SMARTE FUNKTIONEN FÜR ALTE GERÄTE

SMART FEATURES FOR OLD DEVICES

The idea of a connected home excites many: lights, heaters, shutters, and coffee machines that can be controlled via voice command or app – that’s the promise of the smart home. But what about all the electrical devices you already own?

Do you really have to buy everything new? The good news: no. Even older devices without Wi-Fi functionality can be networked and intelligently controlled with a few tricks and smart intermediary solutions.

This guide will show you how to cleverly integrate your existing technology – whether it's an old TV, a classic coffee machine, or a floor lamp – into your smart home. You’ll get practical tips on what you need, which technologies work, and how you can get started without prior knowledge.

Why integrate old devices into a smart home?

Many older devices are high-quality, durable, and familiar in operation. Replacing them with new “smart” models would not only be wasteful – retrofitting is also sensible from an ecological point of view. Smart home doesn't necessarily mean new technology, but rather intelligent control of existing systems.

Benefits of integrating older devices:

  • Cost savings by using existing devices
  • No need to adapt to new operation methods
  • Sustainability by avoiding electronic waste
  • More convenience through remote control, schedules, or voice control

Basic principle: Use smart intermediary solutions

The easiest method to make old electronic devices smart is to use smart plugs, IR controllers, or smart relays. These components take over the smart control without the device itself being designed for it.

1. Smart Wi-Fi plugs

Wi-Fi plugs are the simplest way to automate non-smart devices. They are placed between the socket and the device and allow:

  • Turning on/off via app or voice control
  • Scheduled automation
  • Power consumption analysis for models with energy monitoring

Suitable for devices with mechanical switches, e.g.:

  • Coffee machines with toggle switches
  • Fan heaters
  • Floor lamps
  • Kettles

Note: Devices with electronic switches that do not automatically turn on when power is supplied are not suitable for this method.

2. Voice control via Alexa, Google Home & Co.

Many smart plugs can be paired with voice assistants. For example, you can say:

“Alexa, turn on the coffee machine.”

Requirement: The smart plug must be compatible with the voice assistant, such as via an app like Smart Life or Tuya.

3. Infrared controllers for remotes

Many older devices like TVs, air conditioners, or stereo systems can be controlled with a classic infrared remote. With an IR blaster or infrared controller like the Broadlink RM4 Mini, you can digitize and automate these signals.

Use cases:

  • Old TVs or receivers
  • Audio systems
  • Air conditioners
  • Fans

Once the remote is learned, you can automate commands like “turn on TV” or trigger them via voice.

4. Smart light switches and intermediary relays

For built-in devices (e.g. ceiling lights or shutters), smart in-wall modules, called relays, are suitable. These are installed in existing switch boxes and make the circuit controllable.

Advantages:

  • Invisible integration
  • Compatible with existing switches
  • Full control via app or voice

Important: Installation should be performed by an electrician.

5. Sensors for automation

Smart motion sensors, window contacts, or thermostats allow you to automate your old devices – e.g. a fan heater via a smart plug in combination with a thermometer.

Example automation:

  • If the window is opened → turn off heater
  • If the temperature drops below 18 °C → turn on heater

Practical examples for your home

Here are some typical use cases with simple solutions:

Example 1: Classic coffee machine

  • Plug into Wi-Fi plug
  • Leave mechanical switch set to “On”
  • Activate via schedule or voice command

Example 2: Old floor lamp with switch

  • Plug into Wi-Fi plug
  • Set switch to “On”
  • Control via app or voice assistant

Example 3: Older TV with IR remote

  • Set up Broadlink IR controller
  • Learn TV signals
  • Enable voice control via Alexa

Example 4: Fan heater in bedroom

  • Pair smart plug with temperature sensor
  • Automate scenario: On below <18 °C, Off above >22 °C

Compatibility: What needs to be considered?

Not all devices are suitable for smart retrofitting. Pay attention to:

  • Mechanical switch position: The device must start automatically when powered
  • Voltage requirements: The smart plug must handle the device’s power consumption
  • Safety features: Heaters should only be used under supervision
  • Network coverage: Wi-Fi must be stable at the location

Overview of tools & platforms

Smart plugs:

  • TP-Link Kasa
  • AVM Fritz!DECT (for DECT-based smart home systems)
  • Gosund, Teckin, Meross (compatible with Smart Life/Tuya)

Voice assistants:

  • Amazon Alexa
  • Google Assistant
  • Apple HomeKit (limited for retrofit solutions)

IR controllers:

  • Broadlink RM4 Mini/Pro
  • MoesGo IR-Blaster
  • SwitchBot Hub Mini

Automation systems:

  • Home Assistant (local control)
  • ioBroker
  • openHAB

Frequently Asked Questions (FAQ)

Does this work without Wi-Fi?

Partially. Some systems like DECT-based plugs work via the Fritz!Box home network. However, app or voice control almost always requires Wi-Fi.

Can I make my washing machine or dishwasher smart?

Only to a limited extent. These devices often require manual confirmation or program selection. If the device starts automatically with the last program, a smart plug may help. Be cautious of safety and water damage!

How secure are these smart home extensions?

Choose products from reputable manufacturers with regular updates. Protect your Wi-Fi with a strong password. Advanced users can use local systems like Home Assistant to keep data within their environment.

What does it cost to get started with smart retrofitting?

Smart plugs start at around €15. An IR blaster costs €20–30, and complete systems with sensors and relays range from €50–150 depending on scope.

Can I set everything up myself?

Yes, many devices are made for beginners. Most products offer German-language apps with step-by-step instructions. Only in-wall module installation should be done by a professional.

Conclusion: Old devices, new life

Smart home doesn't mean everything has to be new. With the right tools, you can intelligently control and automate your existing electronics – without expensive new purchases. Smart plugs, IR controllers, and in-wall relays make it possible to future-proof your familiar technology.

The combination of tried-and-tested devices and new control technology unites the best of both worlds: familiar function with modern convenience. Give it a try – getting started is easier than you think.

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