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1.3

OpenLogicEFI·Hardware·Engine Managment/1.x/v1.3/1.3e/1.3.kicad_pcb

1.3 PCB layout, top view — open source AVR/Arduino board by OpenLogicEFI

About the 1.3 PCB

1.3 is an open source AVR/Arduino PCB design by OpenLogicEFI, published on GitHub. It is a board measuring 100 × 100 mm, with 156 components from 52 distinct parts.

Its main chip is the Arduino_Mega2560_Shield-Arduino, from the AVR/Arduino family. Other key parts include the L7805CDT, TC4427, SRV05-4-P-T7, ULN2003A and Pololu_Breakout_DRV8825. By type, the board carries 64 resistors, 31 capacitors, 16 diodes, 11 connectors, 8 ICs and 8 transistors.

From the project

Hardware is based off an open source project called Speeduino by Josh Stewart.

Main components on the 1.3

L7805CDTTC4427SRV05-4-P-T7ULN2003APololu_Breakout_DRV8825

1.3 bill of materials (BOM)

156 components, 52 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
L7805CDT
IC1
2
TC4427
U1, U2
4
SRV05-4-P-T7
U3, U4, U5, U6
1
ULN2003A
U7
1
Pololu_Breakout_DRV8825
A1
4
AO3400A
Q1, Q2, Q3, Q4
4
STP62/75
Q5, Q6, Q7, Q8
1
Conn_02x20_Counter_Clockwise
J1
1
Conn_01x04
J2
2
Conn_02x16_Counter_Clockwise
J3, J7
1
VR_Header
J4
4
Conn_01x02
J5, J6, J10, J11
1
Screw_Terminal_01x02
J8
1
Conn_02x04_Counter_Clockwise
J9
1
Logo_Open_Hardware_Small
G1
1
Logo_Open_Hardware_Small
G2
1
Logo_Open_Hardware_Small
G3
1
Logo_Open_Hardware_Small
G4
1
Ignition Voltage
JP1
2
VR-Hall
JP2, JP3
Show 32 more
QtyPartRefs
2
Pullup
JP4, JP5
1
Jumper_3_Bridged12
JP7
1
Map
Map1
1
MOV
RV1
1
Arduino_Mega2560_Shield-Arduino
XA1
4
LED Blue
IGN1, IGN2, IGN3, IGN4
1
SS34
D1
9
1N4148WS
D2, D3, D4, D5, D8, D11, D12, D15 +1
2
LED Green
D6, D7
4
LED Blue
D9, D10, D13, D14
1
10uF
C1
1
330nf
C2
1
47uF
C3
1
100nF
C4
11
100nF
C5, C7, C10, C11, C17, C18, C19, C22 +3
3
1uF
C6, C8, C13
1
4.7nF
C9
2
47pF
C12, C33
8
220nF
C14, C15, C20, C21, C24, C25, C28, C29
2
10nF
C16, C31
12
100k
R1, R2, R9, R10, R17, R18, R21, R22 +4
15
1k
R3, R4, R11, R12, R19, R20, R23, R24 +7
5
2.4k
R5, R6, R13, R14, R36
4
10
R7, R8, R15, R16
14
470
R25, R26, R32, R33, R34, R38, R39, R42 +6
2
51k
R27, R64
1
3.9k
R29
2
2.49k
R37, R41
2
10k
R46, R57
4
120
R48, R50, R52, R54
2
220
R55, R63
1
2k
R59

1.3 design files

The KiCad project lives in the OpenLogicEFI/Hardware repository on GitHub; these links point at the commit this page was built from.

1.3: common questions

What microcontroller does the 1.3 use?

The 1.3 is built around the Arduino_Mega2560_Shield-Arduino, from the AVR/Arduino family.

How big is the 1.3 PCB?

The 1.3 measures 100 × 100 mm and is 1.6002 mm thick.

How many components are on the 1.3?

156 components, from 52 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 1.3 design files?

From the OpenLogicEFI/Hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the 1.3 design in my own project?

The repository has no license, so all rights stay with OpenLogicEFI. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 1.3 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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