Goals & Requirements

Who doesn't know the queasy feeling of leaving their camper unattended? Today, I'm introducing you to a cost-effective solution for monitoring your own campervan.

The aim should be to operate motion detectors, surveillance cameras, and door and window sensors using the 12V circuit of the cabin battery.

The smart home sector has brought forth some interesting solutions in recent years. After some research, the Mi Home solutions have emerged as a promising option. The system operates via Wi-Fi and can be expanded with cameras and other sensors as desired. Another advantage is its excellent value for money. Besides the initial purchase costs, there are no ongoing expenses like with other providers.

So, the advantages are: no ongoing costs, remote monitoring via smartphone app, low power consumption, and fully USB-C or 12V compatible.

Pre-Planing

You should pre-plan a location for the installation of the system. I recommend installing it on a simple wooden board. This ensures a modular solution that you can easily remove and expand with new elements as needed.

The finished system should be installed near a roof hatch so that the external antennas of the mobile router can easily be placed on the roof when needed.

To connect your system to the 12V circuit, you should be able to mount the board near your interior lighting/light switches to tap into the power there.

Shopping List

Below, I'll provide you with an overview of the devices needed for building your security system.

12V USB Socket

First and foremost, we need to ensure the power supply. For this purpose, a 12V USB socket is recommended. These are sold for shipbuilding or for use in cars. We need a port for the cigarette lighter and we should install at least 2 USB-C QC3.0 ports.

Teltonika RUT950 LTE Modem/Router

Teltonika is known for its network solutions for industrial applications. They are well thought out, have high security standards, and are excellent for use in boating and camping.

This Teltonika router is particularly suitable for camper applications as it operates on 12V. I recommend replacing the included 240V AC power supply with the Teltonika Car Power Cable mentioned below for the cigarette lighter.

It is an LTE router that uses external antennas for mobile connectivity. The antennas are equipped with magnetic feet and can be placed on the roof through the roof hatch, ensuring excellent connectivity even in weak network areas. There is the option to operate the router with dual-SIM failover.

It provides LAN cable connections and WiFi, thus meeting all the requirements for our project.

Teltonika Car Power Cable

Since the 4-pin plug for power supply is somewhat extravagant, one can save themselves the experiment of crafting their own plug for the cigarette lighter by simply purchasing this cable.

Smart Home Hub 2 Xiaomi

There is a very affordable Xiaomi Mi Home Starter Set that I showcase in my unboxing video. However, it comes with the first-generation hub, which has a fixed plug for the 240V AC socket. This is obviously a no-go for our purposes, as we don't want to constantly run an inverter.

Starting from the second generation of the hub, it is powered via USB-C. Exactly what we need.

Xiaomi Door- and Window Sensor

Anyone who wants to equip their doors, cabinets, or windows with sensors can install any number of these sensors and connect them to their hub.

Xiaomi Mi Wireless Outdoor Security Camera 1080p Set

Anyone wishing to install outdoor cameras can use these weatherproof cameras. They have a built-in battery and need to be regularly charged via USB-C.

If you opt for this camera, you'll need the set as these cameras require a receiver. The set comes with the receiver and one camera; those needing more cameras can purchase additional ones separately.

Xiaomi Mi Outdoor Expansion 1080p

Here, for completeness, is an additional outdoor camera.

Xiaomi Mi Magnetic Mount 2k Camera

This camera is excellent for indoor use. The camera is spherical in shape and can be attached to the magnetic mount in any orientation, even when it is upside down.

Xiaomi Mi 360° 2K Pro Camera

Those needing a panoramic 360° view from a distance can use this camera. Excellent motion detection allows for automatic tracking of individuals in motion as well.

The Mobile App

Connecting new sensors to your Hub is a breeze. You can download the Mi Home App and simply follow the instructions while you are connected to your new Campervan WiFi.

Afterwards, you can view a live feed of your cameras, activate motion detection, receive notifications on your smartphone, or set up additional logical connections such as automatically turning on lights, etc.