2 layers109 × 71 mm
2 layers63 × 80 mm
BrakeOutBoard
gmoccapy/T4-MFA9This is a color MFA designed to be used in a Volkswagen T4 Van
- Size
- 63 × 80 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 93
- Pads
- 265
- Tracks, vias
- 675, 10
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Jan 2025
- Updated
- 4 Jun 2026
Overview
BrakeOutBoard is an open-source printed circuit board by gmoccapy, from the gmoccapy/T4-MFA repository on GitHub. It is a 2-layer board of 63 × 80 mm with 65 parts on 93 nets, routed with 675 tracks and 10 vias.
It is built around the SN65HVD230DR, LTV-847 and EL817(B)-F, with the S3MB, K15 and K31 among its other parts. Its parts include 18 resistors, 6 ICs, 3 switches, 2 capacitors and 2 diodes.
Main components
8
SN65HVD230DR
SOP-8CAN TransceiversTokmas
LTV-847
DIP-16-30℃~+110℃ 1.2V 100mV@20mA,1mA 200mW 35V 3us 4 4us 50% 50mA 50mA 5kV 600% 6V DC Phototransistor DIP-16 Transistor, Photovoltaic Output Optoisolators ROHSLite-OnTransistor, Photovoltaic Output Optoisolators
EL817(B)-F
DIP-4-55℃~+110℃ 1 1.2V 100mV@20mA,1mA 18us 18us 200mW 35V 50mA 5kV 60mA 6V DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSEverlight ElectronicsTransistor, Photovoltaic Output Optoisolators
S3MB
SMBDiodes - General PurposehongjiachengK15
-Switch Accessories / CapsCarlo Gavazzi Computing Solutions
K31
插件,P=3.7mm188℃ 2.3mm 218℃ 221℃ 250V 250℃ 2A 3.7mm 5.8mm K Plug-in 插件,P=3.7mm Thermal Fuses (TCO) ROHSSETsafe | SETfuseThermal Fuses (TCO)
LBSS84LT1G
SOT-23-55℃~+150℃ 1 P-Channel 10pF 10Ω@5V 130mA 225mW 2V 30pF 50V 5pF 6nC P-Channel SOT-23 MOSFETs ROHSLeshan Radio (LRC)MOSFETs
MMDT3904
SOT-363-55℃~+150℃ 100 2 NPN 200mA 200mV 200mW 300MHz 40V 50nA 6V NPN SOT-363 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)
README
README.mdT4-MFA is a projekt to customize the Dash Board from an Volkswagen T4 Van with a color MFA (Multi Function Diaplay)
It is based on a ESP32S-Dev Kit C V4 with 512 kB SRAM and 4 MB Flash The used display is an 3,5 Inch RPI Display with 480x320 Pixel The connections from the display need to be modified The CAN connections are done with a WCMCU-230 Modul (R2 has to be removed) Power Control is solved with a 12V USB Car Adapter (the mainboard from the adapter has been used) The connections are done to a self desgned brake out board Some soldering on the Dash Board Instrument has to be done
The fixture of the display has been solved with a 3d printed part.
Please take care to use ARDUINO IDE 2.XX to programm the ESP You will need to use following libraries
- ESP32 library 2.0.17 Do not use newer one as the newer ones are not supported by the TFT_eSPI library
- TFT_eSPI 2.5.43
- ESP32-TWAI-CAN 1.0.1
Feel free to submit improvements
Electronics and Software Code may be buggy. If you use the code or the hardware mentioned in this repository, you are responsible to check against you local law. I designed this for my own use. I assume no liability for damages resulting from the use of my software or hardware design.
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10kΩ | PCM_JLCPCB:R_0603 | R1, R14, R15, R16 |
| 4 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | Hole_1, Hole_2, Hole_3, Hole_4 |
| 3 | 10kΩ | PCM_JLCPCB:R_0603x4 | R9, R10, R13 |
| 3 | 4.7kΩ | PCM_JLCPCB:R_0603x4 | R7, R8, R11 |
| 3 | LTV-847 | Package_DIP:DIP-16_W7.62mm | U1, U2, U3 |
| 2 | 100kΩ | PCM_JLCPCB:R_0603 | R3, R5 |
| 2 | 100nF | PCM_JLCPCB:C_0402 | C1, C2 |
| 2 | 4,7k | PCM_JLCPCB:R_0603 | R17, R18 |
| 2 | Conn_01x19_Socket | Connector_PinSocket_2.54mm:PinSocket_1x19_P2.54mm_Vertical | J1, J2 |
| 2 | S3MB | PCM_JLCPCB:D_SMB | D1, D2 |
| 1 | 220kΩ | PCM_JLCPCB:R_0603 | R2 |
| 1 | 220Ω | PCM_JLCPCB:R_0603 | R6 |
| 1 | 33kΩ | PCM_JLCPCB:R_0603 | R4 |
| 1 | 4.7kΩ | PCM_JLCPCB:R_0603 | R12 |
| 1 | BME280_conn | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | BME_280 |
| 1 | BrakeFluid | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | BF |
| 1 | BrakePads | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | BP |
| 1 | Can_H | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | CAN_H |
| 1 | Can_L | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | CAN_L |
| 1 | Coolant | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | Cool |
| 1 | Door_R | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | RD |
| 1 | Door_S | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | SD |
| 1 | EL817(B)-F | JLCPCB:DIP-4_L6.5-W4.6-P2.54-LS7.6-BL-1 | U4 |
| 1 | GPS Modul expansion port | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | GPS |
| 1 | K15 | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | K15 |
| 1 | K30 | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | K30 |
| 1 | K31 | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | K3 |
| 1 | LBSS84LT1G | PCM_JLCPCB:Q_SOT-23 | Q1 |
| 1 | MCP23017_ML | Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | U6 |
| 1 | MMDT3904 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | Q2 |
| 1 | Memory | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | MEM1 |
| 1 | Mode | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | MODE1 |
| 1 | MotorCap | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | MC |
| 1 | O_Lev_LED | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | OL_LED |
| 1 | OilPresure | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | OP |
| 1 | Reset | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | RESET1 |
| 1 | SN65HVD230DR | PCM_JLCPCB:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL | U5 |
| 1 | TFT_5V | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | 5V |
| 1 | TFT_CS | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | CS |
| 1 | TFT_DC | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | DC |
| 1 | TFT_GND | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | GND |
| 1 | TFT_MOSI | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | MOSi |
| 1 | TFT_RST | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | RST |
| 1 | TFT_SLK | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | SLK |
| 1 | To USB converter | Custom:PHOENIX_1729128_2x2,54 | USB_OUT1 |
| 1 | Trunk | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | TR |
| 1 | WhiperWater | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | WW |
| 1 | oilSensor | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | OS |
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Questions
How big is the BrakeOutBoard PCB?
It measures 63 × 80 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BrakeOutBoard use?
65 parts, built around the SN65HVD230DR, LTV-847, EL817(B)-F and S3MB. 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 BrakeOutBoard KiCad files?
From the gmoccapy/T4-MFA repository on GitHub, at the commit this page was made from: the board is Hardware/KICAD_MFA_V5/BrakeOutBoard.kicad_pcb and its schematic Hardware/KICAD_MFA_V5/BME_280.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BrakeOutBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask gmoccapy before reusing the design.