first commit

examples/rf22/rf22_client/rf22_client.ino

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+// rf22_client.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple messageing client
+// 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_server
+// 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()
+{
+  Serial.println("Sending to rf22_server");
+  // Send a message to rf22_server
+  uint8_t data[] = "Hello World!";
+  rf22.send(data, sizeof(data));
+  
+  rf22.waitPacketSent();
+  // Now wait for a reply
+  uint8_t buf[RH_RF22_MAX_MESSAGE_LEN];
+  uint8_t len = sizeof(buf);
+
+  if (rf22.waitAvailableTimeout(500))
+  { 
+    // Should be a reply message for us now   
+    if (rf22.recv(buf, &len))
+    {
+      Serial.print("got reply: ");
+      Serial.println((char*)buf);
+    }
+    else
+    {
+      Serial.println("recv failed");
+    }
+  }
+  else
+  {
+    Serial.println("No reply, is rf22_server running?");
+  }
+  delay(400);
+}

examples/rf22/rf22_cw/rf22_cw.ino

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+// rf22_cw.ino
+// -*- mode: C++ -*-
+// Example sketch showing how to emit a continuous carrier wave (CW)
+// for test purposes
+// Tested on Duemilanove, Uno with Sparkfun RFM22 wireless shieldg
+
+#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
+
+  // CW mode:
+  rf22.setModemConfig(RH_RF22::UnmodulatedCarrier);
+
+}
+
+void loop()
+{
+  rf22.setModeTx();
+  delay(1000);
+  rf22.setModeIdle();
+  delay(1000);
+}

examples/rf22/rf22_mesh_client/rf22_mesh_client.ino

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+// rf22_mesh_client.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging client
+// with the RHMesh class.
+// It is designed to work with the other examples rf22_mesh_server*
+// Hint: you can simulate other network topologies by setting the 
+// RH_TEST_NETWORK define in RHRouter.h
+
+// Mesh has much greater memory requirements, and you may need to limit the
+// max message length to prevent wierd crashes
+#define RH_MESH_MAX_MESSAGE_LEN 50
+
+#include <RHMesh.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHMesh manager(driver, CLIENT_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+uint8_t data[] = "Hello World!";
+// Dont put this on the stack:
+uint8_t buf[RH_MESH_MAX_MESSAGE_LEN];
+
+void loop()
+{
+  Serial.println("Sending to manager_mesh_server3");
+    
+  // Send a message to a rf22_mesh_server
+  // A route to the destination will be automatically discovered.
+  if (manager.sendtoWait(data, sizeof(data), SERVER3_ADDRESS) == RH_ROUTER_ERROR_NONE)
+  {
+    // It has been reliably delivered to the next node.
+    // Now wait for a reply from the ultimate server
+    uint8_t len = sizeof(buf);
+    uint8_t from;    
+    if (manager.recvfromAckTimeout(buf, &len, 3000, &from))
+    {
+      Serial.print("got reply from : 0x");
+      Serial.print(from, HEX);
+      Serial.print(": ");
+      Serial.println((char*)buf);
+    }
+    else
+    {
+      Serial.println("No reply, is rf22_mesh_server1, rf22_mesh_server2 and rf22_mesh_server3 running?");
+    }
+  }
+  else
+     Serial.println("sendtoWait failed. Are the intermediate mesh servers running?");
+}
+

examples/rf22/rf22_mesh_server1/rf22_mesh_server1.ino

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+// rf22_mesh_server1.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging server
+// with the RHMesh class.
+// It is designed to work with the other examples rf22_mesh_*
+// Hint: you can simulate other network topologies by setting the 
+// RH_TEST_NETWORK define in RHRouter.h
+
+// Mesh has much greater memory requirements, and you may need to limit the
+// max message length to prevent wierd crashes
+#define RH_MESH_MAX_MESSAGE_LEN 50
+
+#include <RHMesh.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHMesh manager(driver, SERVER1_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("RF22 init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+uint8_t data[] = "And hello back to you from server1";
+// Dont put this on the stack:
+uint8_t buf[RH_MESH_MAX_MESSAGE_LEN];
+void loop()
+{
+  uint8_t len = sizeof(buf);
+  uint8_t from;
+  if (manager.recvfromAck(buf, &len, &from))
+  {
+    Serial.print("got request from : 0x");
+    Serial.print(from, HEX);
+    Serial.print(": ");
+    Serial.println((char*)buf);
+
+    // Send a reply back to the originator client
+    if (manager.sendtoWait(data, sizeof(data), from) != RH_ROUTER_ERROR_NONE)
+      Serial.println("sendtoWait failed");
+  }
+}
+

examples/rf22/rf22_mesh_server2/rf22_mesh_server2.ino

@@ -0,0 +1,56 @@
+// rf22_mesh_server1.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging server
+// with the RHMesh class.
+// It is designed to work with the other examples rf22_mesh_*
+// Hint: you can simulate other network topologies by setting the 
+// RH_TEST_NETWORK define in RHRouter.h
+
+// Mesh has much greater memory requirements, and you may need to limit the
+// max message length to prevent wierd crashes
+#define RH_MESH_MAX_MESSAGE_LEN 50
+
+#include <RHMesh.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHMesh manager(driver, SERVER2_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("RF22 init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+uint8_t data[] = "And hello back to you from server2";
+// Dont put this on the stack:
+uint8_t buf[RH_MESH_MAX_MESSAGE_LEN];
+void loop()
+{
+  uint8_t len = sizeof(buf);
+  uint8_t from;
+  if (manager.recvfromAck(buf, &len, &from))
+  {
+    Serial.print("got request from : 0x");
+    Serial.print(from, HEX);
+    Serial.print(": ");
+    Serial.println((char*)buf);
+
+    // Send a reply back to the originator client
+    if (manager.sendtoWait(data, sizeof(data), from) != RH_ROUTER_ERROR_NONE)
+      Serial.println("sendtoWait failed");
+  }
+}
+

examples/rf22/rf22_mesh_server3/rf22_mesh_server3.ino

@@ -0,0 +1,56 @@
+// rf22_mesh_server3.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging server
+// with the RHMesh class.
+// It is designed to work with the other examples rf22_mesh_*
+// Hint: you can simulate other network topologies by setting the 
+// RH_TEST_NETWORK define in RHRouter.h
+
+// Mesh has much greater memory requirements, and you may need to limit the
+// max message length to prevent wierd crashes
+#define RH_MESH_MAX_MESSAGE_LEN 50
+
+#include <RHMesh.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHMesh manager(driver, SERVER3_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("RF22 init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+uint8_t data[] = "And hello back to you from server3";
+// Dont put this on the stack:
+uint8_t buf[RH_MESH_MAX_MESSAGE_LEN];
+void loop()
+{
+  uint8_t len = sizeof(buf);
+  uint8_t from;
+  if (manager.recvfromAck(buf, &len, &from))
+  {
+    Serial.print("got request from : 0x");
+    Serial.print(from, HEX);
+    Serial.print(": ");
+    Serial.println((char*)buf);
+
+    // Send a reply back to the originator client
+    if (manager.sendtoWait(data, sizeof(data), from) != RH_ROUTER_ERROR_NONE)
+      Serial.println("sendtoWait failed");
+  }
+}
+

examples/rf22/rf22_reliable_datagram_client/rf22_reliable_datagram_client.ino

@@ -0,0 +1,61 @@
+// rf22_reliable_datagram_client.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, reliable messaging client
+// with the RHReliableDatagram class, using the RH_RF22 driver to control a RF22 radio.
+// It is designed to work with the other example rf22_reliable_datagram_server
+// 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 <RHReliableDatagram.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+#define CLIENT_ADDRESS 1
+#define SERVER_ADDRESS 2
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+//RH_RF22 driver(5, 4); // ESP8266
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHReliableDatagram manager(driver, CLIENT_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+uint8_t data[] = "Hello World!";
+// Dont put this on the stack:
+uint8_t buf[RH_RF22_MAX_MESSAGE_LEN];
+
+void loop()
+{
+  Serial.println("Sending to rf22_reliable_datagram_server");
+    
+  // Send a message to manager_server
+  if (manager.sendtoWait(data, sizeof(data), SERVER_ADDRESS))
+  {
+    // Now wait for a reply from the server
+    uint8_t len = sizeof(buf);
+    uint8_t from;   
+    if (manager.recvfromAckTimeout(buf, &len, 2000, &from))
+    {
+      Serial.print("got reply from : 0x");
+      Serial.print(from, HEX);
+      Serial.print(": ");
+      Serial.println((char*)buf);
+    }
+    else
+    {
+      Serial.println("No reply, is rf22_reliable_datagram_server running?");
+    }
+  }
+  else
+    Serial.println("sendtoWait failed");
+  delay(500);
+}

examples/rf22/rf22_reliable_datagram_server/rf22_reliable_datagram_server.ino

@@ -0,0 +1,56 @@
+// rf22_reliable_datagram_server.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, reliable messaging server
+// with the RHReliableDatagram class, using the RH_RF22 driver to control a RF22 radio.
+// It is designed to work with the other example rf22_reliable_datagram_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 <RHReliableDatagram.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+#define CLIENT_ADDRESS 1
+#define SERVER_ADDRESS 2
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+//RH_RF22 driver(5, 4); // ESP8266
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHReliableDatagram manager(driver, SERVER_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+uint8_t data[] = "And hello back to you";
+// Dont put this on the stack:
+uint8_t buf[RH_RF22_MAX_MESSAGE_LEN];
+
+void loop()
+{
+  if (manager.available())
+  {
+    // Wait for a message addressed to us from the client
+    uint8_t len = sizeof(buf);
+    uint8_t from;
+    if (manager.recvfromAck(buf, &len, &from))
+    {
+      Serial.print("got request from : 0x");
+      Serial.print(from, HEX);
+      Serial.print(": ");
+      Serial.println((char*)buf);
+
+      // Send a reply back to the originator client
+      if (!manager.sendtoWait(data, sizeof(data), from))
+        Serial.println("sendtoWait failed");
+    }
+  }
+}
+

examples/rf22/rf22_router_client/rf22_router_client.ino

@@ -0,0 +1,72 @@
+// rf22_router_client.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging client
+// with the RHRouter class.
+// It is designed to work with the other examples rf22_router_server*
+
+#include <RHRouter.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+// messages are routed via intermediate nodes to their destination
+// node. All nodes can act as routers
+// CLIENT_ADDRESS <-> SERVER1_ADDRESS <-> SERVER2_ADDRESS<->SERVER3_ADDRESS
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHRouter manager(driver, CLIENT_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+  
+  // Manually define the routes for this network
+  manager.addRouteTo(SERVER1_ADDRESS, SERVER1_ADDRESS);  
+  manager.addRouteTo(SERVER2_ADDRESS, SERVER2_ADDRESS);
+  manager.addRouteTo(SERVER3_ADDRESS, SERVER3_ADDRESS);
+}
+
+uint8_t data[] = "Hello World!";
+// Dont put this on the stack:
+uint8_t buf[RH_ROUTER_MAX_MESSAGE_LEN];
+
+void loop()
+{
+  Serial.println("Sending to rf22_router_server3");
+    
+  // Send a message to a rf22_router_server
+  // It will be routed by the intermediate
+  // nodes to the destination node, accorinding to the
+  // routing tables in each node
+  if (manager.sendtoWait(data, sizeof(data), SERVER3_ADDRESS) == RH_ROUTER_ERROR_NONE)
+  {
+    // It has been reliably delivered to the next node.
+    // Now wait for a reply from the ultimate server
+    uint8_t len = sizeof(buf);
+    uint8_t from;    
+    if (manager.recvfromAckTimeout(buf, &len, 3000, &from))
+    {
+      Serial.print("got reply from : 0x");
+      Serial.print(from, HEX);
+      Serial.print(": ");
+      Serial.println((char*)buf);
+    }
+    else
+    {
+      Serial.println("No reply, is rf22_router_server1, rf22_router_server2 and rf22_router_server3 running?");
+    }
+  }
+  else
+    Serial.println("sendtoWait failed. Are the intermediate router servers running?");
+}
+

examples/rf22/rf22_router_server1/rf22_router_server1.ino

@@ -0,0 +1,59 @@
+// rf22_router_server1.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging server
+// with the RHRouter class.
+// It is designed to work with the other example rf22_router_client
+
+#include <RHRouter.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+// messages are routed via intermediate nodes to their destination
+// node. All nodes can act as routers
+// CLIENT_ADDRESS <-> SERVER1_ADDRESS <-> SERVER2_ADDRESS<->SERVER3_ADDRESS
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHRouter manager(driver, SERVER1_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+  
+  // Manually define the routes for this network
+  manager.addRouteTo(CLIENT_ADDRESS, CLIENT_ADDRESS);  
+  manager.addRouteTo(SERVER2_ADDRESS, SERVER2_ADDRESS);
+  manager.addRouteTo(SERVER3_ADDRESS, SERVER2_ADDRESS);
+}
+
+uint8_t data[] = "And hello back to you from server1";
+// Dont put this on the stack:
+uint8_t buf[RH_ROUTER_MAX_MESSAGE_LEN];
+
+void loop()
+{
+  uint8_t len = sizeof(buf);
+  uint8_t from;
+  if (manager.recvfromAck(buf, &len, &from))
+  {
+    Serial.print("got request from : 0x");
+    Serial.print(from, HEX);
+    Serial.print(": ");
+     Serial.println((char*)buf);
+
+    // Send a reply back to the originator client
+    if (manager.sendtoWait(data, sizeof(data), from) != RH_ROUTER_ERROR_NONE)
+      Serial.println("sendtoWait failed");
+  }
+}
+

examples/rf22/rf22_router_server2/rf22_router_server2.ino

@@ -0,0 +1,59 @@
+// rf22_router_server2.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging server
+// with the RHRouter class.
+// It is designed to work with the other example rf22_router_client
+
+#include <RHRouter.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+// messages are routed via intermediate nodes to their destination
+// node. All nodes can act as routers
+// CLIENT_ADDRESS <-> SERVER1_ADDRESS <-> SERVER2_ADDRESS<->SERVER3_ADDRESS
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHRouter manager(driver, SERVER2_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+  
+  // Manually define the routes for this network
+  manager.addRouteTo(CLIENT_ADDRESS, CLIENT_ADDRESS);  
+  manager.addRouteTo(SERVER2_ADDRESS, SERVER2_ADDRESS);
+  manager.addRouteTo(SERVER3_ADDRESS, SERVER2_ADDRESS);
+}
+
+uint8_t data[] = "And hello back to you from server2";
+// Dont put this on the stack:
+uint8_t buf[RH_ROUTER_MAX_MESSAGE_LEN];
+
+void loop()
+{
+  uint8_t len = sizeof(buf);
+  uint8_t from;
+  if (manager.recvfromAck(buf, &len, &from))
+  {
+    Serial.print("got request from : 0x");
+    Serial.print(from, HEX);
+    Serial.print(": ");
+     Serial.println((char*)buf);
+
+    // Send a reply back to the originator client
+    if (manager.sendtoWait(data, sizeof(data), from) != RH_ROUTER_ERROR_NONE)
+      Serial.println("sendtoWait failed");
+  }
+}
+

examples/rf22/rf22_router_server3/rf22_router_server3.ino

@@ -0,0 +1,59 @@
+// rf22_router_server3.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple addressed, routed reliable messaging server
+// with the RHRouter class.
+// It is designed to work with the other example rf22_router_client
+
+#include <RHRouter.h>
+#include <RH_RF22.h>
+#include <SPI.h>
+
+// In this small artifical network of 4 nodes,
+// messages are routed via intermediate nodes to their destination
+// node. All nodes can act as routers
+// CLIENT_ADDRESS <-> SERVER1_ADDRESS <-> SERVER2_ADDRESS<->SERVER3_ADDRESS
+#define CLIENT_ADDRESS 1
+#define SERVER1_ADDRESS 2
+#define SERVER2_ADDRESS 3
+#define SERVER3_ADDRESS 4
+
+// Singleton instance of the radio
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHRouter manager(driver, SERVER3_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+  
+  // Manually define the routes for this network
+  manager.addRouteTo(CLIENT_ADDRESS, CLIENT_ADDRESS);  
+  manager.addRouteTo(SERVER2_ADDRESS, SERVER2_ADDRESS);
+  manager.addRouteTo(SERVER3_ADDRESS, SERVER2_ADDRESS);
+}
+
+uint8_t data[] = "And hello back to you from server3";
+// Dont put this on the stack:
+uint8_t buf[RH_ROUTER_MAX_MESSAGE_LEN];
+
+void loop()
+{
+  uint8_t len = sizeof(buf);
+  uint8_t from;
+  if (manager.recvfromAck(buf, &len, &from))
+  {
+    Serial.print("got request from : 0x");
+    Serial.print(from, HEX);
+    Serial.print(": ");
+     Serial.println((char*)buf);
+
+    // Send a reply back to the originator client
+    if (manager.sendtoWait(data, sizeof(data), from) != RH_ROUTER_ERROR_NONE)
+      Serial.println("sendtoWait failed");
+  }
+}
+

examples/rf22/rf22_router_test/rf22_router_test.ino

@@ -0,0 +1,102 @@
+// rf22_router_test.pde
+// -*- mode: C++ -*-
+//
+// Test code used during library development, showing how
+// to do various things, and how to call various functions
+
+#include <SPI.h>
+#include <RHRouter.h>
+#include <RH_RF22.h>
+
+#define CLIENT_ADDRESS 1
+#define ROUTER_ADDRESS 2
+#define SERVER_ADDRESS 3
+
+// Singleton instance of the radio driver
+RH_RF22 driver;
+
+// Class to manage message delivery and receipt, using the driver declared above
+RHRouter manager(driver, CLIENT_ADDRESS);
+
+void setup() 
+{
+  Serial.begin(9600);
+  if (!manager.init())
+    Serial.println("RF22 init failed");
+  // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
+}
+
+void test_routes()
+{
+  manager.clearRoutingTable();
+//  manager.printRoutingTable();
+  manager.addRouteTo(1, 101);
+  manager.addRouteTo(2, 102);
+  manager.addRouteTo(3, 103);
+  RHRouter::RoutingTableEntry* e;
+  e = manager.getRouteTo(0);
+  if (e) // Should fail
+    Serial.println("getRouteTo 0 failed");
+    
+  e = manager.getRouteTo(1);
+  if (!e)
+    Serial.println("getRouteTo 1 failed");
+  if (e->dest != 1)
+    Serial.println("getRouteTo 2 failed");
+  if (e->next_hop != 101)
+    Serial.println("getRouteTo 3 failed");
+  if (e->state != RHRouter::Valid)
+    Serial.println("getRouteTo 4 failed");
+    
+  e = manager.getRouteTo(2);
+  if (!e)
+    Serial.println("getRouteTo 5 failed");
+  if (e->dest != 2)
+    Serial.println("getRouteTo 6 failed");
+  if (e->next_hop != 102)
+    Serial.println("getRouteTo 7 failed");
+  if (e->state != RHRouter::Valid)
+    Serial.println("getRouteTo 8 failed");
+    
+  if (!manager.deleteRouteTo(1))
+      Serial.println("deleteRouteTo 1 failed");
+  // Route to 1 should now be gone
+  e = manager.getRouteTo(1);
+  if (e)
+    Serial.println("deleteRouteTo 2 failed");
+    
+  Serial.println("-------------------");
+
+//  manager.printRoutingTable();
+  delay(500);
+
+}
+
+uint8_t data[] = "Hello World!";
+// Dont put this on the stack:
+//uint8_t buf[RH_RF22_MAX_MESSAGE_LEN];
+
+void test_tx()
+{
+  manager.addRouteTo(SERVER_ADDRESS, ROUTER_ADDRESS);
+  uint8_t errorcode;
+  errorcode = manager.sendtoWait(data, sizeof(data), 100); // Should fail with no route
+  if (errorcode != RH_ROUTER_ERROR_NO_ROUTE)
+    Serial.println("sendtoWait 1 failed");
+  errorcode = manager.sendtoWait(data, 255, 10); // Should fail too big
+  if (errorcode != RH_ROUTER_ERROR_INVALID_LENGTH)
+    Serial.println("sendtoWait 2 failed");   
+  errorcode = manager.sendtoWait(data, sizeof(data), SERVER_ADDRESS); // Should fail after timeouts to 110
+  if (errorcode != RH_ROUTER_ERROR_UNABLE_TO_DELIVER)
+    Serial.println("sendtoWait 3 failed");
+  Serial.println("-------------------");
+  delay(500);
+}
+
+void loop()
+{
+//  test_routes();
+  test_tx();
+}
+
+

examples/rf22/rf22_server/rf22_server.ino

@@ -0,0 +1,53 @@
+// 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");
+    }
+  }
+}
+