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--- en:iot:examples:encoder [2018/02/27 14:07] – Somepub
+++ en:iot:examples:encoder [2021/03/05 10:00] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Encoder example ======
 The encoder sensor device has to be connected to the sensor module. Encoder sensor device has a two 3,5 mm plugs what has to be connected to the sensor module 3,5 mm input jackets. The controller and sensor modules must be connected.
 {{:en:iot:examples:encoderpicture1.jpg?200|}}
@@ Line 12: / Line 12: @@
 Needed libraries
-<code>lib_deps = ITTIoT, Encoder</code>
+<code>lib_deps = ITTIoT, ClickEncoder</code>
-The example code will print out encoder current position value
+The example code will print out and send to the broker encoder’s current position value. The value increases when rotating in one direction and decreases when rotating in another direction. Additionally, the encoder wheel has a switch, and if it is pushed, then the message will be sent to the serial port.
-<code c>
+<code c>
 #include <Arduino.h>
 #include <ittiot.h>
 #include <Ticker.h>
+#include <ClickEncoder.h>
-#include <Encoder.h>
+#define WIFI_NAME "name"
+#define WIFI_PASSWORD "password"
-#define ENC_PIN_1 12
+// Defining pins as need for the encoder
-#define ENC_PIN_2 13
+#define ENC_PINA 12
+#define ENC_PINB 13
+#define ENC_BTN   0
+#define ENC_STEPS_PER_NOTCH 4
+ClickEncoder encoder = ClickEncoder(ENC_PINA, ENC_PINB, ENC_BTN, ENC_STEPS_PER_NOTCH);
-Encoder myEnc(ENC_PIN_1, ENC_PIN_2);
 Ticker encTicker;
-long oldPosition  = -999;
 bool encFlag;
+uint16_t button;
+// Function started after the connection to the server is established.
 void iot_connected()
 {
@@ Line 45: / Line 51: @@
 void setup()
 {
-  Serial.begin(115200);
+  Serial.begin(115200); // setting up serial connection parameter
   Serial.println("Booting");
-  iot.printConfig(); // print json config to serial //Peale Serial.begin ja enne iot.setup
-  iot.setup();
+  //iot.setConfig("wname", WIFI_NAME);
+  //iot.setConfig("wpass", WIFI_PASSWORD);
+  iot.printConfig(); // print json config to serial
+  iot.setup(); // Initialize IoT library
+  // Activating additional button functions
+  encoder.setButtonHeldEnabled(true);
+  encoder.setDoubleClickEnabled(true);
   encTicker.attach(1, setEncFlag);
 }
+//Main code, which runs in loop
 void loop()
 {
-  iot.handle();
+  iot.handle(); // IoT behind the plan work, it should be periodically called
+  delay(10); // wait for 0.01 second
+  static uint32_t lastService = 0;
-  // Send encoder reading to the serial port, when it changes
+  // Sending message “Button”, when the analogue value is bigger less then 100
-  long newPosition = myEnc.read();
+  if(analogRead(A0) < 100)
-  if (newPosition != oldPosition)
   {
-    oldPosition = newPosition;
+    Serial.println( "button");
-    Serial.print("Encoder: ");
-    Serial.println(newPosition);
   }
-  // Send encoder reading to server
+  if (lastService + 1000 < micros())
+  {
+    lastService = micros();
+    encoder.service();
+  }
+  static int16_t last, value;
+  value += encoder.getValue();
+  // Send encoder reading to serial monitor, if it has changed
+  if(value != last)
+  {
+    last = value;
+    Serial.print("Encoder Value: ");
+    Serial.println(value);
+  }
+  // Publishing encoder value in MQTT broker
   if(encFlag)
   {
       encFlag = false;
-      String msg = String(newPosition);
+      String msg = String(value);
       iot.publishMsg("enc", msg.c_str());
   }
 }
 </code>

en/iot/examples/encoder.1519740458.txt.gz · Last modified: 2020/07/20 09:00 (external edit)