Problem: “RF22 init failed”
Hardware: RFM22 and an Arduino Uno
Software: Arduino IDE 0022
Code: RF22 Library for Arduino (http://www.open.com.au/mikem/arduino/RF22/index.html)
I’ve been using the RF22 library for Arduino to use the RFM22 module with some Arduino Pro Minis. Loads of fun. Now I’d like to include an Uno but I can’t get the radio to initialize. I’ve double and triple checked the wiring and the code. Anyone know if i need to do something special for this to work on an Uno?
// 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 SERVER_ADDRESS 0
#define CLIENT1_ADDRESS 1
// Singleton instance of the radio
RF22Datagram rf22(CLIENT2_ADDRESS);
void setup()
{
Serial.begin(9600);
if (!rf22.init())
Serial.println("RF22 init failed");
// Defaults after init are 434.0MHz, modulation GFSK_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?");
}
}
}