69 lines
2.2 KiB
Arduino
69 lines
2.2 KiB
Arduino
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// Sample RFM69 sender/node sketch for motion sensor
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// PIR motion sensor connected to D3 (INT1)
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// When RISE happens on D3, the sketch transmits a "MOTION" msg to receiver Moteino and goes back to sleep
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// In sleep mode, Moteino + PIR motion sensor use about ~78uA
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// Library and code by Felix Rusu - felix@lowpowerlab.com
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// Get the RFM69 and SPIFlash 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> //get it here: https://github.com/lowpowerlab/spiflash
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#include <LowPower.h> //get library from: https://github.com/LowPowerLab/LowPower
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#define NODEID 18 //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_868MHZ
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#define FREQUENCY RF69_915MHZ
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#define ENCRYPTKEY "sampleEncryptKey" //exactly the same 16 characters/bytes on all nodes!
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//#define IS_RFM69HW //uncomment only for RFM69HW! Leave out if you have RFM69W!
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#define ACK_TIME 30 // max # of ms to wait for an ack
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#define LED 9 // Moteinos have LEDs on D9
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#define SERIAL_BAUD 115200
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#define MOTIONPIN 1 //hardware interrupt 1 (D3)
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RFM69 radio;
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volatile boolean motionDetected=false;
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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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attachInterrupt(MOTIONPIN, motionIRQ, RISING);
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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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void motionIRQ()
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{
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motionDetected=true;
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}
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void loop() {
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if (motionDetected)
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{
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if (radio.sendWithRetry(GATEWAYID, "MOTION", 6))
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{
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Serial.println(" ok!");
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Blink(LED,3);
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}
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else Serial.println(" nothing...");
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motionDetected=false;
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}
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radio.sleep();
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LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_OFF);
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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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