Method of communication between a first node and a second node of a home-automation installation, the method comprising the transmission of a first signal from a first transmitting part of the first node to a second receiving part of the second node, upon receipt of the first signal by the second node, transmission of a second signal from a second transmitting part of the second node to a first receiving part of the first node, the second signal comprising a signal confirming to the first node that the first signal has indeed been received and understood, and placing in the inactive state or maintaining in the active state the first receiving part as a function of an information cue contained in the second signal received by the first node.