AIS doesn't have to be expensive. With dAISy all you need to start tracking ships are a VHF antenna, a Windows, Mac, Linux or Android device, and a clear view of the sea.
This marine AIS receiver works great with OpenCPN, Ship Plotter and any other software that accepts serial data input. dAISy is also well suited for reporting local ship traffic to services like MarineTraffic.
With its small size and very low power consumption, dAISy is the perfect AIS receiver for DIY projects built around Raspberry Pi and other single-board computers. Also check out our new dAISy HAT built specifically for the Raspberry Pi.
With this option, the dAISy AIS Receiver can directly talk to chart plotters and other marine electronics. In addition, the integrated DC/DC converter allows to power it from your boat's 12-24V power system, removing the need for a USB power source.
You can purchase this option fully assembled together with dAISy by selecting it on the top right of this page. It is also available as a separate add-on here.
For more information and detailed specification of this adapter see the NMEA 0183 / RS-422 Adapter for dAISy product page.
OpenCPN, an open source chart plotter and navigation software, can be used with devices like dAISy to track ships on a map. Any software running on a PC, Mac or small Linux computer that accepts AIS data from a serial input will work with dAISy.
Several of our customers built chart plotters based on Raspberry Pi 2, OpenCPN and dAISy. A detailed write-up can be found here. A similar project based on the UDOO Neo single board computer can be found here.
Disclaimer: WE DO NOT RECOMMEND to rely solely on dAISy for navigation and collision avoidance!
A user of an early prototype of dAISy documented how to configure a Linux system like Raspberry Pi to report directly to MarineTraffic here.
Recently he even did away with the Raspberry Pi and reports to MarineTraffic just with dAISy and an ESP8266 WiFi module running an Arduino sketch. This is based on the auxiliary serial output and definitely needs some tinkering, i.e. for advanced users only!
An alternative approach is to connect dAISy to a Linux computer (like the Raspberry Pi) running Kplex. Kplex is a NMEA-0183 Multiplexer which allows to feed the AIS data stream to multiple targets, including services like MarineTraffic and AISHub. Kplex also allows you to setup a NMEA server to distribute AIS to other devices on your network, like for example via WiFi to a navigation app running on an iPad. MUPLEX for Linux and NMEA Router for Windows are a similar tools.
For tinkerers, an auxiliary serial data stream is broken out on the PCB. With a bit of soldering, advanced users can combine dAISy with a Bluetooth module to receive AIS on wireless devices, or connect a data logger like SparkFun OpenLog.
With our open source work, we pioneered a new category of AIS receivers designed around the SiLabs EZRadioPro single chip radio IC. This architecture is instrumental for the very low price, small form factor and low power consumption. The trade-offs are longer acquisition time, lower sensitivity and less range than traditional AIS receivers.
Field tests with conventional dual-channel receivers (like SmartRadio SR162, advanSEA RX-100) showed that dAISy indeed has lower range and is slower to acquire targets. However dAISy clearly outperforms receivers in USB stick form-factor that we've tested so far (Quark-elec, MarineGadget).
Our observation is, that with a good antenna dAISy is well suited to monitor local ship traffic. If you need maximum performance and are willing to pay for it, go with a receiver from the established brands.
dAISy is professionally assembled by a local contract manufacturer here in Seattle, WA. We offer a 12 month warranty on the product (excluding physical or water damage). Please contact us if dAISy prematurely fails or if you encounter any other technical issues.
We ship with USPS First Class or Priority Mail. International delivery is very reliable, however tracking is only available for a few countries. Please contact us if you have special shipping requirements.
We also offer international shipping with DHL for US$30 to US$120 depending on location. Please contact us for a quote if interested.
Note: For international shipping, VAT and other import or handling fees may be applied by your local customs. These are the responsibility of the recipient. We will always declare the purchase price excl. shipping.
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