94 lines
2.7 KiB
Arduino
94 lines
2.7 KiB
Arduino
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// Sample RFM69 random temperature sender at fixed intervals (F)
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// Library and code by Felix Rusu - felix@lowpowerlab.com
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// Get the RFM69 library at: https://github.com/LowPowerLab/
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#include <RFM69.h> //get it here: https://www.github.com/lowpowerlab/rfm69
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#include <SPI.h>
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#define NODEID 98 //unique for each node on same network
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#define NETWORKID 100 //the same on all nodes that talk to each other
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#define GATEWAYID 1
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//Match frequency to the hardware version of the radio on your Moteino (uncomment one):
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#define FREQUENCY RF69_433MHZ
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#define FREQUENCY RF69_915MHZ
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#define IS_RFM69HW //uncomment only for RFM69HW! Leave out if you have RFM69W!
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#define ENCRYPTKEY "sampleEncryptKey" //exactly the same 16 characters/bytes on all nodes!
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#define ACK_TIME 30 // max # of ms to wait for an ack
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#ifdef __AVR_ATmega1284P__
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#define LED 15 // Moteino MEGAs have LEDs on D15
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#define FLASH_SS 23 // and FLASH SS on D23
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#else
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#define LED 9 // Moteinos have LEDs on D9
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#define FLASH_SS 8 // and FLASH SS on D8
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#endif
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#define SERIAL_BAUD 115200
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int TRANSMITPERIOD = 10000; //transmit a packet to gateway so often (in ms)
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char buff[35];
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byte sendSize=0;
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RFM69 radio;
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void setup() {
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Serial.begin(SERIAL_BAUD);
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radio.initialize(FREQUENCY,NODEID,NETWORKID);
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#ifdef IS_RFM69HW
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radio.setHighPower(); //uncomment only for RFM69HW!
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#endif
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radio.encrypt(ENCRYPTKEY);
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char buff[50];
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sprintf(buff, "\nTransmitting at %d Mhz...", FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915);
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Serial.println(buff);
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}
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long lastPeriod = 0;
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long randNumber1 = 0;
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long randNumber2 = 0;
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void loop() {
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if (radio.receiveDone())
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{
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Serial.print('[');Serial.print(radio.SENDERID, DEC);Serial.print("] ");
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for (byte i = 0; i < radio.DATALEN; i++)
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Serial.print((char)radio.DATA[i]);
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Serial.print(" [RX_RSSI:");Serial.print(radio.RSSI);Serial.print("]");
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if (radio.ACKRequested())
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{
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radio.sendACK();
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Serial.print(" - ACK sent");
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}
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Blink(LED,3);
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Serial.println();
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}
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int currPeriod = millis()/TRANSMITPERIOD;
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if (currPeriod != lastPeriod)
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{
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lastPeriod=currPeriod;
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randNumber1 = random(99);
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randNumber2 = random(99);
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if (randNumber2 > 70)
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sprintf(buff, "F:%d.5", randNumber1);
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else
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sprintf(buff, "F:-%d.5", randNumber1);
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sendSize = strlen(buff);
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if (radio.sendWithRetry(GATEWAYID, buff, sendSize))
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Serial.print(" ok!");
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else Serial.print(" nothing...");
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Serial.println();
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Blink(LED,3);
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}
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}
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void Blink(byte PIN, int DELAY_MS)
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{
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pinMode(PIN, OUTPUT);
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digitalWrite(PIN,HIGH);
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delay(DELAY_MS);
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digitalWrite(PIN,LOW);
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}
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