OpenEFI rev4
About the OpenEFI rev4 PCB
OpenEFI rev4 is an open source STM32 PCB design by Churrosoft, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 164 × 118 mm, with 257 components from 77 distinct parts.
Its main chip is the 74HC4851, from the STM32 family. Other key parts include the STM32F407VGTx, AMS1117-3.3, LT4363IMS, 25LCxxx and TC4424AVOA. By type, the board carries 95 resistors, 72 capacitors, 43 diodes, 22 ICs, 19 transistors and 2 crystals.
From the project
Coleccion de PCB y planos recomendados para montar una OpenEFI
si quieres usar otra placa basada en Arduino (Uno, Mega,DUE,etc), puedes hacerlo, pero los pcb no te serviran y capaz tengas que modificar ligeramente el codigo y el mapeo de los pines, proximamente agregare mas pcb ademas de mejorar los existentes
This source is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE.
Main components on the OpenEFI rev4
OpenEFI rev4 bill of materials (BOM)
257 components, 77 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC4851 | SOIC-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | STM32F407VGTx | LQFP-100_14x14mm_P0.5mm | U3 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U4 |
| 1 | LT4363IMS | MSOP-12_3x4mm_P0.65mm | U6 |
| 1 | 25LCxxx | SOIC-8_5.275x5.275mm_P1.27mm | U7 |
| 1 | TC4424AVOA BMP280 | Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U8 |
| 2 | LMV324 | TSSOP-14_4.4x5mm_P0.65mm | U9, U10 |
| 1 | SRV05-4 | SOT-23-6 | U11 |
| 2 | TJA1051T-3 | SOP-8_3.9x4.9mm_P1.27mm | U12, U25 |
| 1 | MIC5205-3.3YM5 | SOT-23-5 | U14 |
| 1 | REF3033 | SOT-23 | U15 |
| 1 | TPS5430DDA | TI_SO-PowerPAD-8_ThermalVias | U16 |
| 1 | L78M05ABDT-TR | TO-252-2 | U17 |
| 2 | TPL7407LAPWR | TSSOP-16_4.4x5mm_P0.65mm | U20, U22 |
| 4 | TC4424AVOA TC4424A | SOIC-8_3.9x4.9mm_P1.27mm | U21, U24, U29, U30 |
| 1 | SP720ABTG | SOP-16_3.9x9.9mm_P1.27mm | U26 |
| 11 | AO3400A | SOT-23 | Q1, Q2, Q3, Q4, Q12, Q14, Q15, Q16 +3 |
| 4 | SS8050 | SOT-23 | Q5, Q8, Q9, Q11 |
| 2 | IRLZ44N | TO-252-2 | Q6, Q7 |
| 2 | PMN30XPX | TSOP-6_1.65x3.05mm_P0.95mm | Q10, Q20 |
Show 57 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 25MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 32.768kHz | Crystal_SMD_2012-2Pin_2.0x1.2mm | Y3 |
| 1 | USB_B | USB_Mini-B_Tensility_54-00023_Vertical | J1 |
| 1 | 0ZCC0050FF2C Polyfuse | Fuse_1812_4532Metric | F1 |
| 1 | DLW21SZ900HQ2L | FIL_DLW21SZ900HQ2L | FL1 |
| 17 | SML-H12D8TT86C LED | LED_0805_2012Metric | D1, D5, D6, D7, D8, D9, D10, D12 +9 |
| 6 | 1N4148 | D_SOD-523 | D2, D3, D14, D23, D24, D25 |
| 1 | SMAJ58CA | D_SMA | D4 |
| 1 | MM3Z24VT1G | D_SOD-323 | D11 |
| 1 | 1N5819WS | D_SOD-323_HandSoldering | D15 |
| 1 | B540C-13-F | D_SMA | D26 |
| 8 | LH R974-LP-1 LED | LED_0805_2012Metric | D43, D63, D65, D67, D69, D71, D73, D75 |
| 8 | 1N4448WX-TP D | D_SOD-323_HandSoldering | D47, D64, D66, D68, D70, D72, D74, D76 |
| 1 | 10uH | L_7.3x7.3_H4.5 | L1 |
| 24 | 100nF | C_0805_2012Metric | C1, C5, C9, C10, C11, C13, C14, C15 +16 |
| 2 | 15pF | C_0805_2012Metric | C2, C3 |
| 14 | 0.22uF | C_0603_1608Metric | C4, C20, C23, C26, C29, C35, C38, C44 +6 |
| 1 | 1uF | C_0805_2012Metric | C6 |
| 2 | 2.2uF | C_0805_2012Metric | C7, C8 |
| 1 | 4.7uF | C_0805_2012Metric | C16 |
| 5 | CC0805KRX7R9BB103 0.01uF | C_0805_2012Metric | C19, C22, C31, C51, C72 |
| 2 | 47p | C_0402_1005Metric | C27, C28 |
| 3 | 47nF | C_0603_1608Metric | C33, C60, C61 |
| 1 | CC0805KRX7R9BB103 100nF | C_0805_2012Metric | C39 |
| 2 | 1u | C_0402_1005Metric | C40, C43 |
| 7 | 0.01uF | C_0805_2012Metric | C41, C52, C53, C54, C55, C56, C57 |
| 1 | 100uF ±20% 35V | CP_Elec_6.3x7.7 | C42 |
| 1 | 4700pF | C_0805_2012Metric | C47 |
| 1 | 100n | C_0402_1005Metric | C48 |
| 2 | 6.8pF | C_0805_2012Metric | C58, C59 |
| 1 | 10nF | C_0805_2012Metric | C62 |
| 1 | CC0805KKX7R7BB105 1uF | C_0805_2012Metric | C73 |
| 1 | CC0805KRX7R9BB104 0.1uF | C_0805_2012Metric | C74 |
| 1 | 120R | R_1206_3216Metric | R1 |
| 4 | 10k | R_0603_1608Metric | R2, R68, R121, R122 |
| 9 | 4.7k | R_0603_1608Metric | R3, R4, R5, R24, R25, R26, R27, R29 +1 |
| 10 | 2.49k +-1% | R_0603_1608Metric | R6, R9, R12, R15, R36, R39, R41, R43 +2 |
| 7 | ERJ-6ENF3483V 348k | R_0805_2012Metric | R7, R44, R48, R61, R63, R66, R69 |
| 13 | 470R | R_0603_1608Metric | R8, R14, R37, R38, R40, R42, R45, R56 +5 |
| 7 | RC0805FR-07180KL 180k | R_0805_2012Metric | R10, R13, R47, R55, R57, R62, R67 |
| 1 | RC0805FR-07604RL 470R | R_0603_1608Metric | R11 |
| 1 | RC0805FR-07604RL 604R | R_0805_2012Metric | R16 |
| 9 | 10k | R_0805_2012Metric | R17, R18, R49, R50, R51, R52, R53, R83 +1 |
| 1 | 1M 1/10W | R_0603_1608Metric | R19 |
| 3 | 10R 1/10W | R_0603_1608Metric | R20, R33, R73 |
| 1 | 0.01R | R_1210_3225Metric | R21 |
| 1 | 57.6K 1/10W | R_0603_1608Metric | R22 |
| 1 | 4.99K 1/10W | R_0603_1608Metric | R23 |
| 1 | RT0603BRD073K88L 3.88k | R_0603_1608Metric | R28 |
| 10 | 1k | R_0603_1608Metric | R31, R32, R34, R64, R65, R79, R80, R81 +2 |
| 1 | 100k | R_0603_1608Metric | R35 |
| 1 | RC0805FR-07180KL 2.49k +-1% | R_0603_1608Metric | R46 |
| 1 | 3.24k | R_0603_1608Metric | R70 |
| 4 | 10K 1/2W | R_1210_3225Metric | R71, R72, R116, R117 |
| 2 | 4.99K 1/2W | R_1210_3225Metric | R115, R120 |
| 4 | 1k | R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4 |
| 2 | 47k | R_Array_Convex_4x0603 | RN5, RN6 |
OpenEFI rev4 design files
The KiCad project lives in the Churrosoft/OpenEFI-PCB repository on GitHub; these links point at the commit this page was built from.
OpenEFI rev4: common questions
What microcontroller does the OpenEFI rev4 use?
The OpenEFI rev4 is built around the 74HC4851, from the STM32 family.
How big is the OpenEFI rev4 PCB?
The OpenEFI rev4 measures 164 × 118 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the OpenEFI rev4?
257 components, from 77 distinct parts. The full bill of materials is listed on this page.
Where can I download the OpenEFI rev4 design files?
From the Churrosoft/OpenEFI-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the OpenEFI rev4 design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which Churrosoft chose for the repository.
Can I test firmware for the OpenEFI rev4 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.
More boards in OpenEFI-PCB
STM32OpenEFI rev4 bkp
164 × 118 mm317 parts4LCERN-OHL-S-2.08
STM32UEFI
99 × 113 mm228 parts4LCERN-OHL-S-2.08
STM32STM32F rev3
159.6 × 99.6 mm171 parts4LCERN-OHL-S-2.08
STM32ΜEFI rev2
99.9 × 99.3 mm151 parts4LCERN-OHL-S-2.08
STM32V2
148.6 × 149.9 mm149 parts2LCERN-OHL-S-2.08
Sensors V2
15 × 11 mm12 parts2LCERN-OHL-S-2.08
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