4 layers115.5 × 96.2 mm
Closed deck x4
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
245 parts19
2 layers115.5 × 96.2 mm
Closed deck x4
OpenLogicEFI/Hardware19Hardware is based off an open source project called Speeduino by Josh Stewart.
- Size
- 115.5 × 96.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 223
- Nets
- 192
- Pads
- 677
- Tracks, vias
- 1,196, 862
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 Mar 2020
- Updated
- 19 Oct 2026
Overview
Closed deck x4 is an open-source printed circuit board by OpenLogicEFI, from the OpenLogicEFI/Hardware repository on GitHub. It is a 2-layer board of 115.5 × 96.2 mm with 223 parts on 192 nets, routed with 1,196 tracks and 862 vias.
It is built around the COS44273, CH340N and KP234, with the SRV05-4-P-T7, 74LVC1G157GV,125-JSM and AO3400A among its other parts. Its parts include 81 resistors, 51 capacitors, 23 diodes, 23 transistors and 12 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
10
COS44273
SOT23-5-40℃~+85℃ 1 1.8V 11ns 11ns 200mA 200mA 4.5V~25V 700mV MOSFET Under Voltage Protection、Overtemperature protection (OTP)、Interleaved conduction protection、Dead-time control SOT23-5 Gate Drivers ROHSCOSINEGate Drivers
CH340N
SOP-8-20℃~+70℃ 1 2Mbps 3.3V、5V USB 2.0 USB to serial SOP-8 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersKP234
DSOF-8-40℃~+125℃ 4.5V~5.5V 40Kpa~1.15bar DSOF-8 Pressure Sensors ROHSInfineon TechnologiesPressure Sensors
SRV05-4-P-T7
SOT-23-612V 1A@8/20us 3.5pF 500W@8/20us 5V 5uA 6V ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSPROTEKESD And Surge Protection (TVS/ESD)
74LVC1G157GV,125-JSM
TSOP-6-40℃~+125℃ 1.65V~5.5V 2/1 24mA 24mA 4uA 74LVC 9ns@5V,50pF Level shifting Single Supply TSOP-6 Signal Switches, Multiplexers, Decoders ROHSJSMSEMISignal Switches, Multiplexers, Decoders
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
DSK210
SOD-123FLSchottky Diodeshongjiacheng
MMSZ5232B
SOD-123Zener Diodeshongjiacheng
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
SMAJ18CA
DO-214AC(SMA)-65℃~+150℃ 13.7A@10/1000us 18V 1uA 22.1V 29.2V 400W@10/1000us Bidirectional IEC 61000-4-2、IEC 61000-4-4 TVS DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)
README
README.mdOpenLogicEFI
Formerly: DetonationEMS
OpenLogicEFI ECU's are based off an open source project called Speeduino by Josh Stewart. Currently all released boards use official Speeduino firmware. In TunerStudio set to "Board Layout" to "Speeduino 0.4"
License
All designs are released under the TAPR Open Hardware License v1.0
Documentation
-
The Official Speeduino Manual, documents and discord are the best places to start.
Parts
223| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 100nF | Capacitor_SMD:C_0402_1005Metric | C10, C11, C12, C13, C15, C21, C24, C26, C28, C29, C35, C36, C38, C41, C44, C46 +8 |
| 19 | 470r | Resistor_SMD:R_0402_1005Metric | R14, R15, R20, R21, R55, R56, R59, R68, R69, R70, R71, R72, R73, R74, R75, R76 +3 |
| 19 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23 +3 |
| 15 | 1k | Resistor_SMD:R_0402_1005Metric | R16, R17, R18, R19, R37, R44, R45, R46, R47, R52, R53, R54, R58, R88, R90 |
| 12 | DSK210 | Diode_SMD:D_SOD-123F | D2, D4, D5, D6, D7, D8, D9, D10, D11, D12, D14, D15 |
| 11 | 100k | Resistor_SMD:R_0402_1005Metric | R22, R23, R26, R27, R28, R29, R34, R35, R64, R65, R66 |
| 11 | 220nF | Capacitor_SMD:C_0402_1005Metric | C16, C30, C31, C32, C33, C34, C37, C39, C40, C42, C43 |
| 9 | 100K | Resistor_SMD:R_0402_1005Metric | R30, R31, R32, R33, R57, R60, R61, R62, R63 |
| 7 | 2.49k | Resistor_SMD:R_0402_1005Metric | R77, R80, R81, R82, R83, R84, R85 |
| 7 | 2k | Resistor_SMD:R_0402_1005Metric | R5, R38, R42, R48, R50, R89, R91 |
| 5 | 10nF | Capacitor_SMD:C_0402_1005Metric | C17, C18, C19, C20, C22 |
| 5 | LED | LED_SMD:LED_0603_1608Metric | D3, D16, D18, D20, D21 |
| 5 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP5, JP6, JP7, JP8, JP9 |
| 4 | 10r | Resistor_SMD:R_0805_2012Metric | R39, R43, R49, R51 |
| 4 | FET Bypass | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2, JP3, JP4, JP10 |
| 4 | MMSZ5232B | Diode_SMD:D_SOD-123 | D17, D22, D23, D24 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.5mm_Pad | H1, H2, H3, H4 |
| 4 | SRV05-4-P-T7 | Package_TO_SOT_SMD:SOT-23-6 | U2, U7, U8, U9 |
| 4 | STP75N04Z | Package_TO_SOT_THT:TO-220-3_Vertical | Q5, Q6, Q7, Q8 |
| 4 | TestPoint | Detonation:TestPoint_THT_D0.6mm_Drill0.3mm | TP4, TP5, TP8, TP9 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R24, R40, R87 |
| 3 | 10uF | Capacitor_SMD:C_1206_3216Metric | C1, C5, C7 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C14, C25, C27 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric | C3, C45 |
| 2 | 1k | Resistor_SMD:R_Array_Concave_4x0603 | RN1, RN2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R10, R11 |
| 2 | COS4427 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4, U5 |
| 2 | Divider Disable | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP11, JP12 |
| 1 | 100uF | Capacitor_Tantalum_SMD:CP_EIA-3528-15_AVX-H | C4 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C23 |
| 1 | 120r | Resistor_SMD:R_0603_1608Metric | R41 |
| 1 | 1N5819WS | Diode_SMD:D_SOD-323 | D13 |
| 1 | 2.2k | Resistor_SMD:R_0402_1005Metric | R25 |
| 1 | 3.9k | Resistor_SMD:R_0603_1608Metric | R36 |
| 1 | 330nF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 51k | Resistor_SMD:R_0402_1005Metric | R67 |
| 1 | 74LVC1G157GV,125 | Package_TO_SOT_SMD:TSOT-23-6 | IC6 |
| 1 | 7805 | Detonation:TO-220-SmallHeatSink | IC1 |
| 1 | BLACK | Connector_Automotive:Delphi_Sicma_24_Black | A2 |
| 1 | Breakout DRV8825 | Detonation:DVR8825-Labeled-Front | IC2 |
| 1 | CH340N | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | GREY | Connector_Automotive:Delphi_Sicma_24_Grey | A1 |
| 1 | IGN-V | Detonation:1x03-Proto | JP1 |
| 1 | Input Jumper | Detonation:PinHeader2x03_Jumper | J4 |
| 1 | KP234 | Detonation:KP234-Handsoldering | IC5 |
| 1 | LOGO | Detonation-Logos:ClosedDeck-New | G*** |
| 1 | LOGO | Detonation-Logos:open-logic-9 | G*** |
| 1 | LOGO | Detonation-Logos:usb | G*** |
| 1 | MEGA_PRO_EMBED_CH340G_{slash}_ATMEGA2560 | Detonation:Arduino_Mega_Mini_2560_SmallCrtYd_NoVin | U6 |
| 1 | Map Sensor Socket | Detonation:PinSocket 2x03 | J6 |
| 1 | Reset Control | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | S1 |
| 1 | SMAJ18CA | Diode_SMD:D_SMA | D1 |
| 1 | Serial | Detonation:2x04-2.54mm-Serial-withSilk | J2 |
| 1 | USB-S0 | Connector_JST:JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J3 |
| 1 | VR Conditioner | Detonation:Socket_VRConditioner_Corrected | J5 |
More from OpenLogicEFI/Hardware
12- 2 layers98.8 × 69.8 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
167 parts19 - 2 layers100 × 99.8 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
166 parts19 - 4 layers98.8 × 69.8 mm
SparkGapX4
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
166 parts19 - 2 layers98.8 × 69.8 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
159 parts19 - 2 layers100 × 100 mm
1.3e
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
157 parts19 - 2 layers100 × 99.8 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
152 parts19 - 2 layers100 × 100 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
142 parts19 - 2 layers100 × 100 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
141 parts19 - 2 layers100 × 100 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
136 parts19 - 2 layers98.2 × 53.3 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
104 parts19 - 2 layers98.2 × 53.3 mm
Pre Ignition
OpenLogicEFI/Hardware
Hardware is based off an open source project called Speeduino by Josh Stewart.
102 parts19
Similar boards
- 2 layers100 × 85 mm
- 2 layers116.5 × 98 mm
- 2 layers178 × 711 mm
- 4 layers61.9 × 84.4 mm
FastStepper
harp-tech/device.faststepper
A fast moving stepper motor controller device, with acceleration, jerk control, and end stop support
141 parts - 2 layers
Electrical schematic
geisel-m/NULunabotics
The repository for everything related to NU Lunabotics
23 parts5 - 4 layers200 × 50 mm
- 4 layers45 × 29.2 mm
Pocket 2.66
quintenluyten2/Pocket_2.66_E-reader_PCB
PCB for 2.13" and 2.66" E-ink displays with ESP32-C3, micro-SD card, battery management, and 3 user buttons
88 parts3 - 2 layers148 × 86.7 mm
Tune button panel
EdgeCoil/tune-button
BLE remote (ESP32-C3) that likes or playlists the current Spotify song through a companion Android app. Firmware, app, protocol and three PCBs: XIAO, four-key and JST-button.
246 parts
Questions
How big is the Closed deck x4 PCB?
It measures 115.5 × 96.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Closed deck x4 use?
223 parts, built around the COS44273, CH340N, KP234 and SRV05-4-P-T7. 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 Closed deck x4 KiCad files?
From the OpenLogicEFI/Hardware repository on GitHub, at the commit this page was made from: the board is Engine Managment/Closed Deck/Closed Deck x4/RevA3/closed-deck-x4.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Closed deck x4 design in my own project?
Its repository states no licence, so its author keeps all rights: ask OpenLogicEFI before reusing the design.