I have a unique problem I'm looking to solve. I'm a software engineer by trade, but spend most of my free time riding my Harley with a large group of riders. One of the problems we have is sending hand-signals forward to the pack leader. I was thinking about a electronic solution. I'd like to build a small battery powered FM transmitter/receiver. The solution would be mounted onto the handlebar, contain a button/switch and a LED. When we needed to send an alert, one would activate the transmitter - turning on all of the frequency matched LEDs on the other units. Any suggestions?