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0.4

speeduino·Hardware·v0.4/THT/Latest/v0.4.3d.kicad_pcb

0.4 PCB layout, top view — open source AVR/Arduino board by speeduino
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About the 0.4 PCB

0.4 is an open source AVR/Arduino PCB design by speeduino, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 127 components from 42 distinct parts.

Its main chip is the Arduino_Mega2560_Shield, from the AVR/Arduino family. Other key parts include the PPTC041LFBN-RC, SP721APP, TC4424AVPA, MPX4250AP and ULN2003. By type, the board carries 53 resistors, 27 capacitors, 16 diodes, 8 ICs, 7 connectors and 6 transistors.

From the project

Official Speeduino hardware designs

These resellers all contribute a portion of sales back to the project to allow for continued development to take place and we encourage sales through them whenever possible.

Of course, being open source, you are free to use the design files provided here to create your own hardware!

This project exists thanks to all the people who contribute, both in terms of code and testing provided. If you'd like to get involved, please have a read through Contributing and then jump on Discord to discuss things further

0.4, from the project README
From the project README

Main components on the 0.4

PPTC041LFBN-RCSP721APPTC4424AVPAMPX4250APULN2003NCV7805BTGPPTC081LFBN-RC

0.4 bill of materials (BOM)

127 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PPTC041LFBN-RC
Trig Cond Socket
IC3
2
SP721APP
SP721
U1, U3
2
TC4424AVPA
TC4424A
U2, U4
1
MPX4250AP
MPX4250
U5
1
ULN2003
U6
1
NCV7805BTG
LM2940S-5.0
U8
1
PPTC081LFBN-RC
Pololu_Breakout_DRV8825
A1
4
STP62NS04Z
Q_NMOS_GDS
Q1, Q2, Q3, Q4
2
IRLD024PBF
Q_NMOS_GDSD
Q5, Q6
2
Conn_01x05
J1, J6
1
Conn_01x06
J2
1
Conn_01x02
J3
1
SBH11-PBPC-D20-ST-BK
Conn_02x20_Counter_Clockwise
J4
1
Conn_01x04
J5
1
Conn_01x03
J8
2
0ZRP0050FF1E
Polyfuse
F1, F2
1
Ignition Voltage
JP1
2
VR-HALL
JP2, JP3
2
PULL-UP
JP4, JP5
1
Jumper_NO_Small
JP12
Show 22 more
QtyPartRefs
1
Arduino_Mega2560_Shield
XA1
8
151031SS04000
LED
D1, D2, D3, D4, D7, D8, D9, D10
6
1N914TAP
D
D5, D6, D11, D12, D13, D16
1
SB230TA
D14
1
TP6KE47A
D_TVS
D15
2
FA18X7R1H103KNU06
0.01uF
C1, C15
2
FA18X7R1E105KRU06
1uF
C2, C25
12
FA18X8R1E104KNU06
0.1uF
C3, C4, C9, C10, C11, C16, C18, C20 +4
6
FA18X8R1E224KRU06
0.22uF
C5, C6, C7, C12, C13, C14
2
FA18NP01H471JNU06
470pf
C8, C29
1
EEU-FC1H100L
10uF
C17
1
FA22X7R1E226MRU06
22uF
C19
1
EEU-FC1H470B
47uF
C21
12
MBA02040C1003FCT00
100k
R1, R2, R3, R4, R13, R14, R15, R16 +4
16
MBA02040C1001FRP00
1k
R5, R6, R7, R8, R17, R18, R21, R22 +8
9
MBA02040C2401FC100
2.4k
R9, R10, R11, R12, R23, R24, R25, R26 +1
2
MBA02040C1002FRP00
10k
R27, R45
1
MBA02040C3901FCT00
3.9k
R30
9
MBA02040C4700FRP00
470R
R31, R32, R34, R38, R39, R40, R55, R62 +1
2
MBA02040C2491FRP00
2.49k
R35, R36
1
MBA02040C1200FC100
120R
R46
1
MBA02040C2001FCT00
2k
R52

0.4 design files

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

0.4: common questions

What microcontroller does the 0.4 use?

The 0.4 is built around the Arduino_Mega2560_Shield, from the AVR/Arduino family.

How big is the 0.4 PCB?

The 0.4 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 0.4?

127 components, from 42 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 0.4 design files?

From the speeduino/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 0.4 design in my own project?

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

Can I test firmware for the 0.4 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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