Summarize the following:
To detect infrared light on your own, gather a remote control and a device that records video. Depending on your preferences, you can use a smartphone, camera, and video recorder. Choose a remote control that has a small light bulb at the top, which emits infrared light when you press a button. Smartphones are generally the easiest way to detect infrared light. You will need a working remote control to detect infrared light. Test your remote control by pressing a button to make sure it responds correctly. If it doesn't, try changing the batteries or using a different remote control. If you're not sure whether your remote control's batteries are dead or it doesn't work, replace the batteries first before discarding the remote altogether. The specific button doesn't matter, so long as your remote control is on and working. Even if you're in a different room from the device it controls, your remote control will still emit infrared light when you press the buttons. Turn on your video recording device and, while looking at the remote control's top light bulb through the camera, press any button on the remote control. The small flash of light you see is infrared light emitting from your remote control as it sends signals to the device it controls. If you don't see a small flash of light, check your remote control's batteries or test it again, as it may be broken.
Gather the materials to detect infrared light at home. Test your remote control to make sure it works. Press any button on your remote control. Watch the remote control through the device, focusing on the top light bulb.