HardLabs

Rnvm lisa

jaromir-sukuba·nvm·hardware/PCB-design_files/LISA/rnvm_lisa.kicad_pcb

Rnvm lisa PCB layout, top view — open source AVR/Arduino board by jaromir-sukuba

About the Rnvm lisa PCB

Rnvm lisa is an open source AVR/Arduino PCB design by jaromir-sukuba, published on GitHub. It is a 2-layer board measuring 132 × 28 mm, with 45 components from 24 distinct parts.

Its main chip is the AT90S4433, from the AVR/Arduino family. Other key parts include the W5500_breakout, SN75ALS160DW, 74HCT08PW.112, SN75ALS161DW and CH340G. By type, the board carries 18 resistors, 12 capacitors, 6 ICs, 5 connectors, 2 crystals and 2 diodes.

It belongs with the test & measurement designs in this gallery.

From the project

Open source nanovoltmeter

Please note this nanovoltmeter design was superseded by a new and better design, which will go public in this Github repository. Soon(TM)

Okay, I think I can do this. On the other hand, any reasonable mains-powered voltmeter has to have an isolated PSU section which powers the input dividers/amplifiers and ADC, so that the measurement potential could be unrelated to the digital section with all the user and communication IO - which is needed to be earthed or somewhere close to that potential. This one calls for either DC or AC power, but it could be combined by having a PSU operating from an…

Main components on the Rnvm lisa

W5500_breakoutSN75ALS160DWAT90S443374HCT08PW.112SN75ALS161DWCH340G

Rnvm lisa bill of materials (BOM)

45 components, 24 distinct parts.

QtyPartRefs
1
W5500_breakout
U1
1
SN75ALS160DW
75ALS160
U2
1
AT90S4433
U3
1
74HCT08PW.112
74HCT08
U4
1
SN75ALS161DW
75ALS161
U5
1
CH340G
U6
1
7.372M-SMDHC49S
7.3728MHz
Y1
1
12.00M-SMDHC49S
12MHz
Y2
1
Centronics 24, socket
J1
1
75869-331LF
IDC_6pin
J2
1
NS25-W2P
Conn_01x02_Male
J3
1
TUEB4F2D0B
USB_B
J4
1
T821-1-16-S1
IDC_16
J5
1
BAV99
D1
1
SM6T6V8A
D2
1
T491C107K010AT
100u
C1
6
CL21B105KAFNNNG
1u
C2, C3, C6, C7, C8, C9
4
VJ0805A220JXACW1BC
22p
C4, C5, C11, C12
1
VJ0805Y471KXACW1BC
470p
C10
5
MMA02040C1203
12k
R1, R5, R6, R9, R12
Show 4 more
QtyPartRefs
3
MMA02040C1200
120R
R2, R3, R4
4
MMA02040C2402
2k4
R7, R13, R15, R16
5
MMA02040C3902
3k9
R8, R11, R14, R17, R18
1
MMA02040C3903
39k
R10

Rnvm lisa design files

The KiCad project lives in the jaromir-sukuba/nvm repository on GitHub; these links point at the commit this page was built from.

Rnvm lisa: common questions

What microcontroller does the Rnvm lisa use?

The Rnvm lisa is built around the AT90S4433, from the AVR/Arduino family.

How big is the Rnvm lisa PCB?

The Rnvm lisa measures 132 × 28 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rnvm lisa?

45 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rnvm lisa design files?

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

Can I use the Rnvm lisa design in my own project?

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

Can I test firmware for the Rnvm lisa 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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