Many times in my long carrier I encountered the phrase "... oh, just one way transmission should be enough!" only to find that one also needs to pause, to put to sleep, to wake up, to query, to change modes, etc., the "transmit only" device.
I don't believe there is such thing as a one-direction communication only!
I'll be glad to hear about such devices.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.