Good day.
I am working on a miniature Arduino project where I will mod several blinking puffer balls (toys) to start /stop blinking by using a close range radio signal (so they start and stop by remote button).
for this i need a miniature radio receiver. I have found some in RC sites but they are mostly very expensive or give pulse signals (I would like a open/close signal). here is some examples that I found. Receivers
Anyone know a miniature radio receiver (less then 1 cm in any length) that don't cost to much ( i will need 5-10 so price is important)?
How about simply an IR on the device, and a TV-remote-control device to send data to the IR? Ken Shirriff's IR library handles most common remote control devices.
What range are you looking for? Is line-of-sight possible? That is, would a remote control work?
I've been playing around with these: http://www.ebay.com/itm/KDQ11-NEW-1PCS-433MHZ-RF-TRANSMITTER-AND-RECEIVER-LINK-KIT-FOR-ARDUINO-SCA-1710-/350797631746?pt=LH_DefaultDomain_0&hash=item51ad2b1102
With Attiny45's and they work very well. There is a manchester encoding library I use. There are several versions of the library on the web, and through trial and error I found one that worked. If you are interested I'll dig up the links.
If you solder a 6.8 inch length of wire for an antenna on both the transmitter and receiver you get really good range, even through walls. If you supply the transmitter with 12v you get even longer range.