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#include <RFM69.h>
#include <SPI.h>
#include <SPIFlash.h>
#define NODEID 99
#define NETWORKID 100
#define GATEWAYID 1
#define FREQUENCY RF69_433MHZ //Match this with the version of your Moteino! (others: RF69_433MHZ, RF69_868MHZ)
#define KEY "sampleEncryptKey" //has to be same 16 characters/bytes on all nodes, not more not less!
#define LED 9
#define SERIAL_BAUD 115200
#define ACK_TIME 30 // # of ms to wait for an ack
#define IS_RFM69HW_HCW //uncomment only for RFM69HW/HCW! Leave out if you have RFM69W/CW!
int TRANSMITPERIOD = 300; //transmit a packet to gateway so often (in ms)
byte sendSize=0;
boolean requestACK = false;
SPIFlash flash(8, 0xEF30); //EF40 for 16mbit windbond chip
RFM69 radio;
typedef struct {
int nodeId; //store this nodeId
unsigned long uptime; //uptime in ms
float temp; //temperature maybe?
} Payload;
Payload theData;
void setup() {
Serial.begin(SERIAL_BAUD);
radio.initialize(FREQUENCY,NODEID,NETWORKID);
#ifdef IS_RFM69HW_HCW
radio.setHighPower(); //must include this only for RFM69HW/HCW!
#endif
radio.encrypt(KEY);
char buff[50];
sprintf(buff, "\nTransmitting at %d Mhz...", FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915);
Serial.println(buff);
if (flash.initialize())
Serial.println("SPI Flash Init OK!");
else
Serial.println("SPI Flash Init FAIL! (is chip present?)");
}
long lastPeriod = -1;
void loop() {
//process any serial input
if (Serial.available() > 0)
{
char input = Serial.read();
if (input >= 48 && input <= 57) //[0,9]
{
TRANSMITPERIOD = 100 * (input-48);
if (TRANSMITPERIOD == 0) TRANSMITPERIOD = 1000;
Serial.print("\nChanging delay to ");
Serial.print(TRANSMITPERIOD);
Serial.println("ms\n");
}
if (input == 'r') //d=dump register values
radio.readAllRegs();
//if (input == 'E') //E=enable encryption
// radio.encrypt(KEY);
//if (input == 'e') //e=disable encryption
// radio.encrypt(null);
if (input == 'd') //d=dump flash area
{
Serial.println("Flash content:");
int counter = 0;
while(counter<=256){
Serial.print(flash.readByte(counter++), HEX);
Serial.print('.');
}
while(flash.busy());
Serial.println();
}
if (input == 'e')
{
Serial.print("Erasing Flash chip ... ");
flash.chipErase();
while(flash.busy());
Serial.println("DONE");
}
if (input == 'i')
{
Serial.print("DeviceID: ");
word jedecid = flash.readDeviceId();
Serial.println(jedecid, HEX);
}
}
//check for any received packets
if (radio.receiveDone())
{
Serial.print('[');Serial.print(radio.SENDERID, DEC);Serial.print("] ");
for (byte i = 0; i < radio.DATALEN; i++)
Serial.print((char)radio.DATA[i]);
Serial.print(" [RX_RSSI:");Serial.print(radio.readRSSI());Serial.print("]");
if (radio.ACKRequested())
{
radio.sendACK();
Serial.print(" - ACK sent");
delay(10);
}
Blink(LED,5);
Serial.println();
}
int currPeriod = millis()/TRANSMITPERIOD;
if (currPeriod != lastPeriod)
{
//fill in the struct with new values
theData.nodeId = NODEID;
theData.uptime = millis();
theData.temp = 91.23; //it's hot!
Serial.print("Sending struct (");
Serial.print(sizeof(theData));
Serial.print(" bytes) ... ");
if (radio.sendWithRetry(GATEWAYID, (const void*)(&theData), sizeof(theData)))
Serial.print(" ok!");
else Serial.print(" nothing...");
Serial.println();
Blink(LED,3);
lastPeriod=currPeriod;
}
}
void Blink(byte PIN, int DELAY_MS)
{
pinMode(PIN, OUTPUT);
digitalWrite(PIN,HIGH);
delay(DELAY_MS);
digitalWrite(PIN,LOW);
}