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rf22_datagram_client.pde

Client side of simple client/server pair using RF22Datagram class

// rf22_datagram_client.pde
// -*- mode: C++ -*-
// Example sketch showing how to create a simple addressed messaging client
// with the RF22Datagram class. RF22Datagram class does not provide for reliability.
// It is designed to work with the other example rf22_datagram_server
#include <RF22Datagram.h>
#include <RF22.h>
#include <SPI.h>
#define CLIENT_ADDRESS 1
#define SERVER_ADDRESS 2
// Singleton instance of the radio
RF22Datagram rf22(CLIENT_ADDRESS);
void setup()
{
Serial.begin(9600);
if (!rf22.init())
Serial.println("RF22 init failed");
// Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36
}
// Dont put this on the stack:
uint8_t buf[RF22_MAX_MESSAGE_LEN];
void loop()
{
while (1)
{
Serial.println("Sending to rf22_datagram_server");
// Send a message to rf22_server
uint8_t data[] = "Hello World!";
rf22.sendto(data, sizeof(data), SERVER_ADDRESS);
rf22.waitPacketSent();
// Now wait for a reply
if (rf22.waitAvailableTimeout(500))
{
// Should be a message for us now
uint8_t len = sizeof(buf);
uint8_t from;
uint8_t to;
if (rf22.recvfrom(buf, &len, &from, &to))
{
Serial.print("got reply from : 0x");
Serial.print(from, HEX);
Serial.print(": ");
Serial.println((char*)buf);
}
else
{
Serial.println("recv failed");
}
}
else
{
Serial.println("No reply, is rf22_datagram_server running?");
}
}
}