The LED has a rating of 1.5 amp peak, 100mA continuous, and 1.6 volts maximum forward voltage. I determined that a 6.8 ohm resistor will provide 500mA of current with a 5v supply, and a 3.4 ohm resistor will provide 1 amp of current using an online calculator.

For equipment that is hidden or out of your Fire TV Cube's line of sight, use an approved infrared extension cord. To operate entertainment devices like set-top boxes or AV receivers, your Fire TV Cube has an inbuilt infrared blaster.

NOTE: The location of the IR sensor varies depending on the TV model; it can be found on the left at the bottom, middle, and right of the screen. The IR sensor is situated adjacent to the (IR) mark, if there is one.

It should function since the Chromecast remote sends an infrared signal.

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Can the IR (infrared) receiver cable be extended? With the use of a UTP or similar cable, the 2 meter standard length of the IR receiver cable can be extended to a maximum of 300 meters.

For instance, the forward voltage of an infrared LED at 20 milliamperes of forward current is 1.2 volts. Additionally, a standard-sized LED typically uses 20 mA of running current.

The item you wish to control should have the IR emitter mounted on its front using double-sided tape. To ensure dependable operation, it's crucial to align the IR emitter with the device's IR receiver exactly over it (see Image 4).

Although they use a different kind of light known as infrared (or IR for short), TV remote controllers function similarly. An LED light embedded in the remote control flashes rapidly to send out a message that the TV picks up.

The Smart Touch Remote can interact with your cable box and other AV devices thanks to the little Samsung Infrared Extender wire. Stated differently, you will be able to use the Smart Touch Remote to switch channels and turn on the cable box without needing to use your cable remote.