From bbec6e6f4998cba4909ca6adc1a68ae2ad8fbaa6 Mon Sep 17 00:00:00 2001
From: Stefan <stefan@unhb.de>
Date: Sun, 15 May 2022 16:08:15 +0200
Subject: [PATCH] Wifi working, mqtt still to do

---
 Abstandssensor.ino | 73 ++++++++++++++++++++++++++++++++--------------
 1 file changed, 51 insertions(+), 22 deletions(-)

diff --git a/Abstandssensor.ino b/Abstandssensor.ino
index b2a41d7..ead66f2 100644
--- a/Abstandssensor.ino
+++ b/Abstandssensor.ino
@@ -1,4 +1,4 @@
-#include <WiFi.h>
+#include <ESP8266WiFi.h>
 
 #include <NeoPixelBus.h>
 #include <NeoPixelSegmentBus.h>
@@ -20,7 +20,7 @@ MQTTPubSubClient mqtt;
 // Set Data pin for LED ring (we use GPIO3, which is also RX of the serial line)
 #define DATA_PIN 3
 const uint16_t PixelCount =  8;
-NeoPixelBus<NeoGrbFeature, NeoEsp8266Dma800KbpsMethod> strip(PixelCount, DATA_PIN);
+NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod > strip(PixelCount, DATA_PIN);
 
 long duration;  // here we measure the time needed by the ultrasonic pulse
 float distance; // the calculated distance
@@ -38,30 +38,61 @@ RgbColor blue(0, 0, colorSaturation);
 RgbColor white(colorSaturation);
 RgbColor black(0);
 
+
+
+void callback(char* topic, byte* payload, unsigned int length) {
+  Serial.print("Message arrived [");
+  Serial.print(topic);
+  Serial.print("] ");
+  for (int i = 0; i < length; i++) {
+    Serial.print((char)payload[i]);
+  }
+  Serial.println();
+
+  // Switch on the LED if an 1 was received as first character
+  if ((char)payload[0] == '1') {
+    digitalWrite(BUILTIN_LED, LOW);   // Turn the LED on (Note that LOW is the voltage level
+    // but actually the LED is on; this is because
+    // it is acive low on the ESP-01)
+  } else {
+    digitalWrite(BUILTIN_LED, HIGH);  // Turn the LED off by making the voltage HIGH
+  }
+}
+
 void setup() {
+  // Important to first initilizate Serial before the strip as
+  // we are useing the RX PIN to connect the strip
+  Serial.begin(115200);   // Baudrate: 115200
 
-    // start your network
-    WiFi.begin(wifi_ssid, wifi_password);
-    // connect to host
-    client.connect(mqtt_server, 1883);
-    // initialize mqtt client
-    mqtt.begin(client);
-    // connect to mqtt broker
-    mqtt.connect("arduino", "public", "public");
+  // start your network
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(wifi_ssid, wifi_password);
+  
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
 
-    // subscribe topic and callback which is called when /hello has come
-    mqtt.subscribe("/hello", [](const String& payload, const size_t size) {
-        Serial.print("/hello ");
-        Serial.println(payload);
-    });
+  randomSeed(micros());
+
+  Serial.println("");   Serial.println("WiFi connected");
+  Serial.println("IP address: ");  Serial.println(WiFi.localIP());
+  
+  // connect to host
+  client.connect(mqtt_server, 1883);
+  // initialize mqtt client
+  mqtt.begin(client);
+  // connect to mqtt broker
+  mqtt.connect("arduino", "public", "public");
+
+  // subscribe topic and callback which is called when /hello has come
+  mqtt.subscribe(mqtt_topic, [](const String& payload, const size_t size) {
+      Serial.print(mqtt_topic); Serial.println(payload);
+  });
 
   // Setup the ultrasonic sensor PIN
   pinMode(TRIG, OUTPUT);  // TRIG-Pin: Output
   pinMode(ECHO, INPUT);   // ECHO-Pin: Input
-
-  // Important to first initilizate Serial before the strip as
-  // we are useing the RX PIN to connect the strip
-  Serial.begin(9600);   // Baudrate: 115200
  
   // this resets all the neopixels to an off state
   strip.Begin();
@@ -121,11 +152,9 @@ void loop() {
   else {setRed(); }
   
   // Anzeige der Entfernung im seriellen Monitor
-  #ifdef DEBUG
   Serial.println("Poti: " + String(poti));
   Serial.println("Entfernung: " + String(distance) + "cm");
   Serial.println("Percent: " + String(percent) + " of goal value");
-  #endif
-  delay(100);
+  delay(1000);
   
 }