HardLabs

Digifant2-pruefstand

designer2k2·digifant2-pruefstand·board/digifant2-pruefstand.kicad_pcb

Digifant2-pruefstand PCB layout, top view — open source RP2040/RP2350 board by designer2k2
Simulate this board

About the Digifant2-pruefstand PCB

Digifant2-pruefstand is an open source RP2040/RP2350 PCB design by designer2k2, published on GitHub under the MIT license. It is a 2-layer board measuring 144 × 150 mm, with 73 components from 46 distinct parts.

Its main chip is the Raspberry Pi Pico, from the RP2040/RP2350 family. Other key parts include the C49851, C108207, AD9833 and TS5A3159A. By type, the board carries 22 resistors, 14 test points, 10 capacitors, 8 ICs, 4 transistors and 4 connectors.

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

From the project

Automated test bench for the VW Digifant-2 ECU: Raspberry Pi Pico signal simulator and capture board (KiCad + firmware)

Hardware for a fully-automated test bench for the VW Golf 1 Cabrio Digifant-2 ECU: signal simulator + capture front-end, driven by a Raspberry Pi Pico, with a high-side load switch so the bench can cold-boot the ECU and cut power on overcurrent. Scope here is the Signal-Simulator + Erfassungseinheit only — the EPROM emulator is a separate future board.

The schematic is generated from Python with circuit-synth; the PCB is placed and autorouted headless (pcbnew + Freerouting).

Main components on the Digifant2-pruefstand

C49851C108207AD9833Raspberry Pi PicoTS5A3159A

Digifant2-pruefstand bill of materials (BOM)

73 components, 46 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C49851
INA226 (0x40)
U1
1
C108207
MCP4728 (0x60)
U2
1
C49851
INA226 (0x41)
U3
1
AD9833
U4
1
Raspberry Pi Pico
U5
3
TS5A3159A
U6, U7, U8
3
2N7002
Q1, Q3, Q5
1
C141584
P-MOS -30V >=5A
Q2
1
25MHz
Y1
1
VW ECU HARNESS
J0
1
12V BENCH IN
J1
1
IDLE VALVE N71
J2
1
OLED / UI I2C
J3
1
3A
F1
1
100R
RG1
1
1k
RPU1
1
0.02R 1% shunt
RS1
1
0.033R 1% shunt
RS2
3
PUSH
SW1, SW2, SW3
1
KNOCK OUT (to VW-4)
TP1
Show 26 more
QtyPartRefs
1
KNOCK GND (to VW-5)
TP2
1
CRANK
TP3
1
IDLE SW
TP4
1
IGNITION
TP5
1
INJECTOR
TP6
1
SPI CS
TP7
1
SPI SCK
TP8
1
SPI MOSI
TP9
1
I2C SDA
TP10
1
I2C SCL
TP11
1
LED DATA
TP12
1
+12V ECU
TP13
1
+12V SW
TP14
1
SS54
D1
1
SK6812
D2
1
100uF/25V
C1
8
100NF
100nF
C2, C4, C5, C6, C7, C8, C9, C10
1
10NF
10nF
C3
3
220R
R2, R3, R4
3
1k
R5, R10, R15
3
4.7K
4.7k
R6, R7, R14
3
10K
10k
R8, R13, R21
3
330R
R9, R11, R17
1
200R
R12
5
100K
100k
R16, R19, R22, R23, R24
1
20K
20k
R20

Digifant2-pruefstand design files

The KiCad project lives in the designer2k2/digifant2-pruefstand repository on GitHub; these links point at the commit this page was built from.

Digifant2-pruefstand: common questions

What microcontroller does the Digifant2-pruefstand use?

The Digifant2-pruefstand is built around the Raspberry Pi Pico, from the RP2040/RP2350 family.

How big is the Digifant2-pruefstand PCB?

The Digifant2-pruefstand measures 144 × 150 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Digifant2-pruefstand?

73 components, from 46 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 Digifant2-pruefstand design files?

From the designer2k2/digifant2-pruefstand repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Digifant2-pruefstand design in my own project?

Yes, under the terms of its MIT license, which designer2k2 chose for the repository.

Can I test firmware for the Digifant2-pruefstand without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

Similar boards