Videos & Webinars




Haystack FAQs


Videos & Webinars

DASH7, Haystack & the Internet of Things.
Oct 4, 2012 Webinar

Download the PDF from the presentation.



Extending the Near Field Communication Market Opportunity with DASH7 Wireless Sensor Networking Technology

Haystack: September 2, 2012
DASH7 and NFC (Near Field Communications) complement each other extremely well, as their features and functionality are completely different, but their technologies are suprisingly similar…

Specifications and Downloads


DASH7 Specification D16y

DASH7 is the ultra-low-power wireless Internet of Things protocol stack created by Haystack now utilized by dozens of applications and integrated into an international industry alliance. Haystack uses the Mode 2 D16 spec version, which is the most advanced and most modern version.



OpenTag is the open source firmware code that implements DASH7. Usually compiles into less than 40KB and is free for non-commercial use.



HayTag: Solar Energy Harvesting Long Range IoT Tag

HayTag is an ultra low power, DASH7-based IoT node supporting wireless range of greater than 1km outdoors, and typically greater than 250m indoors. HayTag is rugged and environmentally sealed, and it charges its battery using solar energy harvesting.



Haystack Distribution of OpenTag (HDO)

OpenTag is the DASH7 firmware stack created by Haystack. HDO adds essential features and optimizations to OpenTag that make it ready to perform in demanding IoT deployments.



H-Builder Software Tools

Haystack’s H-Builder provides software tools for integrating Internet data systems with Haystack/DASH7 IoT networking.



Haystack Technical Support Capabilities

Haystack has over a decade of experience supporting Internet of Things projects, particularly using low-power wireless connectivity, and also with all things DASH7.


Frequently Asked Questions

Questions About Haystack’s IoT Stack

What is included with The Haystack?
The Haystack is, first and foremost, a certified release of DASH7 OpenTag called HDO.  We include patches, bug fixes, and updates to OpenTag.  The Haystack also includes a growing portfolio of starter applications, DASH7 enhancements like our proprietary Reed-Solomon error correction, reference designs, and other tools to make developing for DASH7 as simple as possible.  All releases of The Haystack have manifest files for all packages in the distribution (e.g. OpenTag, Haystack Server Applications, iOS applications, documentation).

What license is used by The Haystack 1.0 (which includes OpenTag)?
Just like OpenTag, Haystack’s version of OpenTag is released under the modified BSD license known as The OpenTag License.  Haystack tools, applications, and other non-OpenTag assets are licensed under a Haystack-specific license.

Is the Source for The Haystack Including OpenTag Available?
Yes: we package our code in hex-file, library, and source form.  Hex-files are archived based on the featuresets they include, and they can be flashed onto supported hardware quickly and easily.  Users demanding a greater degree of customization may also compile OpenTag together with Haystack libraries or source code distributions.  These packages drop-in easily into OpenTag, so engineers familiar with embedded system programming can easily patch-in their changes, or build for platforms we do not yet certify.

Which Silicon Platforms Are Supported?
Most of the Haystack additions to OpenTag are platform-independent, so it is easy for us to support all of the platforms supported by OpenTag.  Today, we support several MCUs of the ARM Cortex M family, and several radio devices from major vendors such as ST, TI, Semtech (including LoRa), and others.  Some of these devices are integrated in SoC or SiP form factors.  We are also interested to know which silicon platforms you would like to see next.

What is the Relationship Between OpenTag and The Haystack?
OpenTag is an open source firmware library that implements some elements of the DASH7 Mode 2 specification using a modified BSD license (i.e. The OpenTag License).  We incorporate OpenTag into The Haystack, which is a superset of OpenTag.

How Does Haystack Work with Low Power Wide Area Networks like LoRa?
Haystack can be deployed over many PHY layers including that of LoRa and other similar networks. For more information on specifics ports of HDO to LPWANs, email us at

How Does Haystack Work with Near Field Communications (NFC)?
We are strong advocates for the mobile telephony industry to embrace an alternative to WiFi or Bluetooth for most internet of things applications. A longer range/lower power connectivity option that does not require high cost components (like LTE) and that can support multi-year battery life on stand-alone sensing devices is highly sought after by IoT developers around the world and the existence of NFC means the potential to use a smartphone as a “command and control center” for the IoT is within our grasp. Haystack does not design NFC silicon for this purpose however we await the industry’s next steps in this regard. More info here.

Who Should Use The Haystack?
The Haystack is being built to assist companies in search of a faster, cheaper way to bring long-range, low power IoT products to market.  Few companies have the same depth of understanding of DASH7 as has Haystack Technologies, or the same access to support resources, so working with us will benefit most companies seeking to develop DASH7 products.  Today, The Haystack is targeted at developers with at least some basic understanding of embedded systems development, e.g. fluency with Arduino and C compiling tools.

How Much Does The Haystack Cost?
The Haystack is in beta and terms of our licensing program are available under NDA by clicking here.

Questions About Haystack Support

What is Included With Haystack Support?
Haystack Support consists of two main components: self-driven support, and live support. Self-driven support currently includes the The Haystack Support Wiki, The Haystack Q&A site, and The Haystack Download center.

How Much Does Haystack Support Cost?
Haystack support packages start at just $1,000/year for basic support with additional packages available with phone and email support.

Questions About DASH7

Is DASH7 An Open Standard?
Yes: DASH7 is a specification developed by the DASH7 Alliance that has been submitted to ISO as a New Work Item Proposal.

Is DASH7 limited to 433 MHz?
No. DASH7 can be deployed across many sub-1GHz radio frequencies and in addition to Haystack’s “classic” physical layer at 433 MHz, DASH7 can support emerging radio technologies like LoRa, NB-IoT, and others.

Questions About Haystack Technologies, Inc.

Is Haystack’s patent portfolio license included with The Haystack license?

How is Haystack funded?
Haystack is privately funded.

Where is Haystack based?
Our HQ is in San Mateo, California.

When was Haystack founded?
Haystack was founded in mid 2010 as Blackbird Technology Holdings, Inc.


Haystack Technologies, Inc.
210 S Ellsworth Ave
San Mateo, CA 94401
(650) 762-9079


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