TL;DR : I want to know if there is any product on the market, That on which when radio frequency falls, and it turns on an LED. Basically an on off switch but controlled when radio waves hit it.
What I hope to achieve is that, i want to have a remote of sorts, And when i press a button, the LED turns on. Without having line of sight.
Why? Because me and my dog play fetch at night, (Dont ask why I have many reasons to if i could at day i wouldve but cant 😀 ) and i almost always loose the ball every night into the bushes and its too scary to look for it. Have lost many balls and its become annoying and expensive to loose balls every night (Im a student)
What I have in mind is the idea that i could press a button and it transmits radio frequency and when it hits the ball the led turns on so i can see it.
I know arduino could do it found blinking codes for it too but i cant fit it into a ball and even if i did my dog would crush it in his mouth, (and also i dont know much about coding so id best avoid it 😀 ) so ideally am looking for something really small and simple that would be inside the ball so if even he bites it theres a good chance he wont crush it.
What i want to know is, is there anything that is available like what i described? A switch that when RF falls on it it lets current pass through it like a switch allowing the led to turn on bright so i can find it? does anything like that even exist? I can find voice activated clap sound light heat temp IR everything activated switches but not this.