re-implemented library. needs to be tested!

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

examples/SendAndReceive/SendAndReceive.ino

@@ -1,45 +1,18 @@
-/*
- This sketch demonstrates, how to use the SoftRS485 library.
- This library makes use of Arduinos timer 1
- */
-
 #include <SoftRS485.h>
 
-int count = 0;
-String message = "Message ";
-
 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
-
-  if (send485("Test")) {
-    // This should send "Test" if the line is free.
-    Serial.println("Test sent!");
-  }
-  if (!send485("Test2")) {
-    // This shoult fail, as transmission of "Test" should still be on the way
-    Serial.println("Test2 failed!");
+  init485(2,3,4,5);
+  speed485(8000);
+  boolean sent = false;
+  while (!sent) {
+    sent = send485("This message is sent and received!");
   }
 }
 
-void loop(){
-  if (available485()){ // check if we have received anything
-    Serial.print("messageReceived: ");
-    Serial.println(get485Message()); // read the received message
-
-    // send another message everytime we have received one
-    count++;
-    char msg[128];
-    (message+count).toCharArray(msg,128);
-    if (!send485(msg)){
-      Serial.print("Sending ");
-      Serial.print(msg);
-      Serial.println(" failed!");
-    }
+void loop() {
+  // put your main code here, to run repeatedly:
+  if (available485()){
+    Serial.println("Received "+get485message());
   }
 }