HardLabs

Testbench

rcapaverde·cubo·pcb_v2/testbench/testbench.kicad_pcb

Testbench PCB layout, top view — open source AVR/Arduino board by rcapaverde

About the Testbench PCB

Testbench is an open source AVR/Arduino PCB design by rcapaverde, published on GitHub. It is a 2-layer board measuring 274.3 × 124.5 mm, with 68 components from 43 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the 74LS574, 74LS244, LM7805, 74HC238 and 74LS138. By type, the board carries 17 resistors, 15 connectors, 12 capacitors, 7 ICs, 7 diodes and 5 switches.

From the project

Arquitetura de processador conceitual

Main components on the Testbench

74LS57474LS244LM780574HC23874LS138Arduino_Nano_v3.x

Testbench bill of materials (BOM)

68 components, 43 distinct parts.

QtyPartRefs
2
74LS574
U1, U2
1
74LS244
U3
1
LM7805
U4
2
74HC238
U5, U6
1
74LS138
U7
1
Arduino_Nano_v3.x
A1
3
IRF540N
Q1, Q2, Q3
1
test_A
J1
1
test_B
J2
1
sub_0
J3
1
sub_8
J4
1
sub_16
J5
1
sub_24
J6
1
sub_32
J7
1
sub_40
J8
1
INA226
J9
1
test_C1
J10
1
test_C2
J11
1
test_C3
J12
1
lcd
J15
Show 23 more
QtyPartRefs
1
DEBUG
J17
1
power_jack
J18
1
10K
RV1
1
LEFT
SW1
1
RIGHT
SW2
1
OK
SW3
1
BACK
SW4
1
ON/OFF
SW5
1
POWER
D4
1
NARROW
D5
1
WIDE
D6
1
HEADER
D7
1
RUN
D8
1
ERROR
D9
1
1N4001
D10
10
100nF
C1, C2, C3, C5, C6, C7, C8, C9 +2
1
0.33uF
C12
1
0.1uF
C13
3
10R
R1, R3, R5
3
10K
R2, R4, R6
1
220R
R7
4
4K7
R8, R9, R10, R11
6
470R
R12, R13, R14, R15, R16, R17

Testbench design files

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

Testbench: common questions

What microcontroller does the Testbench use?

The Testbench is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the Testbench PCB?

The Testbench measures 274.3 × 124.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Testbench?

68 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the Testbench design files?

From the rcapaverde/cubo repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Testbench design in my own project?

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

Can I test firmware for the Testbench 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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