RadioHead
rf24_server.pde
// rf24_server.pde
// -*- mode: C++ -*-
// Example sketch showing how to create a simple messageing server
// with the RH_RF24 class. RH_RF24 class does not provide for addressing or
// reliability, so you should only use RH_RF24 if you do not need the higher
// level messaging abilities.
// It is designed to work with the other example rf24_client
// Tested on Anarduino Mini http://www.anarduino.com/mini/ with RFM24W and RFM26W
#include <SPI.h>
#include <RH_RF24.h>
// Singleton instance of the radio driver
RH_RF24 rf24;
void setup()
{
Serial.begin(9600);
if (!rf24.init())
Serial.println("init failed");
// The default radio config is for 30MHz Xtal, 434MHz base freq 2GFSK 5kbps 10kHz deviation
// power setting 0x10
// If you want a different frequency mand or modulation scheme, you must generate a new
// radio config file as per the RH_RF24 module documentation and recompile
// You can change a few other things programatically:
//rf24.setFrequency(435.0); // Only within the same frequency band
//rf24.setTxPower(0x7f);
}
void loop()
{
if (rf24.available())
{
// Should be a message for us now
uint8_t buf[RH_RF24_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);
if (rf24.recv(buf, &len))
{
// RF24::printBuffer("request: ", buf, len);
Serial.print("got request: ");
Serial.println((char*)buf);
// Serial.print("RSSI: ");
// Serial.println((uint8_t)rf24.lastRssi(), DEC);
// Send a reply
uint8_t data[] = "And hello back to you";
rf24.send(data, sizeof(data));
rf24.waitPacketSent();
Serial.println("Sent a reply");
}
else
{
Serial.println("recv failed");
}
}
}