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Alexa can indeed control infrared devices through compatible hubs like the Harmony Hub or Broadlink RM Pro. However, users report mixed long-term results. While initial setup and operation are usually smooth, performance often degrades over time, with commands becoming sluggish or unresponsive.

TV remotes with infrared (IR) capability emit invisible infrared light signals to communicate with the television. While the human eye can't detect these signals, they can often be observed using digital cameras, smartphone cameras, or camcorders. IR remotes typically display an (IR) symbol.

Infrared and Bluetooth remotes operate on different principles. While IR remotes use light pulses, Bluetooth remotes transmit codes via radio waves. Bluetooth remotes operate on a frequency band between 2.400 GHz and 2.483.5 GHz for data transmission, offering different advantages and limitations compared to IR.

To set up IR control for your TV, ensure both the TV and set-top box are powered on and connected. Access the Settings screen, navigate to the appropriate menu options, and follow the on-screen instructions to complete the setup process.

Yes, Alexa-enabled devices with cameras, such as the Echo Show, can function as smart home cameras when home monitoring is activated. Users can securely view the camera feed remotely through the Alexa app or other connected devices associated with their Amazon account.

A simple way to test for an IR remote is by using a digital camera or smartphone camera. These devices can detect the normally invisible infrared light emitted by IR remotes, allowing you to confirm if your remote uses this technology.

While early TV remotes (1956-1977) used ultrasonic technology, IR remotes became the standard and remain widely used today. However, newer technologies like RF (Radio Frequency) and Bluetooth are also being adopted in some modern remote controls.

Infrared remote controls have limitations. They require a clear line of sight to function, cannot penetrate obstacles, have a limited operational angle, and may be susceptible to interference. These factors can restrict their effectiveness in certain situations.

Some smartphones equipped with an IR blaster can indeed function as universal remotes. By downloading appropriate apps like AnyMote Smart IR Remote, these phones can control not only TVs but also other IR-responsive devices such as set-top boxes, DVD players, and even some air conditioning systems.

Infrared (IR) remote signals behave similarly to visible light and cannot pass through solid, opaque objects like walls. The IR beam is largely blocked by such barriers. Even transparent materials like glass pose a significant obstacle to IR signals, with most of the beam being reflected off the surface rather than passing through. This limitation means IR remotes typically require a clear line of sight to the device they're controlling.