2 layers109.5 × 119.5 mm
EngineData
techie66/EngineDataLogger-EngineData
Arduino code for SleepyPi that is attached to main datalogger. Reads engine sensors.
100 parts1GPL-2.0
2 layers95 × 95 mm
Front controls
techie66/EngineDataLogger-FrontControls1Arduino code for front controls device.
- Size
- 95 × 95 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 135
- Nets
- 112
- Pads
- 431
- Tracks, vias
- 969, 84
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 16 Mar 2019
- Updated
- 16 Aug 2025
Overview
Front controls is an open-source printed circuit board by techie66, from the techie66/EngineDataLogger-FrontControls repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 95 × 95 mm with 135 parts on 112 nets, routed with 969 tracks and 84 vias.
It is built around the TJA1051T, LMR14030SDDA and G3VM-31BR, with the MCP23017-E/SO and TXB0104PW among its other parts. Its parts include 49 resistors, 21 diodes, 18 capacitors, 14 ICs and 13 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
5
TJA1051T
SOIC-8-40℃~+150℃ 2.5mA 4.5V~5.5V 5Mbps 70mA CAN Transceiver SOIC-8 CAN Transceivers ROHSNXP SemiconductorsCAN Transceivers
LMR14030SDDA
SO-8-EP-40℃~+125℃@(TJ) 1 2.5MHz 3.5A 40uA 4V~40V 800mV~28V Adjustable Buck Buck Built-in No SO-8-EP DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
G3VM-31BR
DIP-6-40℃~+110℃ 1 Set Normally Open: 1A (SPST NO) 1.5V 1000MΩ 100us 10mA 2.5kV 20mΩ 30V 5A 800us DIP-6 Solid State Relays (MOS Output) ROHSOmronSolid State Relays - MOS Output (PhotoMOS)
MCP23017-E/SO
SOIC-28-300mil-40℃~+85℃ 1.7MHz 1.8V~5.5V 16 1uA 600mV 8 8mA I2C Interrupt Output Reset function、Cascade and address expansion SOIC-28-300mil I/O Expanders ROHSMicrochip TechnologyI/O Expanders
TXB0104PW
TSSOP-14-40℃~+85℃ 1 1.2V~3.6V 1.65V~5.5V 100Mbps 4 Auto Direction Detection Bidirectional CMOS CMOS Tri-State TSSOP-14 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
README
README.mdEngine Data Logger - Front Controls
Componenents
Dependencies
- Seeed Studio CAN Library
git clone "https://github.com/Seeed-Studio/Seeed_Arduino_CAN.git" - NeoSWSerial
git clone "git@github.com:SlashDevin/NeoSWSerial.git"
License
EngineDataLogger is licensed under the GNU GPLv2. Dependencies are licensed under their respective licenses. See LICENSE for full text of GPLv2.
Parts
135| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 1k | Resistor_SMD:R_0402_1005Metric | R9, R10, R12, R14, R15, R16, R18, R19, R20, R23, R26, R29, R32, R35, R38 |
| 12 | 100k | Resistor_SMD:R_0402_1005Metric | R13, R17, R21, R22, R25, R28, R31, R34, R37, R43, R44, R47 |
| 12 | D_Schottky | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D14, D15, D16, D17, D18, D19 |
| 9 | .01uf | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C5, C6, C7, C8, C9, C10 |
| 9 | 500R | Resistor_SMD:R_0402_1005Metric | R0, R1, R2, R3, R4, R5, R6, R7, R8 |
| 9 | Conn_01x02 | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J1, J2, J3, J4, J5, J6, J7, J8, J9 |
| 9 | G3VM-31BR | G3VM-31BR:DIP762W50P254L737H485Q6 | U2, U3, U4, U5, U6, U7, U8, U9, U10 |
| 6 | 10R | Resistor_SMD:R_0402_1005Metric | R24, R27, R30, R33, R36, R39 |
| 6 | 4.7V Zener | Diode_SMD:D_SOD-323 | D8, D9, D10, D11, D12, D13 |
| 4 | 100nf | Capacitor_SMD:C_0402_1005Metric | C13, C14, C15, C16 |
| 4 | 22uF | Capacitor_SMD:C_0805_2012Metric | Cout1, Cout2, Cout3, Cout4 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H4, H5, H6, H7 |
| 2 | 33pf | Capacitor_SMD:C_0402_1005Metric | C11, C12 |
| 2 | 4k7 | Resistor_SMD:R_0603_1608Metric | R11, R45 |
| 2 | CAN | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J10, J11 |
| 2 | PWR | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | P1, P2 |
| 1 | .1uf | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 0.1uf | Capacitor_SMD:C_0402_1005Metric | Cboot1 |
| 1 | 100k 1% | Resistor_SMD:R_0402_1005Metric | Rfbt1 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R40 |
| 1 | 10uf | Capacitor_SMD:C_0805_2012Metric | Cin1 |
| 1 | 120R | Resistor_SMD:R_0402_1005Metric | R46 |
| 1 | 12Mhz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 15V standoff | Diode_SMD:D_SMB | D20 |
| 1 | 17k8 1% | Resistor_SMD:R_0402_1005Metric | Rfbb1 |
| 1 | 220nf | Capacitor_SMD:C_0805_2012Metric | Chf1 |
| 1 | 22nF | Capacitor_SMD:C_0603_1608Metric | C18 |
| 1 | 2k2 | Resistor_SMD:R_0603_1608Metric | R41 |
| 1 | 330uf | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C17 |
| 1 | 4K7 1% | Resistor_SMD:R_0402_1005Metric | R42 |
| 1 | 5.1V Zener | Diode_SMD:D_SOD-123 | D7 |
| 1 | 62K11 | Resistor_SMD:R_0603_1608Metric | R48 |
| 1 | 8.2uH, 60m | Inductor_SMD:L_Bourns_SRP7028A_7.3x6.6mm | L1 |
| 1 | 8A | Diode_SMD:D_SMC | D21 |
| 1 | Arduino_Nano_v3.x | NANO:Arduino_Nano | A1 |
| 1 | CONN_01X10 | Pin_Headers:Pin_Header_Straight_1x10 | H1 |
| 1 | Expansion | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | H3 |
| 1 | HM-10 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | H2 |
| 1 | Jumper_NO_Small | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | LMR14030SDDA | NANO:LMR14030SDDA | U11 |
| 1 | MCP23017-E/SO | Package_SO:SOIC-28W_7.5x18.7mm_P1.27mm | U13 |
| 1 | MCP2515-xSO | Package_SO:SOIC-18W_7.5x11.6mm_P1.27mm | U14 |
| 1 | TJA1051T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U15 |
| 1 | TXB0104PW | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U1 |
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Questions
How big is the Front controls PCB?
It measures 95 × 95 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Front controls use?
135 parts, built around the TJA1051T, LMR14030SDDA, G3VM-31BR and MCP23017-E/SO. 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 Front controls KiCad files?
From the techie66/EngineDataLogger-FrontControls repository on GitHub, at the commit this page was made from: the board is hardware/front_controls.kicad_pcb and its schematic hardware/REG_SW_5V_LMR140x0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Front controls design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).