Radar

Sensa Radar replaces the endless “nearest X to me” searches that come with life on the road. We include Radar Pro as part of our navigation module inside our Nomad product. Nomad uses the GPS feature on your Teltonika router to power the navigation. However not everyone has a Teltonika router and we thought it may be useful as a standalone app for web and mobile, so we have released a standalone app too.

The system is currently in beta, so the Pro tier isn't yet available and we have no Service Level Agreement, but we are keen to receive feedback from the community on future features. Give it a try at [radarbeta.sensa.systems](https://radarbeta.sensa.systems).

Pick the categories you care about — fuel, LPG, toilets, supermarkets, pubs, vets, campsites, aires, drinking water — and Radar shows them on a map and a list, sorted by distance, on whichever device is to hand.

Home Assistant integration

The HA custom component installs a Radar panel (the web app embedded as an iframe, using your HA device tracker for location) plus sensor entities like sensor.nearest_lpg_station. That means you can build automations such as “notify me when within 5 miles of an LPG station” or auto-display nearby services when you arrive somewhere new.

Accounts and privacy

Accounts are optional. Without one, your preferences live in your browser. With one, they sync across web, mobile and HA. Coordinates aren’t stored permanently — only your last-used location, in-session, for refresh. Sensa Radar accounts are separate from Sensa Control accounts.

What it does

• Nearest view. One result per category, grouped and reorderable. Star the ones that matter to pin them to the top.
• Drill down. Tap any category to see every result in your radius, filterable by data source.
• Vehicle-aware hazards. Low bridges, weight limits, narrow lanes and active flood warnings rendered as their own map layers. Set your vehicle profile once; Radar only flags the hazards that actually block you.
• Upcoming hazards. When you’re moving, Radar watches a cone ahead of you and warns you about restrictions in your path before you reach them.
• Vehicle-aware routing. Plan a route that already avoids the hazards your van can’t clear — no separate truck-routing subscription required.
• Curated UK data. Toilets, fuel prices, EV chargers, ATMs, NHS pharmacies and dentists, MOT centres, libraries, bathing waters, parks and more come from authoritative open sources, not scraped from a single map provider.

Full Capabilities (As of beta 5)

Find

• Postcode or GPS search with adjustable radius (0.5 mi → 60 mi, fine at the low end)
• 25+ amenity categories across 8 groups: Essentials, Fuel & Charging, Food & Drink, Health, Vehicle Services, Parking, Overnight Parking,
  Leisure
• Filter results by category and by data source, with auto-refresh on every toggle
• Nearest-first ranking across every source

Categories and what each shows

• Essentials: toilets, launderettes, post offices, Amazon lockers, ATMs, pharmacies, drinking-water refills
• Fuel & Charging: petrol/diesel stations with live prices, LPG/Autogas, EV charging with connector types
• Food & Drink: supermarkets, restaurants, cafes, pubs — with FSA hygiene ratings
• Health: hospitals, dentists, vets
• Vehicle Services: MOT stations, mechanics, tyre shops
• Parking: car parks, Park & Ride, motorhome aires, laybys — with fee, max stay, capacity, and vehicle-size limits where OSM has them
• Leisure: campsites, gyms, swimming pools, parks, libraries, designated bathing waters with EA water quality

Data sources integrated

• OpenStreetMap (Overpass) — primary across every category
• Google Places (Radar+ tier, gap-fill)
• UK Gov Fuel Finder (mandatory reporting, 30-min price updates)
• GB Toilet Map (15,800+ toilets, accessibility info)
• Open Charge Map (EV network)
• Revolution / Wash.ME (~1,264 self-service launderettes)
• FillLPG.co.uk (~1,800 LPG stations, phone numbers extracted)
• FSA Food Hygiene (every registered food business in UK)
• Open Banking UK ATM APIs (13 banks, ~6,200 ATMs)
• NHS ODS (pharmacies, dentists, hospitals)
• DVSA Active MOT Stations (~22,500 centres, classes tested)
• OS Open Greenspace (~165,000 parks and greenspaces, GB)
• Library Data / ACE (~3,300 England libraries)
• EA Bathing Water Quality (~450 English bathing waters)
• EA Flood Monitoring (live warnings + polygons, 15-min refresh)
• National Highways Network Model (Strategic Road Network restrictions)
• Postcodes.io + Nominatim (geocoding)

Vehicle-aware

• Save your vehicle profile (height, width, length, weight) once, reused everywhere
• Map pins for parking and overnight stops flag whether you fit
• Live hazard overlay: low bridges, weight/width/length restrictions — from OSM + National Highways
• Route planner (Valhalla + PostGIS): honours your profile AND detours around Sensa Radar’s ingested hazards, not just OSM tags
• Route view shows the hazards it avoided, so you understand the detour
• Services-along-route: see fuel, food, toilets, etc scoped to your planned route

Live

• Tracking with three states: Off → Tracking → Following. “Following” auto-recentres the map as you drive; drag the map to drop back to Tracking
• Heading arrow from compass, GPS course, or motion-derived
• Upcoming-hazards banner based on your heading
• EA flood warnings rendered live on the map (amber / red / severe)

Account

• Optional signup (email + password)
• Preferences synced server-side as JSONB: category selection, source selection, units (miles/km), vehicle profile, radius, last postcode
• Signed-out users still work fully; everything persists in localStorage

Under the hood

• FastAPI + PostgreSQL/PostGIS + Redis backend
• Next.js 15 web app
• Deduplication merges OSM + vendor data by category + proximity so the same launderette / pharmacy doesn’t appear twice

Tiers

• Radar (free): UK coverage with every open data source above
• Radar+ (Pro): Google Places gap-fill, worldwide coverage, premium map tiles