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4 layers160 × 117.5 mmDaveecu2, the printed circuit board in 3D

Daveecu2

miata-bot/daveecu23

Speeduino Mainboard designed for NA Maita chassis

Full screenGitHub.kicad_pcb
Size
160 × 117.5 mm
Copper layers
4
Thickness
1.6 mm
Parts
249
Nets
151
Pads
844
Tracks, vias
2,069, 295
Pours
5
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
6 Sep 2019
Updated
7 May 2021

Overview

Daveecu2 is an open-source printed circuit board by miata-bot, from the miata-bot/daveecu2 repository on GitHub. It is a 4-layer board of 160 × 117.5 mm with 249 parts on 151 nets, routed with 2,069 tracks and 295 vias.

It is built around the TJA1051T/3/1, HC-05 and MPXH6250A6U, with the TC4424AVOA, TPS5430DDA and ATECC608A-SSHDA-T among its other parts. Its parts include 89 resistors, 64 capacitors, 35 diodes, 15 ICs and 5 connectors. It belongs with the STM32 boards of this library.

Main components

11

README

README.md

DaveECU2 Speeduino Mainboard

daveecu2.png

Features

  • 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

Schematic TODO

  • 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 can be the same part

Parts

249
QtyValueFootprintReferences
16100nCapacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolderC23, C24, C30, C31, C32, C33, C34, C35, C36, C37, C38, C39, C40, C41, C54, C61
14100kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR7, R8, R18, R19, R20, R21, R61, R64, R65, R68, R85, R86, R87, R88
141kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR5, R6, R14, R15, R16, R17, R62, R63, R66, R67, R81, R82, R83, R84
130.1ufCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC1, C2, C5, C6, C9, C10, C12, C13, C14, C46, C49, C51, C62
90.22ufCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC3, C4, C7, C8, C11, C15, C48, C50, C55
810kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1, R52, R55, R73, R76, R77, R78, R79
82.4kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR26, R27, R28, R29, R69, R70, R71, R72
8LEDLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD3, D4, D5, D6, D12, D13, D14, D15
8nullResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR2, R3, R4, R10, R12, R13, R38, R80
7470Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR11, R34, R35, R37, R41, R44, R89
7ESD9B3.3ST5GDiode_SMD:D_SOD-923D22, D25, D26, D27, D28, D29, D30
61n41001Diode_SMD:D_SOD-123D1, D2, D21, D31, D32, D33
6nullResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR46, R47, R49, R53, R54, R57
51kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR9, R30, R33, R39, R40
5MM3ZxxDiode_SMD:D_SOD-323_HandSolderingD7, D8, D20, D34, D35
5VNLD5090Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU2, U3, U7, U13, U14
410Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR22, R23, R24, R25
412pCapacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolderC25, C26, C42, C52
41N4448WSDiode_SMD:D_SOD-323_HandSolderingD16, D17, D18, D19
4MountingHole_PadMountingHole:MountingHole_4.3mm_M4_Pad_ViaH1, H2, H3, H4
30.1uCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC58, C59, C60
32N7002Package_TO_SOT_SMD:SOT-23Q2, Q3, Q4
3B5819WDiode_SMD:D_SOD-123D9, D10, D11
20.1uCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC18, C19
210uCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC16, C17
215uInductor_SMD:L_Sunlord_MWSA0518_5.4x5.2mmL1, L2
21ufCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC45, C63
22.49kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR31, R36
2220Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR42, R43
2220uCapacitor_SMD:CP_Elec_10x14.3C21, C22
22u2Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC27, C28
24.7kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR50, R51
247Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR48, R59
2470pfCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC47, C64
2MPXH6250ASensor_Pressure:Freescale_98ARH99066AU1, U15
2TC4424APackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU4, U5
2TPS5430DDAPackage_SO:TI_SO-PowerPAD-8_ThermalViasU8, U9
110kResistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR60
110nCapacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolderC44
110uCapacitor_Tantalum_SMD:CP_EIA-7343-20_Kemet-V_Pad2.25x2.55mm_HandSolderC57
110uCapacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolderC53
110uCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC20
1120Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR58
11uCapacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolderC43
12.4kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR45
1220Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR74
1250mAFuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolderF1
125mhzCrystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSolderingY1
13.24kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR56
13.9kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR32
1330Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR75
139nInductor_SMD:L_0402_1005Metric_Pad0.77x0.64mm_HandSolderL3
147uCapacitor_SMD:CP_Elec_5x5.8C56
14u7Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC29
1600 @ 600MHzInductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolderFB1
1AO3401APackage_TO_SOT_SMD:SOT-23Q1
1ATECC608A-SSHDAPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU16
1CONN_BLACKspeeduino_connector_automotive:Delphi_Sicma_24_BlackJ1
1CONN_GREYspeeduino_connector_automotive:Delphi_Sicma_24_GreyJ2
1CrystalCrystal:Crystal_SMD_3215-2Pin_3.2x1.5mmY2
1HC-05Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_VerticalJ7
1Micro_SD_Card_DetConnector_Card:microSD_HC_Molex_104031-0811J6
1PWR_3V_GREENLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD23
1PWR_5V_REDLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD24
1SP720Package_SO:SOIC-16_3.9x9.9mm_P1.27mmU6
1STM32F429ZGTxPackage_QFP:LQFP-144_20x20mm_P0.5mmU12
1SWDTC2030-IDC-NL:TAG_TC2030-IDC-NLJ3
1TJA1051T-3Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU11
1TP_3VTestPoint:TestPoint_Pad_D1.0mmTP11
1TP_5VTestPoint:TestPoint_Pad_D1.0mmTP10
1TP_A1TestPoint:TestPoint_Pad_D1.0mmTP14
1TP_A2TestPoint:TestPoint_Pad_D1.0mmTP15
1TP_A3TestPoint:TestPoint_Pad_D1.0mmTP5
1TP_A4TestPoint:TestPoint_Pad_D1.0mmTP13
1TP_BAROTestPoint:TestPoint_Pad_D1.0mmTP1
1TP_BUCK_ENTestPoint:TestPoint_Pad_D1.0mmTP18
1TP_BUCK_INTestPoint:TestPoint_Pad_D1.0mmTP21
1TP_CAMTestPoint:TestPoint_Pad_D1.0mmTP17
1TP_CLTTestPoint:TestPoint_Pad_D1.0mmTP4
1TP_CRANKTestPoint:TestPoint_Pad_D1.0mmTP16

The 235 most common of 249 parts.

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Questions

How big is the Daveecu2 PCB?

It measures 160 × 117.5 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Daveecu2 use?

249 parts, built around the TJA1051T/3/1, HC-05, MPXH6250A6U and TC4424AVOA. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Daveecu2 KiCad files?

From the miata-bot/daveecu2 repository on GitHub, at the commit this page was made from: the board is daveecu2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Daveecu2 design in my own project?

Its repository states no licence, so its author keeps all rights: ask miata-bot before reusing the design.