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examples/rf22/rf22_server/rf22_server.ino

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+// rf22_server.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple messageing server
+// with the RH_RF22 class. RH_RF22 class does not provide for addressing or
+// reliability, so you should only use RH_RF22  if you do not need the higher
+// level messaging abilities.
+// It is designed to work with the other example rf22_client
+// Tested on Duemilanove, Uno with Sparkfun RFM22 wireless shield
+// Tested on Flymaple with sparkfun RFM22 wireless shield
+// Tested on ChiKit Uno32 with sparkfun RFM22 wireless shield
+
+#include <SPI.h>
+#include <RH_RF22.h>
+
+// Singleton instance of the radio driver
+RH_RF22 rf22;
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!rf22.init())
+    Serial.println("init failed");  
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+void loop()
+{
+  if (rf22.available())
+  {
+    // Should be a message for us now   
+    uint8_t buf[RH_RF22_MAX_MESSAGE_LEN];
+    uint8_t len = sizeof(buf);
+    if (rf22.recv(buf, &len))
+    {
+//      RF22::printBuffer("request: ", buf, len);
+      Serial.print("got request: ");
+      Serial.println((char*)buf);
+//      Serial.print("RSSI: ");
+//      Serial.println(rf22.lastRssi(), DEC);
+      
+      // Send a reply
+      uint8_t data[] = "And hello back to you";
+      rf22.send(data, sizeof(data));
+      rf22.waitPacketSent();
+      Serial.println("Sent a reply");
+    }
+    else
+    {
+      Serial.println("recv failed");
+    }
+  }
+}
+