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--- arduino:arduino [2020/07/27 21:44] – [MQTT] tmade
+++ arduino:arduino [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
@@ Line 1: / Line 1: @@
-=====Arduino=====
-The Arduino IDE you can get here:
-https://www.arduino.cc/en/Main/Software
-Setup esp8266:
-https://dzone.com/articles/programming-the-esp8266-with-the-arduino-ide-in-3
-==== Irrigation System ====
-Enhanced code to control a waterpump, a display and an "Capacitive Soil Moisture Sensor".
-  *Display shows a diagramm in %
-  *Sensor values
-  *dry or wet
-  *% value
-<code sh Irrigation.ino>
-//Irrigation
-//version 1.2
-//by tmade
-#include <SPI.h>
-#include <Wire.h>
-#include <Adafruit_GFX.h>
-#include <Adafruit_SSD1306.h>
-#define SCREEN_WIDTH 128 // OLED display width, in pixels
-#define SCREEN_HEIGHT 64 // OLED display height, in pixels
-// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
-#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
-Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
-//Adafruit_SSD1306 display(-1);
-//variables
-int SLEEP = 1;
-const int DRY = 694;
-const int WET = 344;
-int sensorValue = 0;
-int rectangle = 0;
-const int X = 10;
-const int Y = 1;
-const int WIDTH = 35;
-const int HEIGHT = 63;
-void setup() {
-  // put your setup code here, to run once:
-  Serial.begin(9600);
-  //to debug set to 115200 !!
-  //Serial.begin(115200);
-  digitalWrite(0, 1);
-  pinMode (2, OUTPUT);
-  digitalWrite(2, 1);
-  // initialize with the I2C addr 0x3C
-  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
-  // Clear the buffer.
-  display.clearDisplay();
-  display.setTextSize(2);
-  display.setTextColor(WHITE);
-  //Define the position where the text starts using the setCursor(x,y) method
-  display.setCursor(0,20);
-  display.println("Startup..");
-  display.display();
-  delay(4000);
-}
-void loop() {
-  // put your main code here, to run repeatedly:
-  display.clearDisplay();
-  int sensorValue=analogRead(A0);
-  int val = analogRead(0);
-  val = map(val, DRY, WET, 0, 100);
-  delay(200);
-  int rectangle = analogRead(0);
-  rectangle = map(rectangle, DRY, WET, 1, 63);
-  delay(200);
-// debugging & examples
-/*
-  Serial.print("rectanglevalue: ");
-  Serial.println(rectangle);
-  analogWrite(9, val);
-  Serial.print("Dry: ");
-  Serial.println(WET);
-  Serial.print("Wet: ");
-  Serial.println(WET);
-  delay(200);
-*/
-  SLEEP = SLEEP-1;
-  if ((sensorValue > 570) && (SLEEP < 2))
-  {
-    display.clearDisplay();
-    // drawRect(x, y, width, height, color)
-    display.drawRoundRect(X, Y, WIDTH, HEIGHT, 2, WHITE);
-    display.fillRoundRect(X, Y, WIDTH, rectangle, 2, WHITE);
-    display.setTextSize(2);
-    display.setTextColor(WHITE);
-    display.setCursor(60,5);
-    display.println("dry!");
-    display.setCursor(60,25);
-    display.setTextSize(2);
-    display.println(sensorValue);
-    display.setCursor(60,45);
-    display.setTextSize(2);
-    display.print(val);
-    display.println(" %");
-    // write the buffer to the display
-    display.display();
-    delay(200);
-    Serial.print("sensorValue: ");
-    Serial.println(sensorValue);
-    Serial.println("Pump On");
-    // 0 = LOW = ON
-    digitalWrite(2,0);
-    //set pump duration per loop in milliseconds
-    delay(5000);
-    // 1 = HIGH = OFF
-    digitalWrite(2,1);
-    Serial.println("Pump Off");
-    delay(200);
-    //set wait until next check
-    SLEEP = 60;
-  }
-   else if (sensorValue < 571)
-  {
-    Serial.print("sensorValue: ");
-    Serial.println(sensorValue);
-    Serial.print("humidity: ");
-    Serial.print(val);
-    Serial.println(" %");
-    Serial.println("Sensor is wet");
-    delay(1000);
-    // Display
-    display.clearDisplay();
-    // drawRect(x, y, width, height, color)
-    display.drawRoundRect(X, Y, WIDTH, HEIGHT, 2, WHITE);
-    display.fillRoundRect(X, Y, WIDTH, rectangle, 2, WHITE);
-    display.setTextSize(2);
-    display.setTextColor(WHITE);
-    display.setCursor(60,5);
-    display.println("wet!");
-    display.setCursor(60,25);
-    display.setTextSize(2);
-    display.println(sensorValue);
-    display.setCursor(60,45);
-    display.setTextSize(2);
-    display.print(val);
-    display.println(" %");
-    // write the buffer to the display
-    display.display();
-    delay(1000);
-  }
-  else if (SLEEP > 2)
-  {
-    display.clearDisplay();
-    // drawRect(x, y, width, height, color)
-    display.drawRoundRect(X, Y, WIDTH, HEIGHT, 2, WHITE);
-    display.fillRoundRect(X, Y, WIDTH, rectangle, 2, WHITE);
-    display.setTextSize(2);
-    display.setTextColor(WHITE);
-    display.setCursor(60,5);
-    display.println("dry!");
-    display.setCursor(60,25);
-    display.setTextSize(2);
-    display.println(sensorValue);
-    display.setCursor(60,45);
-    display.setTextSize(2);
-    display.print(val);
-    display.println(" %");
-    // write the buffer to the display
-    display.display();
-    delay(200);
-    Serial.print("sensorValue: ");
-    Serial.println(sensorValue);
-    Serial.print("humidity: ");
-    Serial.print(val);
-    Serial.println(" %");
-    Serial.println("Sensor is dry");
-    Serial.print("wait another: ");
-    Serial.print(SLEEP);
-    Serial.println(" seconds");
-    delay(200);
-  }
-}
-</code>
-==== Alles & nichts ====
-Code to control a waterpump, a display and an "Capacitive Soil Moisture Sensor".
-Many thanks to "Alles & nichts" for sharing this code! :-)
-Have also a look on:
-https://www.youtube.com/watch?v=sRStuXpqiQ4
-<code>
-/*
-VCC = 5 Volt cap sens
-VCC = 3,3 Volt Relais
--------------------------------------------------------------*/
-#include <SPI.h>
-#include <Wire.h>
-#include <Adafruit_GFX.h>
-#include <Adafruit_SSD1306.h>
-Adafruit_SSD1306 display(-1);
-/*
-const unsigned char Smiley_lachen [] PROGMEM = {
-};
-const unsigned char Smiley_middle [] PROGMEM = {
-};
-const unsigned char Smiley_traurig [] PROGMEM = {
-};*/
-/*const int waterValue= 400;
-const int moistValue= 600;
-const int dryValue = 850;
-const int pumpON = 660;*/
-int val = 1;
-void setup() {
-  // put your setup code here, to run once:
-  Serial.begin(9600);
-  digitalWrite(0, 1);
-  pinMode (2, OUTPUT);
-  digitalWrite(2, 1);
-  // initialize with the I2C addr 0x3C
-  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
-  // Clear the buffer.
-  display.clearDisplay();
-  //display.invertDisplay(1);
-  // symbol_leer
-  display.drawRoundRect(0, 14, 30, 50, 5, WHITE);
-  display.display();
-  delay(2000);
-  // symbol_viertelvoll
-  display.fillRoundRect(0, 14, 30, 12.5, 2, WHITE);
-  display.display();
-  delay(2000);
-  // symbol_halbvoll
-  display.fillRoundRect(0, 14, 30, 25, 2, WHITE);
-  display.display();
-  delay(2000);
-  // symbol_dreiviertelvoll
-  display.fillRoundRect(0, 14, 30, 38, 2, WHITE);
-  display.display();
-  delay(2000);
-  // symbol_voll
-  display.fillRoundRect(0, 14, 30, 50, 2, WHITE);
-  display.display();
-  delay(2000);
-}
-void loop() {
-  // put your main code here, to run repeatedly:
-  display.clearDisplay();
-  int sensorValue=analogRead(A0);
-  Serial.println(sensorValue);
-  delay(200);
-  //display.println(sensorValue);
-  if (sensorValue > 570)
-  {
-  //val=!val;
-  display.drawRoundRect(0, 14, 30, 50, 5, WHITE);
-  display.display();
-  digitalWrite(2,0); // 0 bzw. LOW = AN
-  }
-  else if ((sensorValue < 550) && (sensorValue > 500))
-  {
-  display.fillRoundRect(0, 14, 30, 12.5, 2, WHITE);
-  display.display();
-  }
-  else if ((sensorValue < 500) && (sensorValue > 450))
-  {
-  display.fillRoundRect(0, 14, 30, 38, 2, WHITE);
-  display.display();
-  }
-  else if (sensorValue < 450)
-  {
-  display.fillRoundRect(0, 14, 30, 50, 2, WHITE);
-  display.display();
-  digitalWrite(2,1);  // 1 bzw. HIGH = AUS
-  }
-    display.setTextSize(2);
-    display.setTextColor(WHITE);
-    display.setCursor(50,20);
-    display.println(sensorValue);
-    display.display();
-    delay(200);
-}
-</code>
-==== Another example ====
-http://hyperdramatik.net/mediawiki/index.php?title=Bew%C3%A4sserungsanlage_mit_Arduino_Uno_und_DIY-Feuchtigkeitssensor
-<code>
-void setup() {
-     Serial.begin(9600);
-     pinMode(A0, OUTPUT); //Default pinMode einstellung auf INPUT/OUTPUT
- digitalWrite(A0, HIGH);
-}
-void loop() {
-     int sensor = analogRead(A1);
-     Serial.println(sensor);
-     //SENSOR FEUCHT - 500
-     //SENSOR TROCKEN - 0
-     delay(1000);
-     if (sensor < 430 ) {
-          //Relais einschalten
-          digitalWrite(A0, LOW);
-          Serial.println("Pumpe AN");
-          //2 Sekunden anlassen
-          delay(2000);
-          //Relais ausschalten
-          digitalWrite(A0, HIGH);
-           Serial.println("Pumpe Aus");
-          //10 Sekunden warten
-          delay(10000);
-     }
-}
-</code>
-====Display====
-https://randomnerdtutorials.com/guide-for-oled-display-with-arduino/
-To check HEX-adress of your display - which has to be referenced - please run this sketch:
-<code sh oled-test.ino>
-/*********
-  Rui Santos
-  Complete project details at https://randomnerdtutorials.com
-*********/
-#include <Wire.h>
-void setup() {
-  Wire.begin();
-  Serial.begin(115200);
-  Serial.println("\nI2C Scanner");
-}
-void loop() {
-  byte error, address;
-  int nDevices;
-  Serial.println("Scanning...");
-  nDevices = 0;
-  for(address = 1; address < 127; address++ ) {
-    Wire.beginTransmission(address);
-    error = Wire.endTransmission();
-    if (error == 0) {
-      Serial.print("I2C device found at address 0x");
-      if (address<16) {
-        Serial.print("0");
-      }
-      Serial.println(address,HEX);
-      nDevices++;
-    }
-    else if (error==4) {
-      Serial.print("Unknow error at address 0x");
-      if (address<16) {
-        Serial.print("0");
-      }
-      Serial.println(address,HEX);
-    }
-  }
-  if (nDevices == 0) {
-    Serial.println("No I2C devices found\n");
-  }
-  else {
-    Serial.println("done\n");
-  }
-  delay(200);
-}
-</code>
-**Note:** You have to change baud rate in serial monitor to "115200" to get the result!!
-====MQTT====
-To send a message to a mqtt server:
-https://diy.waziup.io/sensors/publish_using_MQTT/publish_using_MQTT.html
-https://github.com/plapointe6/EspMQTTClient                                      #authentication example!