I want to use a pair of Wixels to light up an LED when the other Wixel is in range. Is it possible to do this with just a coin cell battery and LED attached to each Wixel? I have yet to buy them, so this is mostly theory.
I came across this post https://forum.pololu.com/t/power-saving-features/3126/1 where the guy wanted to use a Wixel and another to open and close his garage door. I’d like to do the same kind of thing, but both Wixels need to be portable.
I’d just like to make sure that I have everything figured out before I buy all of the parts. I’m getting this https://www.sparkfun.com/products/783 coin cell holder and its respective battery (https://www.sparkfun.com/products/338). They provide the 3V necessary for the Wixel. For the LEDs, Sparkfun just got these https://www.sparkfun.com/products/11450 neat things in stock, so they’ll be fun to use. Of course, I’ll get the Wixel pair from Pololu.
Because there’s no “wake on radio” feature (as per the linked post), I assume I can have it sleep for a minute, check for a signal, and then sleep again. The only problem is that if the other one is doing the same thing, but transmitting, the receiver probably won’t see the signal in that small timeframe.
Would I be better off using a regular transmitter/receiver pair like this https://www.sparkfun.com/products/10535 and an ATtiny? Or would the Wixel pair work and I’m missing something?
How would you go about doing this? Thank you in advance!