Tip of the Day - Check if your remote control batteries are working using your smart phone camera

Most nice remote controls have an LED that will blink when you use it. This lets you know that the batteries have a charge and the remote is probably emitting an infrared signal. So what happens when your remote does not have an LED and you need to know if the remote is transmitting a signal or not? Simple; point the emitter at a digital camera (like the one on your smart phone) and press a button. If it lights up, you are good to go, if not, you probably have a dead battery.

Here is my remote control with no LED. I thought the batteries were dead.

I am taking a picture of it with my smart phone (digital camera). I obviously am not pressing any buttons right now.

When I do press the button I can see it light up... it is a purpleish light. Batteries must be working!

About McKay Christensen

After having lived in Oregon, Alaska, and China for the past 10 years doing landscape design and English teaching, I have returned to my home state of Utah and currently work for a growing tech company.

In my free time I enjoy working on my website where I post tutorials and reviews (and anything else I think is geeky) and I also like to write songs for my Super English Kid Youtube channel.

My favorite things to do include anything with my wife and son. Hiking, camping, and photography (or anything else outdoors). Playing Ultimate Frisbee or Ping Pong. Listening to 60s, 70s, or 80s, music. 

Feel free to contact me using my contact page. I would love to hear from any of you!


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