150 lines
6.1 KiB
C++
150 lines
6.1 KiB
C++
// Sample RFM69 sender/node sketch for the MotionMote
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// http://lowpowerlab.com/motion
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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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// Get the RFM69 and SPIFlash library at: https://github.com/LowPowerLab/
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// Make sure you adjust the settings in the configuration section below !!!
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// **********************************************************************************
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// Copyright Felix Rusu, LowPowerLab.com
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// Library and code by Felix Rusu - felix@lowpowerlab.com
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// **********************************************************************************
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// License
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// **********************************************************************************
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// This program is free software; you can redistribute it
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// and/or modify it under the terms of the GNU General
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// Public License as published by the Free Software
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// Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will
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// be useful, but WITHOUT ANY WARRANTY; without even the
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// implied warranty of MERCHANTABILITY or FITNESS FOR A
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// PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General
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// Public License along with this program.
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// If not, see <http://www.gnu.org/licenses/>.
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//
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// Licence can be viewed at
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// http://www.gnu.org/licenses/gpl-3.0.txt
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//
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// Please maintain this license information along with authorship
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// and copyright notices in any redistribution of this code
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// **********************************************************************************
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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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#include <LowPower.h> //get library from: https://github.com/lowpowerlab/lowpower
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//writeup here: http://www.rocketscream.com/blog/2011/07/04/lightweight-low-power-arduino-library/
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//*********************************************************************************************
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// *********** IMPORTANT SETTINGS - YOU MUST CHANGE/ONFIGURE TO FIT YOUR HARDWARE *************
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//*********************************************************************************************
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#define NODEID 88 //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! Remove/comment if you have RFM69W!
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//*********************************************************************************************
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#define ACK_TIME 30 // max # of ms to wait for an ack
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#define ONBOARDLED 9 // Moteinos have LEDs on D9
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#define EXTLED 5 // MotionOLEDMote has an external LED on D5
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#define BATT_MONITOR A7 // Sense VBAT_COND signal (when powered externally should read ~3.25v/3.3v (1000-1023), when external power is cutoff it should start reading around 2.85v/3.3v * 1023 ~= 880 (ratio given by 10k+4.7K divider from VBAT_COND = 1.47 multiplier)
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#define BATT_CYCLES 30 //read and report battery voltage every this many wakeup cycles (ex 30cycles * 8sec sleep = 240sec/4min)
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#define MOTIONPIN 1 //hardware interrupt 1 (D3)
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//#define SERIAL_EN //comment this out when deploying to an installed SM to save a few KB of sketch size
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#define SERIAL_BAUD 115200
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#ifdef SERIAL_EN
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#define DEBUG(input) {Serial.print(input); delay(1);}
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#define DEBUGln(input) {Serial.println(input); delay(1);}
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#else
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#define DEBUG(input);
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#define DEBUGln(input);
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#endif
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RFM69 radio;
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volatile boolean motionDetected=false;
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float batteryVolts = 5;
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char* BATstr="BAT:5.00v";
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char sendBuf[32];
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byte sendLen;
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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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pinMode(MOTIONPIN, INPUT);
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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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DEBUGln(buff);
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pinMode(ONBOARDLED, OUTPUT);
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pinMode(EXTLED, OUTPUT);
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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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byte batteryReportCycles=0;
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void loop() {
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checkBattery();
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if (motionDetected)
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{
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digitalWrite(EXTLED, HIGH);
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sprintf(sendBuf, "MOTION BAT:%sv", BATstr);
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sendLen = strlen(sendBuf);
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if (radio.sendWithRetry(GATEWAYID, sendBuf, sendLen))
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{
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DEBUG("MOTION ACK:OK! RSSI:");
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DEBUG(radio.RSSI);
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batteryReportCycles = 0;
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}
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else DEBUG("MOTION ACK:NOK...");
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DEBUG(" VIN: ");
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DEBUGln(BATstr);
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radio.sleep();
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digitalWrite(EXTLED, LOW);
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}
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else if (batteryReportCycles == BATT_CYCLES)
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{
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sprintf(sendBuf, "BAT:%sv", BATstr);
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sendLen = strlen(sendBuf);
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radio.send(GATEWAYID, sendBuf, sendLen);
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radio.sleep();
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batteryReportCycles=0;
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}
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motionDetected=false; //do NOT move this after the SLEEP line below or motion will never be detected
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LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_OFF);
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batteryReportCycles++;
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}
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byte cycleCount=BATT_CYCLES;
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void checkBattery()
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{
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if (cycleCount++ == BATT_CYCLES) //only read battery every BATT_CYCLES sleep cycles
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{
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unsigned int readings=0;
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for (byte i=0; i<10; i++) //take 10 samples, and average
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readings+=analogRead(BATT_MONITOR);
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batteryVolts = (readings / 10.0) * 0.00322 * 1.42;
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dtostrf(batteryVolts, 3,2, BATstr); //update the BATStr which gets sent every BATT_CYCLES or along with the MOTION message
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cycleCount = 0;
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}
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} |