[hpsdr] New TAPR Product -- TASS Switch System

[John Ackermann N8UR]

By the way, the 7 open collector outputs on a Hermes or ANAN board can 
be used to control the TASS-R board.  In that case, you don't need an 
Arduino.

You'll need pull-up resistors to provide the active-high signal the 
TASS-R requires, and without some encoding only 7 relays can be directly 
controlled.  But it is doable.

John
----

On 9/27/2015 12:03 PM, John Ackermann N8UR wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> A bit of shameless self-promotion, but hopefully of interest to the
> HPSDR community.
>
> I've spent the last several months developing a computer-controlled
> relay switch system.  Some surplus switches I used in my time and
> frequency lab started failing and I decided to design a more modern
> replacement.
>
> I ended up with an 8 port switch board controlled by an Arduino.  I
> think it will have applications for hams as well as time-nuts.  Like
> virtually everything I do, it ended up as a TAPR kit.
>
> There's an introductory video at https://youtu.be/P-TUM2dOi4c
>
> The relay board kit is $119 and we have a shield for the Arduino Mega
> 2560 that can control 4 relay boards and costs $19.  The software is
> open source.The boards are now available from TAPR at
> http://tapr.org/kits_tass.html
>
> (BTW, I contribute my designs to TAPR and don't have any financial
> interest in sales.)
>
> Here's the TAPR product announcement:
>
> ====
> Now Available: The TASS Computer-Controlled Switch System
>
> The TASS (Totally Awesome Switch System) is a general purpose 8 port
> DC-150 MHz relay-based switch. The hardware is designed to be very
> generic, with an inexpensive processor such as an Arduino providing the
> system logic. Control is via USB, with ethernet and other interfaces
> also available.
>
> The TASS can be configured several ways, and multiple boards can be
> combined to create large switching systems. The TASS has many uses, from
> switching signal sources on a test bench or in a laboratory, to
> selecting receive antennas and filters in a ham or SWL station.
>
> The TASS system has two boards:
>
> *  The TASS-R relay board, which does the mechanics of signal switching
> and provides a very simple 10-pin interface.
>
> *  The TASS-SHIELD board for use with an Arduino Mega 2560
> microcontroller. The TASS-SHIELD allows up to four TASS-R boards to be
> controlled simultaneously.
>
> Both boards are available now from TAPR as kits.  They use through-hole
> parts and don't require any special assembly techniques.
>
> The final component is open source software for the Arduino that acts as
> an interface between a host computer or other input system, and the
> switching hardware.  The software is available for download from TAPR.
>
>
> An introductory video is available at
> https://youtu.be/P-TUM2dOi4c
>
> or from TAPR at
>
> http://tapr.org/~n8ur/TASS/TASS_Intro_26Sep15.mp4
>
> Software and documentation can be downloaded from
> http://tapr.org/~n8ur/TASS.
>
> You may order the TASS-R and TASS-SHIELD boards by visiting
> http://tapr.org/kits_tass.html
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at openhpsdr.org
> Subscription help:
> http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
> HPSDR web page: http://openhpsdr.org
> Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/