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DD Compute 2

Acmex2564·Z31-DigiDash·Design/DD_Compute_2/DD_Compute_2.kicad_pcb

DD Compute 2 PCB layout, top view — open source STM32 board by Acmex2564
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About the DD Compute 2 PCB

DD Compute 2 is an open source STM32 PCB design by Acmex2564, published on GitHub. It is a 4-layer board measuring 200 × 65 mm, with 175 components from 47 distinct parts.

Its main chip is the STM32F103V8Tx, from the STM32 family. Other key parts include the 74HCT00D,653, 74HCT244D,653, 74HC165D-Q100,118, SN74LV1T34DCK and VO0631T. By type, the board carries 76 capacitors, 38 resistors, 26 ICs, 15 connectors, 8 diodes and 3 fuses.

It belongs with the displays & leds designs in this gallery.

From the project

Reverse Engineering of the 300zx (Z31) Digital Cluster & Design of replacement PCBs

Z31 digital clusters are one of, if not the best examples of this pure 1980s trend. Comprehensive instrumentation, large graphics, and gorgeous VFD illumination were a somewhat expensive option on the 300zx, as well as on Maxima, 240SX, Corvette, Celica/Supra, and a variety of other cars. As the cars languished in the transition period between "late model" and "classic", though, the digital package for the 300zx was not well liked.

Main components on the DD Compute 2

74HCT00D,65374HCT244D,65374HC165D-Q100,118SN74LV1T34DCKVO0631TSRV05-425LC020AT-E/SNTJR1443STM32F103V8TxLMV324AIDR

DD Compute 2 bill of materials (BOM)

175 components, 47 distinct parts.

QtyPartRefs
1
74HCT00D,653
U1
4
74HCT244D,653
U2, U3, U6, U7
4
74HC165D-Q100,118
U4, U21, U22, U23
3
SN74LV1T34DCK
U5, U9, U10
2
VO0631T
U13, U16
7
SRV05-4
U17, U24, U25, U26, U27, U28, U29
1
25LC020AT-E/SN
U18
1
TJR1443
U19
1
STM32F103V8Tx
U20
2
LMV324AIDR
U30, U31
1
8MHz
Y1
1
DISP. BOARD CONN 1 (1-20)
J1
1
DISP. BOARD CONN 2 (21-40)
J2
1
TRIP BOARD CONN 1 (1-10)
J3
1
TRIP BOARD CONN 2 (11-22)
J4
3
Conn_01x03
J5, J6, J7
1
POWER SUPPLY - 0349580340
J8
1
CAR INTERFACE - 0349610341 - SIG
J9
1
DISP_BOARD_CONN_3
J10
1
ISOLATED OUPTUTS & POWER
J11
Show 27 more
QtyPartRefs
1
ISOLATED INPUTS
J12
1
ODOMETER MODULE
J13
1
CAR INTERFACE - 0349610341
J14
1
SWD
J15
3
Polyfuse_Small
F1, F2, F3
1
GND
GND1
2
Peg
H1, H2
4
R
Rt1, Rt2, Rt3, Rt4
1
NTCG204AH473JT1
TH1
3
1N4148WS
D1, D2, D3
1
NUP2105L
D4
4
BAV70
D9, D10, D11, D13
58
100nF
C1, C2, C3, C4, C5, C6, C7, C8 +50
4
10n
C13, C17, C19, C25
4
47uF
C26, C27, C29, C35
5
1uF
C30, C32, C34, C36, C37
3
10nF
C33, C40, C41
2
20pF
C44, C45
1
47k
R1
1
2.2k
R2
2
1k
R3, R8
2
47k
R4, R5
2
75k 1%
R6, R9
2
35.7k 1%
R7, R10
3
100k
R11, R12, R13
1
47
R14
24
4.7k
RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN8 +16

DD Compute 2 design files

The KiCad project lives in the Acmex2564/Z31-DigiDash repository on GitHub; these links point at the commit this page was built from.

DD Compute 2: common questions

What microcontroller does the DD Compute 2 use?

The DD Compute 2 is built around the STM32F103V8Tx, from the STM32 family.

How big is the DD Compute 2 PCB?

The DD Compute 2 measures 200 × 65 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the DD Compute 2?

175 components, from 47 distinct parts. The full bill of materials is listed on this page.

Where can I download the DD Compute 2 design files?

From the Acmex2564/Z31-DigiDash repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the DD Compute 2 design in my own project?

The repository has no license, so all rights stay with Acmex2564. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the DD Compute 2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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