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Camper Jarvis

🌀Camper Jarvis SmartKnob

🌀Camper Jarvis SmartKnob

One dial, total control

Regular price $416.00 USD
Regular price $476.00 USD Sale price $416.00 USD
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Swap spaghetti wiring for simplicity. Camper Jarvis SmartKnob™ gives van‑lifers instant, tactile control over power, lighting, water and HVAC—no cloud, no clutter. Built on an ESP32‑S3, it pairs with every Camper Jarvis module and shows Victron, Votronic or China‑BMS data on one crisp 1.2″ display.

Why you’ll love it

  • Eyes‑off rotary + push interface
  • < 0.1 W standby power draw
  • Built‑in Wi‑Fi & ESP‑NOW mesh
  • Glove‑friendly crown and 66‑LED ring
  • OTA firmware updates with rollback

Product Specification

  • Supply Voltage: 9– 36V DC
  • Standby Draw: < 0.3 W
  • Max Draw: ≤ 2 W (LCD + LEDs full)
  • Dimensions: Ø 45 mm × 32 mm
  • Sensors: 60 GHz radar, 6‑axis IMU, temp/pressure/ambient‑light

What's in the box?

  • SmartKnob assembly
  • Panel‑mount ring + locknut
  • USB‑C 90° pigtail (20 cm)
  • Quick‑start guide
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SMARTKNOB – The Heart of Your Camper

Smart, beautiful, and in control—Smartknob takes your camper technology to the next level. Developed with the community, built for everyday adventures.

Product image smartknob
Total control with just one twist

Total control with just one twist

Smartknob replaces countless switches—control lights, heating, boiler, devices, or even the lifting bed easily by turning or pressing the knob.

Smart display—always the info you need

Smart display—always the info you need

The large, round display always shows only the most important information—like temperature, tank levels, or battery status. No clutter, no distractions.

Revolutionary user experience

Revolutionary user experience

A built-in motor and 66 LEDs let you feel clicks, stops, and get light feedback, making every interaction intuitive and unique. Menus and controls are easier than ever.

Senses when you’re present

Senses when you’re present

A radar sensor detects people and pets inside. The display and LEDs will automatically dim or switch off—great for undisturbed sleep (with DND mode at night, for example).

Tracks climate and orientation

Tracks climate and orientation

The Smartknob always keeps you updated on temperature, humidity, air pressure, and even the tilt of your camper—simple and at a glance.

Personalized and efficient

Personalized and efficient

A light sensor automatically dims the display and LEDs: never too bright, never too dark. The Smartknob saves energy whenever possible, including by automatically lowering CPU speed. Available in many colors to match your style.

Your own network & dashboard

Your own network & dashboard

Smartknob creates its own WiFi in your van: Simply connect with your smartphone, tablet, or laptop and open the Camper dashboard—no extra app needed! If you already have a van WiFi router, the Smartknob can also connect to it.

Silent, efficient, and safe

Silent, efficient, and safe

Extremely power-saving, maintenance-free, and virtually silent in everyday use. Smartknob protects itself and your camper setup from surges, overheating, and other issues—tested and certified to the latest EU safety standards.

Plug in and go—no manual needed

Plug in and go—no manual needed

The Smartknob interface was developed with design experts and the community, so everything is logical, intuitive, and needs no instructions.

Smart extras for advanced users

Smart extras for advanced users

Automate life: Smartknob can heat your water boiler with surplus solar energy or make your fridge ultra-quiet at night—you decide how much automation you want. License system: Upgrade features easily, stay flexible—no internet required.

Control from anywhere

Control from anywhere

Soon, Smartknob will let you manage your camper remotely (with internet in the van)—whether you’re hiking, shopping, or at home. You can, for example, start the parking heater before you even reach the van so it’s warm when you arrive. All your devices and settings, accessible from anywhere.

Clever profiles for any situation

Clever profiles for any situation

Special travel modes like “Winter mode” help conserve energy—the system sleeps and only wakes periodically, keeping your battery charged for weeks even if the van sits idle.

Lock and guest mode for extra security

Lock and guest mode for extra security

With guest mode, you can set it so no one can change settings—perfect for family, friends, or when your van is in the workshop. Your setup stays safe and just how you like it.

Integration with other smart gear

Integration with other smart gear

Smartknob works with Tuya and Shelly lighting modules—giving you even more smart options in your van. It can also connect to Ruuvi outdoor sensors for things like outside temperature and weather right on your display.

Grows with your ideas

Grows with your ideas

More smart scenes (like “Cooking” —lights, extractor fan, and stove with one twist) and easy upgrades with license keys are always being added—no internet required

Hassle-free updates and future-proof

Hassle-free updates and future-proof

Software updates are easy: just upload in the dashboard—or soon, install automatically online. Always up to date without a fuss.

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Smartknob – Technical Features and Details for Professionals

Central control and operating platform

  • Haptic multifunction rotary/push knob with integrated 1.2" round LCD display (240×240 px).

  • Intuitive, context-based user interface developed with UX designers for menu navigation and operation logic.

  • 66 individually addressable, circular RGB LEDs for dynamic visualization of status, menus, warnings, and functions.

Sensors, feedback & measurement functions

  • Precision BLDC motor with closed-loop control for definable haptic clicks, soft limits, and menu boundaries (including end stops, configurable rotational resistance, special “feel” zones).

  • 6-axis IMU (accelerometer/gyroscope) for attitude detection and vehicle level/incline evaluation.

  • Radar presence sensor for detecting people and animals inside the vehicle.

  • Ambient light sensor for automatic dimming of display and LED ring (individually adjustable).

  • Temperature, humidity, and air pressure sensor for climate data capturing.

  • Optional: Integration of external Ruuvi sensors for extended climate and weather data.

Audio and multisensory feedback

  • Integrated speaker for audio feedback (clicks, warnings, status).

System integration & networking

  • Creates its own WiFi including web server (dashboard accessible from any device in the camper, including detailed configuration, statistics, and logging).

  • Optional integration into existing WiFi infrastructure (router/onboard network) for remote access and system integration.

  • Interface compatibility: Integration with Tuya/Shelly lighting modules.

Control logic, scenes & licensing system

  • Extensive control and automation logic (boiler based on SoC, fridge night setback, etc.), flexibly configurable via dashboard and the knob itself.

  • Predictive smart functions such as excess energy detection (full battery → preheat boiler, cool fridge).

  • Future-proof, expandable licensing system for unlocking new features/scenes even offline.

Operation & energy management

  • Ultra low power operation: standby consumption < 0.1 W, typical operation ~0.8 W, full load (display/LEDs/active motor) max. 5 W.

  • Autonomous energy management: display, LED lighting, and CPU frequency are automatically reduced after inactivity.

Safety features & profiles

  • DND/operation profiles (e.g., winter or “deep sleep” profiles): Adjust all functions for different travel situations (measurement & communication intervals for maximum battery protection).

  • Guest mode (no settings can be changed, ideal for workshops, family use, rentals).

Expandability

  • USB-C port as charging output for external devices such as smartphones/accessories.

  • Compatibility with upcoming scenes and system extensions (Switchy Extend, Maxxfan module, etc.).

Build, sustainability & quality

  • Smartknob is locally and demand-driven manufactured in Germany.

  • Many parts are made in professional 3D printing; unlike traditional injection molding, there is no need to overproduce thousands of housings nor ship them worldwide, which saves resources and minimizes climate impact.

  • This avoids overproduction and enables rapid adaptation to demand or new ideas.

  • Modular and low-maintenance design, all components optimized for robustness and durability; available in three color variants.

Updates, monitoring & compliance

  • Firmware updates via dashboard:
    – Offline per file drag & drop
    – In the future, online (OTA pull)

  • Remote access (remote control) via web dashboard – optionally encrypted access with internet connection.

  • CE certified, tested according to current EMC/EU safety regulations in an accredited lab.

  • Operating temperature range: –20 °C to +80 °C; input voltage: 9–36 V DC.

  • Maintenance-free, vibration-proof, silent operation.

  • Wireless range to connected modules up to 15 m.

About the SmartKnob

This product was inspired by the open-source SmartKnob project by Scott Bezek (https://github.com/scottbez1/smartknob).

While the original SmartKnob concept served as a starting point, the hardware in this product has been extensively redesigned and newly developed, including custom antennas, electronics, sensors, and a proprietary force detection system.

The entire software stack has been independently and fully developed.

The original SmartKnob project is licensed under Apache 2.0 (software/electronics/documentation) and Creative Commons Attribution 4.0 (hardware/mechanical design).