neu-implementierung. Funktioniert einigermaßen, interferiert aber mit anderen timer-basierten bibliotheken

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

examples/ReceiveDemo/ReceiveDemo.ino

@@ -0,0 +1,24 @@
+/*
+ This sketch demonstrates, how to use the SoftRS485 library.
+ This library makes use of Arduinos timer 1
+ */
+
+#include <SoftRS485.h>
+
+void setup() {
+  Serial.begin(115200);
+
+  init485(2,3,4,5); // library initialization:
+  // connect pin 2 to RO of Max485
+  // connect pin 3 to ^RE of Max485
+  // connect pin 4 to DE of Max485
+  // connect pin 5 to DI of Max485
+
+}
+
+void loop(){
+  if (available485()){ // check if we have received anything
+    Serial.print("messageReceived: ");
+    Serial.println(get485Message()); // read the received message
+  }
+}

examples/SendAndReceive/SendAndReceive.ino

@@ -27,9 +27,6 @@ void setup() {
   }
 }
 
-void messageReceived(String message){
-}
-
 void loop(){
   if (available485()){ // check if we have received anything
     Serial.print("messageReceived: ");
@@ -39,6 +36,10 @@ void loop(){
     count++;
     char msg[128];
     (message+count).toCharArray(msg,128);
-    send485(msg);
+    if (!send485(msg)){
+      Serial.print("Sending ");
+      Serial.print(msg);
+      Serial.println(" failed!");
+    }
   }
 }

examples/SendButton/SendButton.ino

@@ -0,0 +1,33 @@
+/*
+ This sketch demonstrates, how to use the SoftRS485 library.
+ This library makes use of Arduinos timer 1
+ */
+
+#include <SoftRS485.h>
+
+const int buttonPin = 10;     // the number of the pushbutton pin
+boolean button_state = true;
+
+void setup() {
+  Serial.begin(115200);
+
+  init485(2,3,4,5); // library initialization:
+  // connect pin 2 to RO of Max485
+  // connect pin 3 to ^RE of Max485
+  // connect pin 4 to DE of Max485
+  // connect pin 5 to DI of Max485
+
+  pinMode(buttonPin, INPUT_PULLUP);
+}
+
+void loop(){
+  boolean new_state = digitalRead(buttonPin);
+  if (new_state != button_state){
+    button_state = new_state;
+    if (new_state == LOW){
+      send485("Button pressed");
+    } else {
+      send485("Button released");
+    }
+  }
+}