近づいた/離れた時だけ通信する
前の状態を覚えておく
var dist = 0; var dist_threshold = 0.2; // 距離のしきい値 var wifeIsHere = false; serialInit(9600); //serialSend("this wife is watching me"); while(true) { dist = analogRead(0); if(dist > dist_threshold){ if(!wifeIsHere) serialSend("N"); wifeIsHere = true; } else{ if(wifeIsHere) serialSend("F") wifeIsHere = false; } //serialSend(dist + "\r\n") }