PyNav vs Helm Aware

NMEA NAVIGATION HUB + PYPILOT REMOTE CONTROL PyNav serves two kinds of sailors: - Have a pypilot autopilot? Control it from your iPhone/iPad AND display all your NMEA instruments. - No pypilot? Use PyNav as a standalone professional NMEA navigation hub. FREE VERSION - Autopilot tab + Settings Full control of the pypilot autopilot: - Engage / disengage the autopilot - Modes: compass, wind, GPS, true wind, navigation - Current heading + target heading entry - Real-time rudder angle indicator - IMU data: pitch, roll, heel, rate of turn - Full PID gain tuning (P, I, D, DD, PR, FF, WG, Deadzone) - IMU compass and rudder calibration - Tack settings - Pilot profiles (basic, wind, gps, simple, rate, absolute) - Servo stats: amp-hours, voltage, temperatures, runtime - Direct WiFi connection to the pypilot Raspberry Pi hotspot - no router needed The free version gives access to pypilot data only - no external NMEA instruments. PRO VERSION - Complete navigation hub One-time purchase, lifetime - no subscription. Works WITH or WITHOUT pypilot. Just needs a NMEA/WiFi module and an iPhone or iPad. Optimized for iPad - also works on iPhone with adapted layout. DASHBOARD - Customizable unified view 6 configurable, drag-and-drop panels: - Wind: dynamic rose or raw data grid - Navigation: SOG, COG, GPS data - Autopilot: engage/disengage, target heading, rudder indicator, IMU - Depth: color-coded - Pressure: hPa value, 3h trend, history chart - Engine: RPM with color coding (nominal / warning / danger) Resizable panels, 1 or 2 column layout. WIND - Apparent and true wind Dynamic wind rose, 5-minute history chart, real-time AWA/AWS/TWA/TWS. ENGINE INSTRUMENTS RPM, coolant and oil temperature/pressure, battery/alternator voltage, engine hours, fuel flow, exhaust and sea water temperature, gearbox state (Fwd/Neutral/Rev), transmission oil. Tank gauges: port/starboard fuel, fresh water, grey and black water. Unlimited custom charts (any parameter vs RPM or time). NAV - GPS and waypoint navigation Compass rose, true and magnetic heading, SOG, COG, STW, latitude/longitude (DD°MM'SS), waypoint navigation (bearing BTW, distance DTW, cross track error XTE), arrival indicator. CONFIGURABLE ALARMS On all NMEA data: depth, speed, heading, pressure, wind, RPM, temperatures, oil pressures, voltages, fuel levels, rudder angle. Each alarm: custom name, threshold, condition, individual on/off. Triggers: sound + vibration + on-screen banner. TECHNICAL REQUIREMENTS Free: iOS 13.4+, working pypilot setup (Raspberry Pi), direct WiFi connection to pypilot hotspot. PRO: any TCP/UDP NMEA/WiFi module (Yacht Devices, Quark-elec, Digital Yacht, Hat Labs, Actisense...) + iOS 13.4+. Pypilot optional. Supported protocols: NMEA 0183, NMEA 2000 Raw, Pypilot (TCP). SAFETY WARNING PyNav is a navigation interface. It does not replace mandatory navigation equipment. The skipper remains SOLELY RESPONSIBLE for navigation. Permanent watch at sea is MANDATORY. Pypilot is an open-source DIY project provided "as-is". PRIVACY No navigation data is sent to external servers. Runs 100% locally on your onboard network. No ads, no tracking. LEGAL Publisher: CL Consulting SASU - SIRET 94261399300016. GDPR compliant. Pypilot is an independent open-source project (Sean D'Epagnier, GPLv3). PyNav is not affiliated with the pypilot project.

Helm Aware gives you a clear view of speed and trip information on your iPhone, whether you are sailing or cruising under power. Read GPS speed over ground in knots, km/h, mph or m/s. Choose Direct, Balanced or Stable smoothing and check the GPS reception and accuracy status. Start, pause, resume and stop a trip to measure distance and time. Enable trip plotting to see your recorded track on an Apple Maps map. Starting a new trip clears the previous track and speed history. See maximum speed and time-weighted average speed, with separate resets. The speed graph shows a 60-minute window; swipe to browse older recorded samples. Open the dedicated history screen or keep the graph on your main screen. Choose a compact course display or a large compass. The app uses the iPhone’s compass heading when available and falls back to GPS course over ground. The compass reflects the phone’s orientation, which may differ from the boat’s course. Set a target and tolerance to see the allowed sector on the main compass. Cockpit mode keeps the screen awake and shows large instruments in portrait or landscape, with Day, Night and High Contrast styles. Customize the main screen by showing or hiding the course, graph and unit selector, and choose where maximum and average speed appear. Set a speed limit, a course target with adjustable tolerance, or an anchor position with a radius from 10 to 500 meters. Speed, course and anchor alerts work only while the app is active in the foreground. Sound and vibration depend on your device settings. Man Overboard (MOB) saves a position and shows its coordinates, bearing and distance. If no fresh position is available, it waits for the next valid fix. It guides you to the saved point; it does not track a person. The SOS light flashes a Morse signal with the iPhone’s flashlight when available. Neither feature contacts emergency services. Enable Live Activity in Settings to show current speed and the selected unit on the Lock Screen and, on compatible iPhones, in the Dynamic Island. GPS and an unpaused trip can continue in the background only while Live Activity is active. Background GPS can increase battery use. Alerts remain limited to the foreground. No account, ads or analytics. Measurements and settings are stored locally; the developer does not collect them. The map uses Apple Maps, may require internet access and is subject to Apple’s privacy practices. Requires iPhone with iOS 26 or later and location permission. Precise Location is recommended. Accuracy depends on GPS reception and compass conditions. Helm Aware is a supplementary information tool, not a certified navigation instrument, nautical chart or substitute for proper navigation and emergency equipment.