HardLabs

CozScan2020

cozdas·CozScan2020·KiCad/Keithley_20ChanSSR/Keithley_20ChanSSR.kicad_pcb

CozScan2020 PCB layout, top view — open source AVR/Arduino board by cozdas

About the CozScan2020 PCB

CozScan2020 is an open source AVR/Arduino PCB design by cozdas, published on GitHub under the BSD-3-Clause license. It is a 2-layer board measuring 201.9 × 68.6 mm, with 77 components from 7 distinct parts.

Its main chip is the Arduino_Micro, from the AVR/Arduino family. Other key parts include the TLP3558. By type, the board carries 45 ICs, 26 resistors, 5 connectors and 1 capacitor.

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

From the project

A 20-Channel Do-It-Yourself Scanning Card for Keithley DMMs and DAQs

This is a do-it-yourself 20-channel solid-state scanner card compatible with Keithley 2000-SCAN-20 and thus should work with Keithley 2000, 2001, 2002, 2010 and DMM6500 bench multimeters. Currently this design is tested only on DMM6500.

The original Keithley SCAN-2000 card has a very basic design: few serial-to-parallel shift registers and bunch of bi-stable (latching) mechanical relays. The control signal from the DMM has 3 lines: clock, data and strobe. The card's manual has the full schematic; by looking at the schematic you can determine which bit does what. After realizing that the…

CozScan2020, from the project README
From the project README

Main components on the CozScan2020

TLP3558Arduino_Micro

CozScan2020 bill of materials (BOM)

77 components, 7 distinct parts.

QtyPartRefs
44
TLP3558
U1, U2, U3, U4, U5, U6, U7, U8 +36
1
Arduino_Micro
U25
2
Screw_Terminal_01x10
J1, J4
2
Screw_Terminal_01x12
J2, J5
1
Conn_02x16_Top_Bottom
J3
1
10u
C1
26
R
R1, R2, R3, R4, R5, R6, R7, R8 +18

CozScan2020 design files

The KiCad project lives in the cozdas/CozScan2020 repository on GitHub; these links point at the commit this page was built from.

CozScan2020: common questions

What microcontroller does the CozScan2020 use?

The CozScan2020 is built around the Arduino_Micro, from the AVR/Arduino family.

How big is the CozScan2020 PCB?

The CozScan2020 measures 201.9 × 68.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CozScan2020?

77 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the CozScan2020 design files?

From the cozdas/CozScan2020 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the CozScan2020 design in my own project?

Yes, under the terms of its BSD-3-Clause license, which cozdas chose for the repository.

Can I test firmware for the CozScan2020 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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