQ1 | SOT95P280X145-6N | IC6 |
| 1 | STM32H562VGTx | LQFP-100_14x14mm_P0.5mm | U1 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U2 |
| 1 | LM2903 | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 2 | MAX487E | SOIC-8_3.9x4.9mm_P1.27mm | U4, U5 |
| 2 | 74HC595 | SOIC-16_3.9x9.9mm_P1.27mm | U6, U7 |
| 2 | SM420561N | 7SegmentLED_LTS6760_LTS6780 | U8, U9 |
| 1 | SI3407 | SOT-23-3 | Q1 |
| 1 | 24MHz | Crystal_C38-LF_D3.0mm_L8.0mm_Vertical | Y1 |
| 1 | 32.768kHz | Crystal_C38-LF_D3.0mm_L8.0mm_Vertical | Y2 |
| 1 | JTAG | IDC-Header_2x05_P2.00mm_Vertical | J1 |
| 1 | MSD-4-A | MSD4A | J2 |
| 1 | USB_OTG | USB_Micro-B_Wuerth_629105150521 | J3 |
| 1 | LVBattery | AMASS_XT60PW-M_1x02_P7.20mm_Horizontal | J4 |
| 1 | GLVMS | JST_VH_B2P-VH_1x02_P3.96mm_Vertical | J5 |
| 1 | GPVMP | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J6 |
Show 86 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 24V_noisy1 | Molex_KK-396_A-41791-0002_1x02_P3.96mm_Vertical | J7, J8, J9 |
| 1 | 24V_raw | Molex_KK-396_A-41791-0002_1x02_P3.96mm_Vertical | J10 |
| 1 | 5V external | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J12 |
| 1 | USBC_RPI_5VOnly | USB_C_Receptacle_GCT_USB4135-GF-A_6P_TopMnt_Horizontal | J13 |
| 1 | USBA_RPI_5Vonly | USB_A_Molex_67643_Horizontal | J14 |
| 1 | fan1 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J15 |
| 1 | fan2 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J16 |
| 1 | UPS_cap | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J17 |
| 1 | 5Vout | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J18 |
| 1 | Rpi | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J19 |
| 1 | GPS_UART | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J20 |
| 1 | 3V3out | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J21 |
| 1 | CAN_termination | PinHeader_2x02_P2.54mm_Vertical | J22 |
| 1 | CAN | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J23 |
| 1 | left connector | IDC-Header_2x08_P2.54mm_Vertical | J24 |
| 1 | rear_connector | IDC-Header_2x08_P2.54mm_Vertical | J25 |
| 1 | buzzer | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J26 |
| 1 | I2C | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J27 |
| 1 | LSM6DSOXTR LSM6DSO32 | LGA-14_1 | AC1 |
| 1 | 1056 | BAT_1056 | BT1 |
| 1 | main fuse box | Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_Open | F1 |
| 1 | 3A | Fuse_2512_6332Metric_Pad1.52x3.35mm_HandSolder | F2 |
| 1 | 2.5A | Fuse_2512_6332Metric_Pad1.52x3.35mm_HandSolder | F3 |
| 1 | 1A | Fuse_1206_3216Metric | F4 |
| 2 | ACM12V-351-2PL-TL00 | ACM12V3512PLTL00 | FL1, FL2 |
| 1 | T_VCC | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | 5VonBoard | SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm | JP2 |
| 1 | LSM6D_addr | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | 100R | Potentiometer_Vishay_T73YP_Vertical | RV1 |
| 1 | BOOT0 | PinHeader_1x03_P2.54mm_Vertical | SW1 |
| 1 | VBUS | PinHeader_1x03_P2.54mm_Vertical | SW2 |
| 1 | NRST | PinHeader_1x03_P2.54mm_Vertical | SW3 |
| 3 | VSSAF5L45HM3_A/H 45V 3A (VSSAF5L45HM3_A_H) | SODFL5226X100N | D1, D10, D11 |
| 1 | RED 24VpreFuse | LED_0603_1608Metric | D2 |
| 1 | zener 30V | D_MiniMELF | D3 |
| 1 | RED 24V | LED_0603_1608Metric | D4 |
| 1 | SMBJP6KE33A-TP | DIOM5336X262N | D5 |
| 1 | RED 5Vext | LED_0603_1608Metric | D6 |
| 1 | RED 5V | LED_0603_1608Metric | D7 |
| 1 | zener 5.6V | D_MiniMELF | D8 |
| 1 | RED 3V3 | LED_0603_1608Metric | D9 |
| 1 | APPS micro | LED_0603_1608Metric | D12 |
| 1 | brake micro | LED_0603_1608Metric | D13 |
| 1 | GREEN CANopen_RUN | LED_0603_1608Metric | D14 |
| 1 | RED CANopen_ERR | LED_0603_1608Metric | D15 |
| 2 | 1N4148 | D_MiniMELF | D16, D17 |
| 1 | brake light | LED_0603_1608Metric | D18 |
| 3 | FerriteBead | L_0805_2012Metric | FB1, FB2, FB3 |
| 1 | 1.5uH 10A (SRP6530A-1R5M) | SRR6040A180M | L1 |
| 1 | 18uH 1.5A (SRR6040A-180M) | SRR6040A180M | L2 |
| 1 | 22uH 4A (SRR1260A-220M) | SRR1260A220M | L3 |
| 1 | 10uH 2A (SRN3012BTA-100M) | SRN3012BTA100M | L4 |
| 2 | 2u2 16V | C_0603_1608Metric | C1, C3 |
| 2 | 10u 6V | C_0603_1608Metric | C2, C10 |
| 20 | 0u1 | C_0603_1608Metric | C4, C5, C6, C7, C8, C9, C15, C38 +12 |
| 5 | 1u | C_0603_1608Metric | C11, C67, C68, C69, C70 |
| 2 | 20p | C_0603_1608Metric | C12, C13 |
| 2 | ?p | C_0603_1608Metric | C14, C16 |
| 6 | 1u 16V | C_0603_1608Metric | C17, C18, C48, C49, C51, C53 |
| 11 | 10u 35V | C_1206_3216Metric | C19, C20, C22, C23, C25, C26, C46, C52 +3 |
| 4 | 220u 35V | CP_Radial_D8.0mm_P3.80mm | C21, C24, C33, C47 |
| 1 | 10n | C_0603_1608Metric | C27 |
| 7 | 10u 16V | C_0805_2012Metric | C28, C29, C30, C32, C34, C36, C37 |
| 1 | 1n | C_0603_1608Metric | C31 |
| 1 | 470u 16V | CP_Radial_D8.0mm_P3.80mm | C35 |
| 4 | 330p | C_0603_1608Metric | C41, C42, C56, C57 |
| 2 | 220p | C_0603_1608Metric | C44, C66 |
| 12 | 1k | R_0603_1608Metric | R1, R18, R19, R29, R33, R40, R45, R46 +4 |
| 15 | 10k | R_0603_1608Metric | R2, R8, R9, R15, R16, R21, R22, R28 +7 |
| 5 | 4k7 | R_0603_1608Metric | R3, R4, R5, R6, R7 |
| 1 | 47k5 | R_0805_2012Metric | R10 |
| 1 | 5k9 | R_0805_2012Metric | R11 |
| 2 | 3m | R_1206_3216Metric | R12, R23 |
| 1 | 270k | R_0805_2012Metric | R13 |
| 1 | 100k | R_0805_2012Metric | R14 |
| 1 | 10M | R_0603_1608Metric | R17 |
| 1 | 510R | R_0603_1608Metric | R20 |
| 2 | 56k | R_0603_1608Metric | R24, R25 |
| 1 | 270k 1% | R_0603_1608Metric | R26 |
| 1 | 47k 1% | R_0603_1608Metric | R27 |
| 18 | 150R | R_0603_1608Metric | R35, R36, R50, R51, R52, R53, R54, R55 +10 |
| 4 | 60R | R_0603_1608Metric | R37, R38, R72, R73 |
| 3 | 100k | R_0603_1608Metric | R39, R66, R67 |
| 2 | 5.1R 1/4W | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R41, R42 |
| 2 | 120R 1% | R_0805_2012Metric | R43, R44 |
| 2 | 3k3 | R_0603_1608Metric | R69, R70 |
EP5 rearbox design files
The KiCad project lives in the NTURacingTeam/nturt_kicad repository on GitHub; these links point at the commit this page was built from.
EP5 rearbox: common questions
What microcontroller does the EP5 rearbox use?
The EP5 rearbox is built around the STM32H562VGTx, from the STM32 family.
How big is the EP5 rearbox PCB?
The EP5 rearbox measures 149 × 79.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the EP5 rearbox?
229 components, from 106 distinct parts. The full bill of materials is listed on this page.
Where can I download the EP5 rearbox design files?
From the NTURacingTeam/nturt_kicad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EP5 rearbox design in my own project?
The repository has no license, so all rights stay with NTURacingTeam. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the EP5 rearbox 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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