Hi, In my project, the user needs to be able to send 6 float and 5 int variables from a computer to my Arduino board when s/he desires to. The board and the computer will be less than 20 meters apart. (Probably just about 2-3 meters) The circuit may be moving while the data is still being sent over. My circuit will be running on batteries that are supposed to be lightweight and last long as well. The board has to respond to the user's prompts in real-time. Accuracy is also important. I have done some search, and it was suggested that I use Xbee devices, but I read that these devices draw about 15 mA which doesn't sound very promising. Are there more power-efficient methods that are reliable as well? Since my board is only receiving data, Is it possible to use only a receiver or would that cause errors? I currently don't have strict numbers for power consumption limit or how fast the communication has to be, as I'm just trying to find out what is practical.
Btw, it is my first time working with wireless communication, so thank you for being patient with me.