Up to 8 outputs
Control all your circuits from a single unit, wherever you are.
Xptrucks · TinyRail
Your adventure's power, fully under control
Control every circuit in your van, motorhome or expedition truck from your phone. Built for van life, fully off-grid, anywhere on the planet.
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In command
Run your whole van, in one tap
Lighting, water pump, heating, fridge, ventilation: control every output from your app or dashboard, anywhere on the planet.
- Home Assistant native integration, at the heart of your connected van
- Dedicated app control in seconds, nothing to set up
- 100% local no cloud, works even without a network
- Timers & scenes auto shut-off, night mode, energy savings
- 12 V and 24 V works with both systems
Made to fit
Every output, set up your way
Tailor how each circuit behaves to your build, no tools, straight from the app.
- Dimming on every output, for the mood or to save power
- Adjustable max current per output: every circuit protected at the right level
- Grouping & exclusivity group outputs, or make them exclusive
- Power-on state on, off or just like before, your choice
By the book
Installs cleanly, without redoing everything
TinyRail connects to your existing wiring, near the electrical panel. Every output stays protected by a fuse: the safety you need to meet your vehicle's electrical standards.
- Existing wiring fits in without reinventing it
- Fuses protected and compliant with conversion standards
- Compact replaces a tangle of switches and relays
Always watching
Every circuit, monitored around the clock
TinyRail keeps an eye on your system at all times and warns you before things go wrong.
- Consumption tracking per output: manage your battery, spot drifts early
- Thermal protection outputs shut off automatically on overheat
- Phone alerts overcurrent, overheating or a tripped output
Always a plan B
A fail-safe cascade, never out of control
Whatever happens, you stay in charge of your system. Three fallback levels kick in automatically.
- Level 1 · App & Home Assistant remote control, everyday convenience
- Level 2 · Physical buttons keep control if the app or network goes down
- Level 3 · Forced operation move the fuse if the electronics fail
At a glance
Why TinyRail
Fail-safe cascade
Three fallback levels: app, physical buttons, forced operation at the fuse.
Adjustable max current
Set the limit of each output: every circuit protected at the right level.
Thermal protection
Temperature monitored: outputs shut off automatically on overheat.
Dimmable outputs
Set the brightness of each output, for the mood and to save power.
Grouping & exclusivity
Group outputs together, or make them mutually exclusive.
Power-on state
Choose each output's state on restart: on, off, or just like before.
Consumption tracking
See consumption per output and stay on top of your range.
Open & connected
Native Home Assistant and a dedicated app; 100% local, no cloud, fully off-grid.
In practice
What it actually changes, once you're on board
No more wall of switches
Your circuits live in an app and eight buttons. Group them, isolate them, rename them. Your van, your logic.
Lights that turn themselves off
A timer at night, a night mode, and you never get up again to check everything's off.
You'll know before it fails
Every output is measured. A drifting draw, and the alert hits your phone long before the battery gives out.
The day the network drops
No cloud, no panic. Everything stays controllable locally, and even with the electronics down, the fuse switches the output to forced operation.
Datasheet
Specifications
Electrical
- Input voltage
- 9 to 30 V DC (12 V / 24 V)
- Outputs
- 8 independent DC outputs
- Switching
- Solid-state high-side (relay-free)
- Current per output
- Up to 10 A (Mini ATO fuse)
- Dimming
- 1 kHz PWM, adjustable per output
Protection & safety
- Current sensing
- Per output, real-time
- Overcurrent
- Configurable threshold per output
- Thermal
- Temperature monitored, auto cutoff
- Fuses
- Mini ATO per output (standards compliant)
- Fail-safe cascade
- App/HA, buttons, forced operation at fuse
Network connectivity
- Wi-Fi
- 2.4 GHz (802.11 b/g/n)
- Bluetooth
- Bluetooth LE 5.0
- USB
- USB-C (power, flashing, config)
- Controller
- ESP32-C3 (Wi-Fi + BLE)
Software & integration
- Firmware
- ESPHome (open source)
- Smart home
- Native Home Assistant
- Protocols
- MQTT, local API
- Updates
- OTA, wireless
- Cloud
- None, 100% local
Control & interface
- Front buttons
- 8 (one per output) + AUTO/FORCE
- Indicators
- Bicolor LED per output
- Grouping
- Output coupling or exclusivity
- Power-on state
- Configurable per output
Connectors & mounting
- Connectors
- 2 output connectors + VBAT/GND terminals
- Mounting
- 4 mounting tabs
HSD board (current version). Specifications subject to change.
Owner or professional converter?
Whether you're kitting out your own van or your clients', let's talk about your project.