v0.0.1

NodeMCUWiFiModule.ino

@@ -0,0 +1,82 @@
+#include <ESP8266WiFi.h>  
+#include <WiFiUdp.h>
+#include <spi_flash.h>
+
+#define WIFI_SSID ""
+#define WIFI_PASS ""
+
+#define IP_BROADCAST "192.168.1.255"
+#define UDP_PORT 8176
+
+String status = "";
+float distance = -1;
+float duration;
+WiFiUDP client;
+
+const int triggerPin = D6;
+const int echoPin = D5;
+
+SPI_DEVICE_TXBIT_LSBFIRST;
+
+
+void setup() {
+  delay(5000);
+  WiFi.begin(WIFI_SSID, WIFI_PASS);
+  pinMode(echoPin, INPUT);
+  pinMode(triggerPin, OUTPUT);
+
+  status = "Connecting";
+  while(WiFi.status() != WL_CONNECTED) {
+    delay(500);
+  }
+  status = WiFi.localIP().toString();
+  Serial.begin(9600);
+  Serial.println("Got IP: " + status);
+  int err = client.begin(81);
+  if(err == 0) {
+    Serial.println("Failed to create UDP Socket");
+  }
+  else {
+    Serial.println("Created UDP Socket at port 81");
+  }
+  Serial.println(String("IP BROADCAST ID SET TO: ") + String(IP_BROADCAST));
+  Serial.println(String("UDP PORT SET TO: ") + String(UDP_PORT));
+}
+
+void loop() {
+
+  digitalWrite(triggerPin, LOW);  
+	delayMicroseconds(2);  
+	digitalWrite(triggerPin, HIGH);  
+	delayMicroseconds(10);  
+	digitalWrite(triggerPin, LOW);  
+  duration = pulseIn(echoPin, HIGH);  
+  distance = (duration*.0343)/2;
+
+  if(WiFi.status() != WL_CONNECTED) {
+      WiFi.begin(WIFI_SSID, WIFI_PASS);
+      while(WiFi.status() != WL_CONNECTED) {
+        delay(500);
+      }
+  }
+  String d = String(distance);
+  String d2 = String(duration);
+  Serial.println("Distance is: " + d);
+  Serial.println("Duration is: " + d2);
+  byte *buff = new byte[4];
+  byte *array = (byte *) &distance;
+  for(int i=0;i<4;i++) {
+    buff[i] = array[3-i];
+  }
+  Serial.print("Data flipped is: ");
+  for(int i=0;i<4;i++) {
+    Serial.print(buff[i], HEX);
+  }
+  Serial.println("");
+
+  client.beginPacket(IP_BROADCAST, UDP_PORT);
+  client.write(buff, sizeof(float));
+  client.endPacket();
+  delay(3000);
+  delete[] buff;
+}