Lock & unlock
Left it open at the beach? Lock from the water line.
POST /command · lock
Self-hosted command deck · BYD Dolphin Surf
Live telemetry, fourteen remote commands and automations for your Dolphin Surf — running on your server, speaking with your credentials, selling nothing to no one.
SOC 64% · 198 KM
CABIN → 21.0 °C
LOCKED · LISBOA
SCROLL
01 · Telemetry
Pushed,
not polled.
The car reports over MQTT the instant something changes — HELM streams it to your screen and archives every sample in your own database.
01State of charge
02Real range
03Cabin climate
04Tyre pressure
State of charge
64%
Battery percentage lands in under a second of the car reporting it. Watch a charge climb in real time from anywhere on earth.
WS /api/vehicles/{vin}/stream
Real range
198km
Range as the car computes it — not an estimate of an estimate. Logged with every sample, charted over weeks.
GET /api/vehicles/{vin}/state
Cabin climate
21.0°C
Watch pre-conditioning pull a winter cabin to temperature before you've finished your coffee.
POST /command · start_climate
Tyre pressure
2.4bar
All four corners, straight from the TPMS. A slow leak shows up in your history before it shows up on the road.
GET /api/vehicles/{vin}/history
02 · Control
The command deck.
Every remote the factory app offers — gated to what your VIN actually exposes, audited on your disk, callable from a UI or one clean REST endpoint.
Pre-condition
Set the temperature and duration. Step into 21 °C, every time.
POST /command · start_climate
Windows
Crack them on a hot day, seal them when the rain rolls in.
POST /command · close_windows
Charging
Start and stop remotely. Pair with a cheap-rate schedule.
POST /command · start_charge
Find my car
Flash the lights, sound the horn, get the GPS pin.
POST /command · find_car
Alerts
Charging done, battery low, left unlocked — pushed to ntfy, Discord, anywhere.
POST webhook · your choice
Fourteen commands.
Zero taps wasted.
Trunk, seat heat, battery heat, flash — everything your VIN exposes.
→03 · Automation
Rules that drive themselves.
01
Schedules
“Pre-heat to 21 °C at 07:30, weekdays.” The cabin is warm before your alarm rings twice.
02
Event rules
“If it's left unlocked, lock it.” “At 20% battery, ping me.” Events trigger actions in seconds.
03
Fully audited
Every command is logged with its source — you, or a rule. Nothing happens behind your back.
HELM · AUTOMATION LOG
07:30:00schedule “weekday pre-heat” fired
07:30:01→start_climate 21.0 °C · 20 min ✓ accepted
07:30:04cabin 8.4 °C → target 21.0 °C
18:20:11event unlocked → rule “auto-lock” armed
18:25:11→lock ✓ accepted
20:04:56event battery_low 19%
20:04:57→notify “Plug in soon” · ntfy ✓ sent
04 · Privacy
No account. No middleman. No analytics.
HELM authenticates as you, with your BYD credentials and control PIN — the same thing the factory app does, from hardware you control. Your car speaks to your server, and your server speaks only to you.
◆ YOUR METAL
◆ YOUR TLS
◆ YOUR DATABASE
◆ YOUR RULES
0
Commands
<0s
Push latency
0%
Self-hosted
0
Third parties
Ready when your Dolphin Surf is
Take the helm.
Launch the command deck, or ride the demo — no login, running entirely in your browser.