I'am trying to build some 3 in 1 ( motion / temp / hum ) incl. battery monitor .
At the moment i try to combine these sketches , as result
#include <SPI.h>
#include <MySensor.h>
#include <DHT.h>
int BATTERY_SENSE_PIN = A0; // select the input pin for the battery sense point
#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define CHILD_ID_MOT 2 // Id of the sensor child
#define HUMIDITY_SENSOR_DIGITAL_PIN 4
#define DIGITAL_INPUT_SENSOR 3 // The digital input you attached your motion sensor. (Only 2 and 3 generates interrupt!)
#define INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
int oldBatteryPcnt = 0;
MySensor gw;
DHT dht;
float lastTemp;
float lastHum;
boolean metric = true;
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgMot(CHILD_ID_MOT, V_TRIPPED);
void setup()
{
// use the 1.1 V internal reference
#if defined(__AVR_ATmega2560__)
analogReference(INTERNAL1V1);
#else
analogReference(INTERNAL);
#endif
gw.begin();
dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);
// Send the Sketch Version Information to the Gateway
gw.sendSketchInfo("Humidity/Motion", "1.0");
pinMode(DIGITAL_INPUT_SENSOR, INPUT); // sets the motion sensor digital pin as input
// Register all sensors to gw (they will be created as child devices)
gw.present(CHILD_ID_HUM, S_HUM);
gw.present(CHILD_ID_TEMP, S_TEMP);
gw.present(CHILD_ID_MOT, S_MOTION);
metric = gw.getConfig().isMetric;
}
void loop()
{
// 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
float batteryV = sensorValue * 0.003363075;
int batteryPcnt = sensorValue / 10;
#ifdef DEBUG
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
gw.sendBatteryLevel(batteryPcnt);
oldBatteryPcnt = batteryPcnt;
}
// Read digital motion value
boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;
Serial.println(tripped);
gw.send(msgMot.set(tripped?"1":"0")); // Send tripped value to gw
delay(dht.getMinimumSamplingPeriod());
float temperature = dht.getTemperature();
if (isnan(temperature)) {
Serial.println("Failed reading temperature from DHT");
} else if (temperature != lastTemp) {
lastTemp = temperature;
if (!metric) {
temperature = dht.toFahrenheit(temperature);
}
gw.send(msgTemp.set(temperature, 1));
Serial.print("T: ");
Serial.println(temperature);
}
float humidity = dht.getHumidity();
if (isnan(humidity)) {
Serial.println("Failed reading humidity from DHT");
} else if (humidity != lastHum) {
lastHum = humidity;
gw.send(msgHum.set(humidity, 1));
Serial.print("H: ");
Serial.println(humidity);
}
// Sleep until interrupt comes in on motion sensor. Send update every two minute.
gw.sleep(INTERRUPT,CHANGE, SLEEP_TIME);
}
Would this work ? ( sketch verification is okay 
)
