OpenEMS
About the OpenEMS PCB
OpenEMS is an open source STM32 PCB design by pbuchabqui, published on GitHub. It is a 2-layer board measuring 80.6 × 93.7 mm, with 239 components from 71 distinct parts.
Its main chip is the STM32H562VGT6, from the STM32 family. Other key parts include the TLE8888QK, molex_48pin_MRE, TLE9201SG, LM1117-3.3 and XC6206 3.3V. By type, the board carries 102 resistors, 64 capacitors, 34 diodes, 15 ICs, 12 connectors and 4 switches.
From the project
Cópia de trabalho a partir de rusefi/hwmicroRusEfi, adaptada ao firmware OpenEMS (STM32H562VGT6 + TLE8888-2QK**).
Cópia de trabalho a partir de rusefi/hwmicroRusEfi, adaptada ao firmware OpenEMS (STM32H562VGT6 + TLE8888-2QK**).
1. ~~MCU H562 sheet~~ ✅ mcuh562.kicadsch, INJEN=PE14 2. ~~Rework 6 pads no PCB~~ ✅ VCAP×2, VDDUSB, VSSA/VSS; enables TLE→PE14/PE3 3. Auditoria TLE vs docs/hw/tle8888pinout.md` 4. Conector AMPSEAL 35+23 vs 48-pin mRE (aberto) 5. ETB TLE9201 vs BTS7960 (aberto) 6. DRC / refill zones / Gerber
Main components on the OpenEMS
OpenEMS bill of materials (BOM)
239 components, 71 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32H562VGT6 ST | LQFP-100_14x14mm_P0.5mm | U1 |
| 1 | TLE8888QK Infineon | LQFP-100_14x14mm_P0.5mm_THERMAL | U2 |
| 1 | molex_48pin_MRE MOLEX | Molex_48_MRE | U3 |
| 1 | TLE9201SG Infineon | Infineon_PG-DSO-12-11 | U4 |
| 1 | LM1117-3.3 | SOT-223-3_TabPin2 | U5 |
| 1 | XC6206 3.3V Torex | SOT-23 | U7 |
| 4 | MCP6004 MicroChip | TSSOP-14_4.4x5mm_P0.65mm | U8, U35, U36, U46 |
| 2 | VNLD5090 | SO-8_3.9x4.9mm_P1.27mm | U9, U10 |
| 3 | MIC4427 | SOIC-8_3.9x4.9mm_P1.27mm | U31, U32, U33 |
| 1 | IPD30N06S2L-23 INFINEON | TO-252-2 | Q1 |
| 1 | 8MHz 20pF | Crystal_SMD_5032-2Pin_5.0x3.2mm | X1 |
| 1 | 32768 Hz | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | USB_B_Mini | USB-MINI-B-VERTICAL | J1 |
| 1 | Conn_02x05_Odd_Even Amphenol | PinSocket_2x05_P2.54mm_Vertical_SMD | J2 |
| 6 | Conn_01x01 | Pin_D0.7mm_L6.5mm_W1.8mm_FlatFork | J3, J5, J12, J13, J15, J17 |
| 1 | Conn_02x05_Counter_Clockwise | PinHeader_2x05_P2.54mm_Vertical_SMD | J4 |
| 1 | Micro_SD_Card_Det | microSD_HC_Molex_104031-0811 | J6 |
| 1 | TC2030 | Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J7 |
| 1 | Conn_01x06 | JST_EH_B5B-EH-A_1x05_P2.50mm_Vertical | J19 |
| 1 | Disclaimer | Off_Road_Disclaimer | G1 |
Show 51 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | High side voltage 5V 12V | SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm | JP2 |
| 2 | Net-Tie_2 | Net-Tie_2_8.5mil | NT1, NT2 |
| 2 | SW_Push | SW_SPST_CK_RS282G05A3 | SW1, SW2 |
| 2 | SW_Push | SW_Push_SPST_NO_Alps_SKRK | SW3, SW4 |
| 2 | BAV70 | SOT-23 | D1, D42 |
| 1 | PESD1CAN-UX Nexperia | SOT-23 | D2 |
| 8 | SS54 | D_SMA | D3, D4, D5, D6, D15, D20, D36, D37 |
| 2 | B5819W | D_SOD-123 | D7, D17 |
| 5 | SRV05-4 | SOT-23-6 | D13, D16, D38, D39, D40 |
| 2 | LED-GREEN | LED_0805_2012Metric | D14, D22 |
| 6 | LED-RED | LED_0603_1608Metric | D19, D28, D29, D31, D33, D35 |
| 1 | LED-RED | LED_0805_2012Metric | D21 |
| 1 | LED-BLUE | LED_0805_2012Metric | D23 |
| 1 | LED-YELLOW | LED_0805_2012Metric | D27 |
| 4 | 1N4148WS ON-SEMI | D_SOD-323 | D30, D32, D34, D43 |
| 1 | SM15T33C | D_SMC | D41 |
| 1 | FILTER Murata | R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 18 | 100nF KEMET | C_0603_1608Metric | C1, C6, C10, C13, C14, C15, C17, C18 +10 |
| 1 | 100UF 50V NICHICON | CP_Elec_8x10.5 | C2 |
| 2 | 4.7nF TDK | C_0603_1608Metric | C3, C11 |
| 2 | 470nF TDK | C_0603_1608Metric | C4, C5 |
| 3 | 10uF TDK | C_0603_1608Metric | C7, C8, C9 |
| 2 | 1nF MURATA | C_0603_1608Metric | C12, C35 |
| 16 | 100nF | C_0402_1005Metric | C16, C45, C46, C47, C48, C49, C50, C51 +8 |
| 7 | 10nF KEMET | C_0603_1608Metric | C19, C20, C29, C40, C79, C80, C82 |
| 2 | 18pF | C_0603_1608Metric | C21, C22 |
| 3 | 1uF Taiyo Yuden | C_0603_1608Metric | C23, C27, C36 |
| 4 | 2.2uF MURATA | C_0603_1608Metric | C25, C26, C41, C100 |
| 2 | 6.8pF | C_0603_1608Metric | C28, C44 |
| 1 | 22uF | C_0603_1608Metric | C39 |
| 1 | 22uF 25V Samsung | C_0805_2012Metric | C43 |
| 25 | 10K StackPole | R_0603_1608Metric | R1, R4, R6, R12, R13, R16, R38, R39 +17 |
| 1 | 0R DNP DNP | R_0603_1608Metric | R2 |
| 1 | 10K | R_0805_2012Metric | R3 |
| 16 | 6.8K | R_0603_1608Metric | R5, R26, R32, R35, R53, R55, R57, R59 +8 |
| 3 | DNP DNP | R_0402_1005Metric | R7, R11, R40 |
| 8 | 0R Uniroyal Elec | R_0603_1608Metric | R8, R21, R30, R33, R80, R81, R84, R85 |
| 4 | 4.7K StackPole | R_0603_1608Metric | R9, R42, R82, R83 |
| 1 | 1k | R_1206_3216Metric | R10 |
| 5 | 2.7k StackPole | R_0603_1608Metric | R14, R20, R23, R25, R27 |
| 4 | DNP DNP | R_0603_1608Metric | R15, R17, R18, R19 |
| 1 | 120 | R_0805_2012Metric | R22 |
| 10 | 470K | R_0402_1005Metric | R24, R31, R34, R37, R41, R52, R54, R56 +2 |
| 2 | 2.2k StackPole | R_0603_1608Metric | R28, R48 |
| 5 | 1k StackPole | R_0603_1608Metric | R29, R36, R49, R50, R51 |
| 1 | 100K StackPole | R_0603_1608Metric | R47 |
| 1 | 0R | R_0805_2012Metric | R86 |
| 6 | 100 StackPole | R_1206_3216Metric | R120, R121, R122, R123, R124, R125 |
| 1 | 39k Yageo | R_0603_1608Metric | R139 |
| 1 | 1k Bourns | R_Array_Convex_4x0603 | RN1 |
| 6 | 10k Yageo | R_Array_Convex_4x0603 | RN2, RN3, RN4, RN5, RN6, RN13 |
OpenEMS design files
The KiCad project lives in the pbuchabqui/OpenEMS repository on GitHub; these links point at the commit this page was built from.
OpenEMS: common questions
What microcontroller does the OpenEMS use?
The OpenEMS is built around the STM32H562VGT6, from the STM32 family.
How big is the OpenEMS PCB?
The OpenEMS measures 80.6 × 93.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the OpenEMS?
239 components, from 71 distinct parts. The full bill of materials is listed on this page.
Where can I download the OpenEMS design files?
From the pbuchabqui/OpenEMS repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the OpenEMS design in my own project?
The repository has no license, so all rights stay with pbuchabqui. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the OpenEMS 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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