Wemos D1 examples

D1 mini/On_Air/On_Air.ino

@@ -2,6 +2,8 @@
 #include <ESP8266WebServer.h>
 
 
+// FIXME BUILTIN_LED muss heißen LED_BUILTIN - https://desertbot.io/blog/d1-mini-blink
+
 const int optocoupler = D2;
 
 const char* ssid = "LeWe";
@@ -39,6 +41,8 @@ void setup() {
   Serial.println();
   Serial.print("IP address: ");
   Serial.println(WiFi.localIP());
+  WiFi.setAutoReconnect(true);
+  WiFi.persistent(true);
   digitalWrite(BUILTIN_LED, HIGH);
 
   server.on("/click", handle_click);

D1 mini/blink/blink.ino

@@ -0,0 +1,14 @@
+// Source: https://desertbot.io/blog/d1-mini-blink
+
+void setup() {
+  pinMode(LED_BUILTIN, OUTPUT);
+}
+
+void loop() {
+  digitalWrite(LED_BUILTIN, HIGH);   // Arduino: turn the LED on (HIGH)
+                                     // D1 Mini: turns the LED *off*
+  delay(1000);                       // wait for a second
+  digitalWrite(LED_BUILTIN, LOW);    // Arduino: turn the LED off (LOW)
+                                     // D1 Mini: turns the LED *on*
+  delay(1000);                       // wait for a second
+}

D1 mini/d1_eeprom/d1_eeprom.ino

@@ -0,0 +1,93 @@
+/*
+ * https://forum.arduino.cc/t/esp8266-eeprom/631650/10
+ * https://docs.arduino.cc/learn/built-in-libraries/eeprom#put
+ */
+
+#include <EEPROM.h>
+
+using Container = byte[4];
+
+
+
+struct EpData // eine Datensammlung im EEPROM
+{
+  int kram;
+  Container container;
+  bool flagge;
+  // usw
+};
+
+Container satzA {'a','b','c','d'}; // beispieldaten
+Container satzB {'w','x','y','z'};  // beispieldaten
+
+struct MyObject {
+  float field1;
+  byte field2;
+  char name[10];
+};
+
+MyObject obj1 {1.111f, 42, "siarp"};
+
+
+
+
+
+void setup(void)
+{
+  EEPROM.begin(512); // Um Speicherplatz zu sparen, sollte der Pufferspeicher nicht größer als notwendig initialisiert werden. Die Maximale Größe beträgt 4096.
+  Serial.begin(9600);
+  
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+/*  Serial.println();
+  Serial.println();
+  Serial.println(" Menue");
+  Serial.println(" a) schreibt satzA");
+  Serial.println(" b) schreibt satzB");
+  Serial.println(" p) liest EEPROM und zeigt den Inhalt");
+  
+  Serial.println();
+  Serial.println();*/
+
+//  EEPROM.put(0, obj1);
+//  EEPROM.commit();
+
+  MyObject rObj;
+  EEPROM.get(0, rObj);
+
+  Serial.println("Read custom object from EEPROM:");
+  Serial.println(rObj.field1);
+  Serial.println(rObj.field2);
+  Serial.println(rObj.name);
+
+}
+
+
+void loop(void)
+{/*
+  switch(Serial.read())
+  {
+    case 'a':  EEPROM.put(offsetof(EpData,container),satzA);
+               EEPROM.commit();
+               Serial.println(" SatzA geschrieben");
+               break;
+               
+    case 'b':  EEPROM.put(offsetof(EpData,container),satzB);
+               EEPROM.commit();
+               Serial.println(" SatzB geschrieben");
+               break;
+               
+    case 'p':   Serial.println(" Satz lesen ");
+                Container gelesenerSatz;
+                EEPROM.get(offsetof(EpData,container),gelesenerSatz );
+                for(byte g:gelesenerSatz)
+                {
+                  Serial.print(g); 
+                  Serial.print(',');
+                }
+                Serial.println();
+                break;
+  }*/
+}

WS2812/WS2812.ino

@@ -0,0 +1,54 @@
+#include <Adafruit_NeoPixel.h>
+
+#define PIN D2
+#define NUMPIXELS 1
+
+Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
+
+void setup()
+{
+  Serial.begin(9600);
+  delay(250);
+  Serial.println("PIXEL");
+  
+  pixels.begin(); // This initializes the NeoPixel library.
+}
+
+void loop()
+{
+  pixels.setBrightness(20); //die Helligkeit setzen 0 dunkel -> 255 ganz hell
+  pixels.setPixelColor(0, pixels.Color(255, 255, 255));
+  pixels.show();
+  delay(1000);
+
+  pixels.setBrightness(80); //die Helligkeit setzen 0 dunkel -> 255 ganz hell
+  pixels.setPixelColor(0, pixels.Color(255, 255, 255));
+  pixels.show();
+  delay(1000);
+
+  pixels.setPixelColor(0, pixels.Color(226, 0, 200));
+  for (int i = 1; i <= 250; i++) {
+    pixels.setBrightness(i);
+    pixels.show();
+    delay(20);
+  }
+
+  pixels.setBrightness(20);
+  for (int hsv = 0; hsv < 65535; hsv++) {
+    pixels.setPixelColor(0, pixels.gamma32(pixels.ColorHSV(hsv)));
+    pixels.show();
+    delay(1);
+  }
+
+  
+//  // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
+//  for (int i = 0; i < 2; i++) {
+//    for (int j = 0; j < 2; j++) {
+//      for (int k = 0; k < 2; k++) {
+//        pixels.setPixelColor(0, pixels.Color(i * 255, j * 255, k * 255)); // Moderately bright green color.
+//        pixels.show(); // This sends the updated pixel color to the hardware.
+//        delay(200); // Delay for a period of time (in milliseconds).
+//      }
+//    }
+//  }
+}