erste codes für ultraschall/pir sensor, die direkt daten an nodered schicken

arduino/HC_SR04/HC_SR04.ino

@@ -0,0 +1,35 @@
+#include <NewPing.h>
+
+#define TRIGGER_PIN 4
+
+#define ECHO_PIN 3
+
+#define MAX_DISTANCE 200
+
+NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);
+
+void setup() {
+
+Serial.begin(9600);
+
+}
+
+void loop() {
+
+delay(50);
+
+unsigned int uS = sonar.ping();
+
+pinMode(ECHO_PIN,OUTPUT);
+
+digitalWrite(ECHO_PIN,LOW);
+
+pinMode(ECHO_PIN,INPUT);
+
+Serial.print("Ping: ");
+
+Serial.print(uS / US_ROUNDTRIP_CM);
+
+Serial.println("cm");
+
+}