Mede lid "Botervis" heeft in een grijs verleden al eens laten vallen dat hij hiermee stoeit maar vreemd genoeg heeft niemand dat toen opgepikt.
Dus breng ik dit leuke project nog een keer onder de aandacht.
Eerst maar de link:
FreeBoard is a new way to provide navigation instruments on your boat.
Goals
minimal cost
maximum interoperability
support wind, log, autopilot, charts, and other common uses.
use low cost commodity hardware
support modern devices (PC, tablets, cellphones)
support for many simultaneous users
total system cost (less clients) <USD500
use common KAP/BSB or ENC map formats (US NOAA Raster charts work) See OpenSeaMap.org
Support Signal K
Thats achieved in a totally unique way, by providing the instruments and chartplotter via a web page over a local wifi link on your boat, so that any device with a web browser can access them.
Capabilities
Like a PC, Freeboard can do many different things for different needs.
Multiplex NMEA, convert Seatalk to NMEA and vice versa
Broadcast NMEA over Wifi. (eg to OpenCPN, default tcp port is 5555)
Provide a low cost way way to add wind instruments, digital compass, or GPS, via NMEA to existing systems.
Use your existing instruments NMEA output, if its available
Provide a chartplotter and virtual instruments over wifi to several tablets, PC's or cellphones, all at once
Provide low cost autopilot
all of the above at once
Details
There are two major parts to a FreeBoard installation. Both these items are commodity hardware, with a combined cost of about USD100. Even with all the extras (anemometer, motor driver, cases etc) the cost should not exceed USD500. The combination uses a total of about 0.4Amps at 12V so its easy on the battery.
1 - FreeBoardPLC - Arduino
Freeboard runs on the Arduino to interface with boat hardware. It currently multiplexes NMEA-0183, Seatalk, Peet Bros wind sensors and misc hardware, GPS, and IMU (rate adjusted compass). It provides anchor watch, and alarm functionality, and can control an autopilot servo unit via an extermal motor driver.
Output is NMEA-0183, so it can also be used to provide NMEA to an existing system.
2 - FreeBoard-server - Raspberry Pi.
Freeboard runs on the Raspberry Pi to collect and process data from FreeBoard Arduino, and to provide it via a webserver. Input is NMEA-0183. Output is viewable on any reasonably modern web browser, on PCs, tablets, or cellphones. It supports many concurrent users, so you can finally afford instruments at the helm, the nav station, and in your bunk (for offwatch!).
FreeBoard-server is a java application and can run on any with java, eg PC, laptop, etc.
Bijlage FreeBoard-1.jpg niet gevonden
Bijlage FreeBoard-2.png niet gevonden
