John, Very Cool! Thank you! I plan to use your board to switch six microwave transverters to my 144 MHz IF radio. Actually I will be replacing a Multi-port Transco relay. I'll pass along your info to VHF rover community. 73,
Dave - W6TE > From: [email protected] > To: [email protected] > Date: Sun, 27 Sep 2015 12:07:05 -0400 > Subject: Re: [volt-nuts] TASS Computer-Controlled Switch System > > Thank you John! > > John K1AE > > -----Original Message----- > From: volt-nuts [mailto:[email protected]] On Behalf Of John > Ackermann N8UR > Sent: Sunday, September 27, 2015 10:20 AM > To: Discussion of precise time and frequency measurement; [email protected] > Subject: [volt-nuts] TASS Computer-Controlled Switch System > > Every so often, I hijack the list to do some shameless self-promotion > when I think it would be of interest to the 'nuts community. > > I've spent the last several months developing a computer-controlled > relay switch system. The impetus was failure of the old HP 59307A GPIB > switches in my PPS measurement system and discovery that replacement > relays are unobtainium. The only similar remote switches I could find > cost >$1K, which seemed a bit rich. So, I decided to roll my own. > > We ended up with an 8 port switch board controlled by an Arduino. I > think it will have lots of T&F applications as well as usefulness in ham > shacks. 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.) > > Special thanks to time-nuts Bob Camp and Tom Holmes for a lot of > engineering assistance. > > 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 > " > > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
