Daveecu2
About the Daveecu2 PCB
Daveecu2 is an open source STM32 PCB design by miata-bot, published on GitHub. It is a 4-layer board measuring 160 × 117.5 mm, with 223 components from 71 distinct parts.
Its main chip is the STM32F429ZGTx, from the STM32 family. Other key parts include the MPXH6250A, VNLD5090, TC4424A, SP720 and TPS5430DDA. By type, the board carries 89 resistors, 64 capacitors, 35 diodes, 16 ICs, 7 connectors and 4 transistors.
From the project
Speeduino Mainboard designed for NA Maita chassis
4 Injectors 4 Ignitions 1 each CAM and Crank input 1 wire Idle PWM boost AC control 4 additional high current outputs SD card for logginglogging * [PLANNED] RTC w/ battery backup
Calculate R53 and R54 values for 3v3 rail ~~Convert all resistors in the sensor sheet to 0402~~ have to hand solder so don't want that small ~~Convert all capacitors in the sensor sheet to 0402~~ have to hand solder so don't want that small Condense common resistors into common values Condense common caps into common values ~~Find a USB-C connector~~ Replaced with USB Type B "printer" connector * Check if Q1 and Q2…
Main components on the Daveecu2
Daveecu2 bill of materials (BOM)
223 components, 71 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | MPXH6250A | Freescale_98ARH99066A | U1, U15 |
| 5 | VNLD5090 | SOIC-8_3.9x4.9mm_P1.27mm | U2, U3, U7, U13, U14 |
| 2 | TC4424A | SOIC-8_3.9x4.9mm_P1.27mm | U4, U5 |
| 1 | SP720 | SOIC-16_3.9x9.9mm_P1.27mm | U6 |
| 2 | TPS5430DDA | TI_SO-PowerPAD-8_ThermalVias | U8, U9 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U10 |
| 1 | TJA1051T-3 | SOIC-8_3.9x4.9mm_P1.27mm | U11 |
| 1 | STM32F429ZGTx | LQFP-144_20x20mm_P0.5mm | U12 |
| 1 | ATECC608A-SSHDA | SOIC-8_3.9x4.9mm_P1.27mm | U16 |
| 1 | AO3401A | SOT-23 | Q1 |
| 3 | 2N7002 | SOT-23 | Q2, Q3, Q4 |
| 1 | 25mhz | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | Crystal | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | CONN_BLACK | Delphi_Sicma_24_Black | J1 |
| 1 | CONN_GREY | Delphi_Sicma_24_Grey | J2 |
| 1 | SWD | TAG_TC2030-IDC-NL | J3 |
| 1 | USB_B | USB_B_Lumberg_2411_02_Horizontal | J4 |
| 1 | USB_EXT | PinHeader_1x05_P2.54mm_Vertical_SMD_Pin1Left | J5 |
| 1 | Micro_SD_Card_Det | microSD_HC_Molex_104031-0811 | J6 |
| 1 | HC-05 | PinHeader_1x06_P2.54mm_Vertical | J7 |
Show 51 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 250mA | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | Varistor | RV_Disc_D15.5mm_W3.9mm_P7.5mm | RV1 |
| 6 | 1n41001 | D_SOD-123 | D1, D2, D21, D31, D32, D33 |
| 8 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3, D4, D5, D6, D12, D13, D14, D15 |
| 5 | MM3Zxx | D_SOD-323_HandSoldering | D7, D8, D20, D34, D35 |
| 3 | B5819W | D_SOD-123 | D9, D10, D11 |
| 4 | 1N4448WS | D_SOD-323_HandSoldering | D16, D17, D18, D19 |
| 7 | ESD9B3.3ST5G | D_SOD-923 | D22, D25, D26, D27, D28, D29, D30 |
| 1 | PWR_3V_GREEN | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D23 |
| 1 | PWR_5V_RED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D24 |
| 1 | 600 @ 600MHz | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1 |
| 2 | 15u | L_Sunlord_MWSA0518_5.4x5.2mm | L1, L2 |
| 1 | 39n | L_0402_1005Metric_Pad0.77x0.64mm_HandSolder | L3 |
| 13 | 0.1uf | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C5, C6, C9, C10, C12, C13 +5 |
| 9 | 0.22uf | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4, C7, C8, C11, C15, C48, C50 +1 |
| 2 | 10u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C16, C17 |
| 2 | 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C18, C19 |
| 1 | 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C20 |
| 2 | 220u | CP_Elec_10x14.3 | C21, C22 |
| 16 | 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C23, C24, C30, C31, C32, C33, C34, C35 +8 |
| 4 | 12p | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C25, C26, C42, C52 |
| 2 | 2u2 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C27, C28 |
| 1 | 4u7 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C29 |
| 1 | 1u | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C43 |
| 1 | 10n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C44 |
| 2 | 1uf | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C45, C63 |
| 2 | 470pf | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C47, C64 |
| 1 | 10u | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C53 |
| 1 | 47u | CP_Elec_5x5.8 | C56 |
| 1 | 10u | CP_EIA-7343-20_Kemet-V_Pad2.25x2.55mm_HandSolder | C57 |
| 3 | 0.1u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C58, C59, C60 |
| 8 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R52, R55, R73, R76, R77, R78, R79 |
| 8 | null | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R4, R10, R12, R13, R38, R80 |
| 14 | 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R6, R14, R15, R16, R17, R62, R63 +6 |
| 14 | 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R8, R18, R19, R20, R21, R61, R64 +6 |
| 5 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R30, R33, R39, R40 |
| 7 | 470 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R34, R35, R37, R41, R44, R89 |
| 4 | 10 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R22, R23, R24, R25 |
| 8 | 2.4k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R26, R27, R28, R29, R69, R70, R71, R72 |
| 2 | 2.49k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R31, R36 |
| 1 | 3.9k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R32 |
| 2 | 220 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R42, R43 |
| 1 | 2.4k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R45 |
| 6 | null | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R46, R47, R49, R53, R54, R57 |
| 2 | 47 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R48, R59 |
| 2 | 4.7k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R50, R51 |
| 1 | 3.24k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R56 |
| 1 | 120 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R58 |
| 1 | 10k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R60 |
| 1 | 220 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R74 |
| 1 | 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R75 |
Daveecu2 design files
The KiCad project lives in the miata-bot/daveecu2 repository on GitHub; these links point at the commit this page was built from.
- Layoutdaveecu2.kicad_pcb
Daveecu2: common questions
What microcontroller does the Daveecu2 use?
The Daveecu2 is built around the STM32F429ZGTx, from the STM32 family.
How big is the Daveecu2 PCB?
The Daveecu2 measures 160 × 117.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Daveecu2?
223 components, from 71 distinct parts. The full bill of materials is listed on this page.
Where can I download the Daveecu2 design files?
From the miata-bot/daveecu2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Daveecu2 design in my own project?
The repository has no license, so all rights stay with miata-bot. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Daveecu2 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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