• Power supply 12VDC/24VDC (usually powered by NMEA2000 bus, LEN=3)
• NMEA2000 port
• 2 NMEA0183 inputs (isolated)
• 2 NMEA0183 outputs
• Alarm buzzer (from hardware model V1.1 up)
• Routing and conversion between those ports and Wi-Fi streams
• Wi-Fi: provides own access point (with DHCP) or connects to existing Wi-Fi network
• mDNS: gateway can always be found as pitufino.local on iOS, macOS and Linux
• NMEA0183 data servers: multiple TCP connections, UDP broadcast, UDP unicast
• TCP server for NMEA2000 data in Actisense NGT-1 format (for calibration/configuration of Actisense sensors)
• Web server (for local intranet): provides browser-based configuration, firmware update, pages to view navigation data in real time (sailing instruments, anchor watch, pilot controller, AIS-target list, engine and tank gauges, ...)
• Built-in World Magnetic Model: up-to-date magnetic variation (your chart plotter no longer needs to be online every time)
• Computes ground-referenced true wind and provides wind data and COG/SOG with proper damping to TCP/UDP streams and to NMEA2000 for other displays
• Computes 1min/10min/60min averages for TWD, TWS, COG, SOG and VMC
• Creates hourly logbook entries with averages and other statistics
• Takes over the computations of waypoint data after the chartplotter (device or software) that started a navigation to the active waypoint (‘Go to’ or ‘active route’) has been switched off
• Repeater (or external alarm) for alarms transmitted over NMEA2000 from Raymarine devices and Navico (Simrad, B&G, ...) devices
• Internal alarms for anchor drag, close AIS target, waypoint arrival, pilot waypoint confirmation and off course
• Sentence Translator: some devices output deprecated or unusual sentences. Pitufino translates them into well-supported ones. Currently implemented translations add support for Robertson/Simrad Dataline and allow Furuno FA-50 (and other) AIS transponders to be used as GPS sources.
• GPS date correction on NMEA0183 inputs for older GPS/AIS units suffering from the 1024-week rollover

Pitufino's data routing and filtering (relevant for streaming NMEA0183 data over Wi-Fi and for conversions between NMEA0183 and NMEA2000):

Apps can send nav data (e.g. waypoint data from your chart-plotter software) back to your nav devices. It's even possible to use your phone as a GPS source for the entire navigation network (for instance in an emergency):

• Comes preconfigured to allow plug and play and still offers a high degree of customization
• Elaborate settings for filtering, multiplexing, routing and conversion
• Straightforward selection of NMEA2000 sources

NMEA2000 device list and source selection:

NMEA2000 settings:

Settings for an NMEA0183 port (example for a connected AIS):

Some apps expect non-standard transducer IDs. You can change them so your app gets the data:

Which autopilots does Pitufino support?

The current firmware supports Raymarine's SeatalkNG/NMEA2000 pilots like Evolution EV-1/2 (note, EV-1 is included in system packs like EV-100/200/300/400) or the older SPX 10/30/Solenoid as well as NMEA2000 pilots from Navico/Simrad/B&G like NAC-3/NAC-2 or AC42. Since firmware V1.5.0 also Garmin's Reactor NMEA2000 pilots are supported. We are working on support for others.

User and Installation Manual

The manual can be downloaded as a pdf file.

Planned features for upcoming firmware versions

Pitufino is under active development to include new features and to extend its range of applications even wider. On our to-do list are

• hardware extension modules to connect old Raymarine Seatalk devices, USB cable, external alarm signals, and more.
• more web instruments, logbook assistant, more alarms, etc.
• support for more proprietary and deprecated sentences
• support for more autopilots
• and more sentence translations. Just tell us what nav devices you have and we will figure out a way to make them talk to each other!

Latest Firmware: V1.5.5

Download the latest version here.

Download the previous release V1.4.5 here (This is the last version including the NMEA2000 Actisense server).

Changes since V1.5.4:

• webapps show warning when simulator (shop demo mode) is on
• links from help page to settings page properly open collapsed sections now
• fixed incomplete page loading
• better HTTP caching
• switched from XHR to SSE to provide real-time data to wabapps (much less traffic, non-blocking stream server)
• various other webapp optimizations (speed, cross-browser compatibility)
• several minor improvements

Changes since V1.5.3:

• fixed issue with reconnecting to external router after connection loss (and starting own Wi-Fi after 20sec if reconnecting fails)
• fixed issue with too short timeouts for realtime data streams in web apps
• expansion port off by default
• own Wi-Fi's DHCP server now gives 0.0.0.0 for DNS to prevent recurrent requests

Changes since V1.5.2:

• Sailing Instruments no longer sound Raymarine and Navico alarms when they are disabled
• changing the settings for AIS alarm takes effect immediately
• fixed false AIS alarms caused by old entries of removed targets
• DHCP server gives longer lease time now
• Expansion port support for USB adapter, SeaTalk module and external alarm
• introduction of $PPITA sentence for autopilot status (mode, locked heading, locked wind angle)
• several minor improvements

Changes since V1.5.1:

• Pitufino continues computing nav data of active WP after plotter (device or software) goes offline
• Pitufino as external alarm for Raymarine and Navico/B&G/Simrad
• AIS, pilot-WP-confirmation, WP-arrival & off-course alarms in Sailing Instruments
• Multi Instrument got AIS list
• AIS list got country code
• buzzer config (on HW1.1)
• fixed N2K_MODEL_VERSION for HW1.1
• ensure rapid enough pos for 0183->2000 conversion
• reading pilot mode from old Seatalk pilots (via Raymarine ST-STNG converter)
• fixed missing leading 0s in lat/lon fields of 0183 sentences

Changes since V1.5.0:

• fixed readback of pilot hdg from Garmin Reactor if N/A
• fixed restoring factory presets
• changed CAN bus init to also work for 32E chips
• buzzer (on HW1.1) for anchor watch alarm

Changes since V1.4.5:

• fixed glitch in distance calculation when crossing 180-degree longitude (e.g. for SOG averages)
• modified WP PGNs for N2k: EV-1 pilots with older firmware should accept those now (when converting from NMEA0183, e.g. from OpenCPN)
• support for Simrad AC42 pilots
• support for Garmin 'Reactor' pilots (readback of wind angle not implemented yet)
• sync clock from web app if no other GPS date/time input
• more thorough software reset after firmware update and reboot or restoring factory default
• Sailing instruments web app got 24h logbook and AIS-target list, Time-to-Waypoint in data selector
• Multi instrument: Time-to-Waypoint, fixed trip-log reset buttons
• N2k source filters got 'block' option (if no N2k devices should be used for a particular kind of data)
• several data-sanity checks
• Pos, COG&SOG, HDG, ROT and Attitude for streams are downsampled now (20Hz sensors cause a lot of data)
• removed TCP server for NMEA2000 stream in Actisense NGT-1 format
• improved memory usage for increased stability
• limitted own Wi-Fi access point to 5 devices
• conversion N2k to 0183: also HDT is sent if config option to create deprecated sentences is set
• several minor improvements

Changes since V1.4.4:

• fixed glitch in average calculation for TWD
• fixed N2k device list (should not miss devices any more)
• fixed Multi instrument's wind gauge (AWA was displayed for TWA)
• Multi instrument now keeps display order when rotating the screen
• new display types for Multi instrument: UTC date/time, distance log, and averages
• plugin mechanism for custom display data for Sailing instruments and Multi instrument's digital display + editor in Multi instrument
• custom data examples: time to arrival, tack/jibe direction, longitudinal current, estimated daily distance, STW w/o damping, depth in fathoms
• Multi instrument now allows zooming in on one display per partition using pinch gesture or wheel/scroll action
• Multi instrument got rudder angle in digital display
• several minor improvements

Changes since V1.4.3:

• fixes several web-app GUI & browser-incompatibility problems
• Sailing instruments web app: proper computation of VMC in 1/10min-average mode
• shorter TCP timeouts
• several minor improvements

Changes since V1.4.2:

• GPS date correction for NMEA0183 inputs (for GPS devices suffering from the 1024-week rollover)
• fixes pos/log display in Sailing instruments app

Changes since V1.4.1:

• computation of 1min, 10min, and 60min averages for COG, SOG, TWD, and TWS
• Sailing instruments web app shows those averages (plus UTC) in LOG popup now
• Sailing instruments got 1min/10min-average mode: displays averages for COG, SOG, TWD, TWS and VMC
• plus compass-rose pointers for COG, TWD and tacking/jibing angle (=laylines)
• Anchor watch web app got rotation counter, 1/10/60min-average TWS/TWD are selectable for data fields, and GUI scales proportionally now
• Multi instrument web app uses swipe/drag gesture to change display type
• all web instruments: damping value is now filter time constant 0...9sec (before, levels 1...9 corresponded to 0.66...5.90sec)
• provide damped COG/SOG to N2k bus and NMEA0183 TCP/UDP streams
• several minor improvements

Changes since V1.4.0:

• fix for V1.4.0's problem connecting to existing Wi-Fi network
• provide damped apparent and true wind data to N2k network and NMEA0183 TCP/UDP streams

Changes since V1.3.9:

• NMEA0183 streams to unicast UDP connections (client must send first packet), using ICMP to close
• fix for problems (sporadic RX) with UDP broadcast in access-point mode: alternative using unicast probes (& ICMP to close)
• single-connection TCP server for NMEA2000 stream in Actisense NGT-1 format (N2k feed to TimeZero, Configuring Actisense Devices. Needs TCP-to-virtualCOM driver)
• new HTTP server: multiple persistent connections, consistent compression, image caching and other performance-boosting changes
• changed debug server from TCP to UDP
• Sailing instruments got night colors and scale proportionally on different screen sizes now
• Multi display got new display types: pilot controller, compass, wind instrument, position. Fullscreen and no-sleep button in Preferences menu.
• Pitufino provides VMC (WP closing velocity) when not sent by chartplotter
• several minor improvements

Changes since V1.3.8:

• full support for Raymarine SeatalkNG Smartpilots (e.g. SPx30)
• support for N2k engine sensors
• multi display got engine gauges
• settings for access-point channel
• shop demo/simulation mode
• menu has 2nd multi display
• minor improvements

Changes since V1.3.7:

• complete AP control for new Raymarine and Navico APs: switching to wind and nav mode + WP confirmation
• proper handling of active waypoint from/to N2k (including name, computing BOD if missing)
• added support for fluid-level sensors (NMEA2000 and 0183), 4 assignable tanks
• added Multi Instrument (preview, work-in-progress)
• several minor improvements

Changes since V1.3.4:

• HTTP authentication for critical requests (see/change settings, reboot, restore factory defaults, control auto pilot, update firmware, ...) using encrypted password
• hardware-restore defaults (connect TX0 to RX0 then boot) in case you have locked yourself out...
• single-step firmware upload (future firmware updates will be much easier!)
• fix for DHCP server problems after reboot (DHCP did not notice when clients hang on to their old leases)
• NMEA0183 baud rate and checksum can be changed on the fly
• added to sailing instruments: XTE, POS, fullscreen button
• improved GUI interaction (more feedback...)
• web app manifests: new launchers (i.e. bookmarks) created on the home screen on mobile devices will start Pitufino's pages as proper web apps (no browser gui, separate windows)

Changes since V1.3.2:

• support for aft depth (or 2nd depth sounder)
• new N2k source-filter option for allowing fall-back devices if selected one is offline
• added to sailing instruments: AFT depth, VMC (Velocity Made on Course), SEA temperature, distance LOG (+ 2 trip counters), no-sleep (prevents mobile from going to sleep)
• NEW anchor-watch instruments
• web pages: new menus
• setting for boat name
• several minor improvements

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