This product is currently under development!

A203 V2 Expansion Board

This product is a board that expands the functions of the A203 (Version 2) carrier board manufactured by Seeed Stuido, developed for the SUSTAINA-OP^TM. Several modules developed for SUSTAINA-OP^TM can be attached/connected to this board and used by connecting to the Multifunctional Port and USB Port on the carrier board. In addition, the USB 2.0 High Speed(480MHz) 3-Port Hub is installed for further expandability.

Features Rev. 1

Top Surface of PCB	Bottom Surface of PCB	Assembled Electronic Components

PCB

• 81.20mm x 46.40mm PCB layout
The shape of the connector does not interfere with the connectors on the A203 V2.
• Two types of USB-HUB Upstream Ports
• 0.5mm pitch 20P ZIF Connector
Compliant with W11: 20PIN(USB 3.0 ZIF) on the A203 V2.
• USB Mini-B Connector (Optional)
• 2 x USB 2.0 Type-A USB-HUB Downstream Ports
• 1 x SUSTAINA-OP/ICM-42688-P-Module Attachment Port
The I/F with A203V2 can be selected from the following using the shortlands on the product.
• SPI
• I2C: Selectable slave address 0x68/0x69
• 1 x SUSTAINA-OP/USB-to-Quad-RS-485-Conv-Module Attachment Port
• 14 x LED Indicators
• 1 x Port for Connection to SUSTAINA-OP/SUSTAINA-Core-Board
  • 2 x 7 Pin Flat Cable Connector (MIL Standard Connector)
    • 2 x 3V3: 3.3 V Power Supply
    • SCL: I2C Serial Clock
    • SDA: I2C Serial Data
    • A-DP: RS-485 Data Signal Plus of CH-A
    • A-DM: RS-485 Data Signal Minus of CH-A
    • B-DP: RS-485 Data Signal Plus of CH-B
    • B-DM: RS-485 Data Signal Minus of CH-B
    • C-DP: RS-485 Data Signal Plus of CH-C
    • C-DM: RS-485 Data Signal Minus of CH-C
    • D-DP: RS-485 Data Signal Plus of CH-D
    • D-DM: RS-485 Data Signal Minus of CH-D
    • 2 x GND: Common Ground

Development Environments

This product is designed with the following software.

• Autodesk Eagle 9.6.2

Repository Contents

\images

PCB preview images and capture of design screen

\libraries

Libraries used in Autodesk Eagle design

\pcb_order

Gerber data and documentation for ordering PCB

schematic.pdf

Circuit diagram of this product

*.brd

Board wiring design file by Autodesk Eagle

*.sch

Circuit diagram design file by Autodesk Eagle

.gitignore

A file that tells Git not to track a particular file

LICENSE

License to use this product

Documentation

The following documents are available for this product.

• \pcb_order\README.md: Information for ordering the PCB or PCBA

References

Contact

If you have any questions, please contact the designer of this product, Masato Kubodera, by e-mail.
E-mail: masato.kubotera@sustaina-op.com

License Information

This product is open source. Please review the LICENSE for license information.

This product by Masato Kubotera is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.