Omega Arduino Expansion Board
For any one that may be interested, I have designed and produced an expansion board for the e Omega that provides access to Arduino Shields.
The expansion board plugs in to the Omega Dock.
It has the form factor and pin configuration of Arduino shields.
A brief summary of features:
- connects Omega GPIO pins to Arduino Digital pins
- has an on board A/D converter accessible from the Omega using I2C
- power supplied either from the Omega or via the 5v Arduino pin or from an on board power regulator to provide power from external supplies
- has power indicator
- has reset button
Full details of this expansion board can be found on GitHub at https://github.com/KitBishop/Omega-Arduino-Expansion
In particular, the file omega_arduino_expansion.pdf
provides full documentation.
Included on the GitHub repository is code for accessing the A/D converter - this code is fully documented in the pdf documenation
To whet your appetite, the following photos show aspects of the board. These photos are included in the above referenced pdf documentation with annotations:
Omega Expansion Dock with Board
Omega Expansion Dock with Board and Arduino Battery Shield
Omega Expansion Dock with Board and an Arduino System
Omega Expansion Dock with a full stack of Arduino Shields
I have also published this on Hackster at https://www.hackster.io/KitBishop/omega-arduino-expansion-c8ff3c?ref=user&ref_id=93973&offset=0
@Kit-Bishop Looks awesome! Is that a home-grown board?
It would be super cool if you could put up some design/gerber files so other people could get this board made as well!
In any case, we'll be in touch regarding the Omega2 give-away!
@Lazar-Demin Yes, 100% home grown.
Designed using PCB123 from Sunstone Circuits (http://www.sunstone.com/pcb-products/pcb123) and produced by Sunstone via their online board manufacturing service - just supply the .123 design file and they do the rest - very quick and efficient, though not cheap for small quantities - I had 6 made and it cost a bit over $130 ($22 each) - if you order large quantities the price comes down a lot - e.g. for 100 the boards would be about $7 each
The .123 design file can be found in my GitHub repository at https://github.com/KitBishop/Omega-Arduino-Expansion/blob/master/Omega Arduino Expansion-v1.2.123
Thanks for the offer of an Omega2 :-)
@Lazar-Demin As a quick follow up to my previous message:
All the components used on the board are listed (with references) in section
3.3 Componentsin https://github.com/KitBishop/Omega-Arduino-Expansion/blob/master/omega_arduino_expansion.pdf
Some further figures on costs of Sunstone producing the boards in various quantities with and without silk screening (silk screening includes solder mask):
Quantity No-silkscreen (each) Silkscreen (each) 6 $22.82 $63.84 100 $7.15 $7.60 1000 $6.25 $4.37
FYI: I have produced some small updates to the Omega Arduino Expansion Board design.
- Added a jumper to allow Arduino VIn to be connected to the External Power Sources and the Power Regulator
- Allowed for usage of TSR12450 power regulator (see https://www.adafruit.com/products/1065) as a compatible alternative to the L7805 regulator
All information on Github at https://github.com/KitBishop/Omega-Arduino-Expansion has been updated accordingly.