Pro tip1: the error is often a line before the line that the compiler complains about. So don't always focus on the highlighted line :)
Pro tip2: Use Tools->Auto Format in the Arduino IDE to make the code more readable. In this case, auto format would probably have made the error more visible because the could would have looked like this after auto-format:
/**
* The MySensors Arduino library handles the wireless radio link and protocol
* between your home built sensors/actuators and HA controller of choice.
* The sensors forms a self healing radio network with optional repeaters. Each
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
* network topology allowing messages to be routed to nodes.
*
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
* Copyright (C) 2013-2015 Sensnology AB
* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
*******************************
*
* DESCRIPTION
*
* Interrupt driven binary switch example with dual interrupts
* Author: Patrick 'Anticimex' Fallberg
* Connect one button or door/window reed switch between
* digitial I/O pin 3 (BUTTON_PIN below) and GND and the other
* one in similar fashion on digital I/O pin 2.
* This example is designed to fit Arduino Nano/Pro Mini
*
*/
// Enable debug prints to serial monitor
#define MY_DEBUG
// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
#include <DallasTemperature.h>
#include <OneWire.h>
#include <SPI.h>
#include <MySensor.h>
#define SKETCH_NAME "Binary Sensor+temp"
#define SKETCH_MAJOR_VER "1"
#define SKETCH_MINOR_VER "0"
#define PRIMARY_CHILD_ID 3
#define SECONDARY_CHILD_ID 4
#define COMPARE_TEMP 1 // Send temperature only if changed? 1 = Yes 0 = No
#define ONE_WIRE_BUS 3 // Pin where dallase sensor is connected
#define MAX_ATTACHED_DS18B20 16
#define PRIMARY_BUTTON_PIN 3 // Arduino Digital I/O pin for button/reed switch
//#define SECONDARY_BUTTON_PIN 7 // Arduino Digital I/O pin for button/reed switch
OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
DallasTemperature sensors(&oneWire); // Pass the oneWire reference to Dallas Temperature.
float lastTemperature[MAX_ATTACHED_DS18B20];
int numSensors = 0;
boolean receivedConfig = false;
boolean metric = true;
#if (PRIMARY_BUTTON_PIN < 2 || PRIMARY_BUTTON_PIN > 3)
#error PRIMARY_BUTTON_PIN must be either 2 or 3 for interrupts to work
#endif
//#if (SECONDARY_BUTTON_PIN < 2 || SECONDARY_BUTTON_PIN > 3)
//#error SECONDARY_BUTTON_PIN must be either 2 or 3 for interrupts to work
//#endif
#if (PRIMARY_BUTTON_PIN == SECONDARY_BUTTON_PIN)
#error PRIMARY_BUTTON_PIN and BUTTON_PIN2 cannot be the same
#endif
#if (PRIMARY_CHILD_ID == SECONDARY_CHILD_ID)
#error PRIMARY_CHILD_ID and SECONDARY_CHILD_ID cannot be the same
#endif
// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msg(PRIMARY_CHILD_ID, V_LIGHT);
MyMessage msg2(SECONDARY_CHILD_ID, V_TEMP);
int BATTERY_SENSE_PIN = A0; // select the input pin for the battery sense point
unsigned long SLEEP_TIME = 600000; // sleep time between reads (seconds * 1000 milliseconds)
int oldBatteryPcnt = 0;
void setup()
{
// Startup up the OneWire library
sensors.begin();
// requestTemperatures() will not block current thread
sensors.setWaitForConversion(false);
#if defined(__AVR_ATmega2560__)
analogReference(INTERNAL1V1);
#else
analogReference(INTERNAL);
#endif
// Setup the buttons
pinMode(PRIMARY_BUTTON_PIN, INPUT);
// pinMode(SECONDARY_BUTTON_PIN, INPUT);
// Activate internal pull-ups
digitalWrite(PRIMARY_BUTTON_PIN, HIGH);
// digitalWrite(SECONDARY_BUTTON_PIN, HIGH);
}
void presentation() {
// Send the sketch version information to the gateway and Controller
sendSketchInfo(SKETCH_NAME, SKETCH_MAJOR_VER "." SKETCH_MINOR_VER);
// Register binary input sensor to sensor_node (they will be created as child devices)
// You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
// If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
//numSensors = sensors.getDeviceCount();
// Present all sensors to controller
//for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {
}
present(PRIMARY_CHILD_ID, S_LIGHT);
present(SECONDARY_CHILD_ID, S_TEMP);
}
// Loop will iterate on changes on the BUTTON_PINs
void loop()
{
uint8_t value;
static uint8_t sentValue = 2;
static uint8_t sentValue2 = 2;
// Short delay to allow buttons to properly settle
sleep(5);
value = digitalRead(PRIMARY_BUTTON_PIN);
if (value != sentValue) {
// Value has changed from last transmission, send the updated value
send(msg.set(value == HIGH ? 1 : 0));
sentValue = value;
}
// value = digitalRead(SECONDARY_BUTTON_PIN);
//
// if (value != sentValue2) {
// // Value has changed from last transmission, send the updated value
// send(msg2.set(value==HIGH ? 1 : 0));
// sentValue2 = value;
// }
// Fetch temperatures from Dallas sensors
sensors.requestTemperatures();
// query conversion time and sleep until conversion completed
int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
// sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
sleep(conversionTime);
// Read temperatures and send them to controller
for (int i = 0; i < numSensors && i < MAX_ATTACHED_DS18B20; i++) {
// Fetch and round temperature to one decimal
float temperature = static_cast<float>(static_cast<int>((getConfig().isMetric ? sensors.getTempCByIndex(i) : sensors.getTempFByIndex(i)) * 10.)) / 10.;
// Only send data if temperature has changed and no error
#if COMPARE_TEMP == 1
if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
#else
if (temperature != -127.00 && temperature != 85.00) {
#endif
// Send in the new temperature
send(msg.setSensor(i).set(temperature, 1));
// Save new temperatures for next compare
lastTemperature[i] = temperature;
}
// get the battery Voltage
int sensorValue = analogRead(BATTERY_SENSE_PIN);
#ifdef DEBUG
Serial.println(sensorValue);
#endif
// 1M, 470K divider across battery and using internal ADC ref of 1.1V
// Sense point is bypassed with 0.1 uF cap to reduce noise at that point
// ((1e6+470e3)/470e3)*1.1 = Vmax = 3.44 Volts
// 3.44/1023 = Volts per bit = 0.003363075
int batteryPcnt = sensorValue / 10;
#ifdef DEBUG
float batteryV = sensorValue * 0.003363075;
Serial.print("Battery Voltage: ");
Serial.print(batteryV);
Serial.println(" V");
Serial.print("Battery percent: ");
Serial.print(batteryPcnt);
Serial.println(" %");
#endif
if (oldBatteryPcnt != batteryPcnt) {
// Power up radio after sleep
sendBatteryLevel(batteryPcnt);
oldBatteryPcnt = batteryPcnt;
}
}
// Sleep until something happens with the sensor
sleep(PRIMARY_BUTTON_PIN - 2, CHANGE, SLEEP_TIME);
}
