I'm new to electronics, my background is mostly on the software development side... so go easy on me, as this might be a really stupid question. I just want to be sure what is safe to assume and what not.
My project consists on emulating the IR signal sent by the RC controller of a toy helicopter so I can then command it with my hand using a LEAP motion device.
The IR signal works perfectly, but I was not being able to match the range the RC controller was capable of getting. Anything like a computer monitor in between was enough for the helicopter to fall to the ground.
I purchased the brightest IR leds I could get (TSAL6100, 1.35V@100mA) and I was definitely getting some better range than my previous IR led but still nowhere near as much as the RC controller.
Since the IR is always blinking (and not constantly on), I assumed "it wouldn't hurt much" if I started reducing the resistors and try to get more brightness (that I've been checking with a cellphone camera). I was still not being able to match that of the RC controller.... so then I started increasing voltage with a separate power source, since arduino max output is 5V and RC controller using 6 AA batteries must be somewhere around 7V
I know the dangers of doing this, but I went ahead anyway and had a 12V power source without any resistor, making those 3 IR leds blink and now I get the same and even farther range than the RC controller..... so far none has burned, however, how crazy am I for doing this ?
What would be the correct way of achieving the exact same performance as the RC controller...
Will the IR leds blinking at 38kHz ever burn out under these conditions ?
Only under these conditions I am able to see through my camera that the led brightness matches that of the RC controller..... so how are they doing it "properly" ?
Thanks in advance.