sure:
////////////const byte version = 27; // firmware version divided by 10 e,g 16 = V1.6
// These variables control the transmit timing of the emonTH
const unsigned long WDT_PERIOD = 80; // mseconds.
const unsigned long WDT_MAX_NUMBER = 690; // Data sent after WDT_MAX_NUMBER periods of WDT_PERIOD ms without pulses:
// 690x 80 = 55.2 seconds (it needs to be about 5s less than the record interval in emoncms)
const unsigned long PULSE_MAX_NUMBER = 100; // Data sent after PULSE_MAX_NUMBER pulses
const unsigned long PULSE_MAX_DURATION = 50;
#define RF69_COMPAT 1 // Set to 1 if using RFM69CW or 0 is using RFM12B
#include <JeeLib.h> // https://github.com/jcw/jeelib - Tested with JeeLib 3/11/14
const boolean debug=1; // Set to 1 to few debug serial output, turning debug off increases battery life
#define RF_freq RF12_433MHZ // Frequency of RF12B module can be RF12_433MHZ, RF12_868MHZ or RF12_915MHZ. You should use the one matching the module you have.
int nodeID = 10; // EmonTH temperature RFM12B node ID - should be unique on network
const int networkGroup = 210; // EmonTH RFM12B wireless network group - needs to be same as emonBase and emonGLCD
// DS18B20 resolution 9,10,11 or 12bit corresponding to (0.5, 0.25, 0.125, 0.0625 degrees C LSB),
// lower resolution means lower power
const int TEMPERATURE_PRECISION=12; // 9 (93.8ms),10 (187.5ms) ,11 (375ms) or 12 (750ms) bits equal to resplution of 0.5C, 0.25C, 0.125C and 0.0625C
#define ASYNC_DELAY 750 // 9bit requres 95ms, 10bit 187ms, 11bit 375ms and 12bit resolution takes 750ms
// See block comment above for library info
////////#include <avr/power.h>
////////#include <avr/sleep.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include "DHT.h"
////////ISR(WDT_vect) { Sleepy::watchdogEvent(); } // Attached JeeLib sleep function to Atmega328 watchdog -enables MCU to be put into sleep mode inbetween readings to reduce power consumption
// Hardwired emonTH pin allocations
////////const byte DS18B20_PWR= 5;
////////const byte DHT22_PWR= 6;
const byte LED= 9;
////////const byte BATT_ADC= 1;
////////const byte DIP_switch1= 7;
////////const byte DIP_switch2= 8;
const byte pulse_countINT= 1; // INT 1 / Dig 3 Screw Terminal Block Number 4 on emonTH V1.5 - Change to INT0 DIG2 on emonTH V1.4
const byte pulse_count_pin=3; // INT 1 / Dig 3 Screw Terminal Block Number 4 on emonTH V1.5 - Change to INT0 DIG2 on emonTH V1.4
#define ONE_WIRE_BUS 19
#define DHTPIN 18
// Humidity code adapted from ladyada' example // emonTh DHT22 data pin
// Uncomment whatever type you're using!
// #define DHTTYPE DHT11 // DHT 11
#define DHTTYPE DHT22 // DHT 22 (AM2302)
DHT dht(DHTPIN, DHTTYPE);
boolean DHT22_status; // create flag variable to store presence of DS18B20
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
boolean DS18B20; // create flag variable to store presence of DS18B20
// Note: Please update emonhub configuration guide on OEM wide packet structure change:
// https://github.com/openenergymonitor/emonhub/blob/emon-pi/configuration.md
typedef struct { // RFM12B RF payload datastructure
int temp;
int temp_external;
int humidity;
//////////// int battery;
unsigned long pulsecount;
} Payload;
Payload emonth;
int numSensors;
//addresses of sensors, MAX 4!!
byte allAddress [4][8]; // 8 bytes per address
volatile unsigned long pulseCount;
unsigned long WDT_number;
boolean p;
unsigned long now = 0;
//################################################################################################################################
//################################################################################################################################
void setup() {
//################################################################################################################################
pinMode(LED,OUTPUT); digitalWrite(LED,HIGH); // Status LED on
//READ DIP SWITCH POSITIONS - LOW when switched on (default off - pulled up high)
////////////pinMode(DIP_switch1, INPUT_PULLUP);
////////////pinMode(DIP_switch2, INPUT_PULLUP);
////////////boolean DIP1 = digitalRead(DIP_switch1);
////////////boolean DIP2 = digitalRead(DIP_switch2);
////////////if ((DIP1 == HIGH) && (DIP2 == HIGH)) nodeID=nodeID;
////////////if ((DIP1 == LOW) && (DIP2 == HIGH)) nodeID=nodeID+1;
////////////if ((DIP1 == HIGH) && (DIP2 == LOW)) nodeID=nodeID+2;
////////////if ((DIP1 == LOW) && (DIP2 == LOW)) nodeID=nodeID+3;
rf12_initialize(nodeID, RF_freq, networkGroup); // Initialize RFM12B
// Send RFM69CW test sequence (for factory testing)
for (int i=10; i>-1; i--)
{
emonth.temp=i;
rf12_sendNow(0, &emonth, sizeof emonth);
delay(100);
}
rf12_sendWait(2);
emonth.temp=0;
// end of factory test sequence
////////////rf12_sleep(RF12_SLEEP);
if (debug==1)
{
Serial.begin(9600);
//////////// Serial.print(DIP1); Serial.println(DIP2);
Serial.println("OpenEnergyMonitor.org");
////////////Serial.print("emonTH - Firmware V"); Serial.println(version*0.1);
#if (RF69_COMPAT)
Serial.println("RFM69CW Init> ");
#else
Serial.println("RFM12B Init> ");
#endif
Serial.print("Node: ");
Serial.print(nodeID);
Serial.print(" Freq: ");
if (RF_freq == RF12_433MHZ) Serial.print("433Mhz");
if (RF_freq == RF12_868MHZ) Serial.print("868Mhz");
if (RF_freq == RF12_915MHZ) Serial.print("915Mhz");
Serial.print(" Network: ");
Serial.println(networkGroup);
delay(100);
}
////////pinMode(DHT22_PWR,OUTPUT);
////////pinMode(DS18B20_PWR,OUTPUT);
////////////pinMode(BATT_ADC, INPUT);
////////digitalWrite(DHT22_PWR,LOW);
pinMode(pulse_count_pin, INPUT_PULLUP);
//################################################################################################################################
// Power Save - turn off what we don't need - http://www.nongnu.org/avr-libc/user-manual/group__avr__power.html
//################################################################################################################################
//////// ACSR |= (1 << ACD); // disable Analog comparator
////////if (debug==0) power_usart0_disable(); //disable serial UART
////////power_twi_disable(); //Disable the Two Wire Interface module.
// power_timer0_disable(); //don't disable necessary for the DS18B20 library
////////power_timer1_disable();
////////power_spi_disable();
//################################################################################################################################
// Test for presence of DHT22
//################################################################################################################################
////////digitalWrite(DHT22_PWR,HIGH);
////////dodelay(2000); // wait 2s for DH22 to warm up
dht.begin();
float h = dht.readHumidity(); // Read Humidity
float t = dht.readTemperature(); // Read Temperature
////////digitalWrite(DHT22_PWR,LOW); // Power down
if (isnan(t) || isnan(h)) // check if returns are valid, if they are NaN (not a number) then something went wrong!
{
Sleepy::loseSomeTime(1500);
float h = dht.readHumidity(); float t = dht.readTemperature();
if (isnan(t) || isnan(h))
{
if (debug==1) Serial.println("No DHT22");
DHT22_status=0;
}
}
else
{
DHT22_status=1;
if (debug==1) Serial.println("Detected DHT22");
}
//################################################################################################################################
// Setup and for presence of DS18B20
//################################################################################################################################
////////digitalWrite(DS18B20_PWR, HIGH); delay(50);
sensors.begin();
////////////sensors.setWaitForConversion(false); //disable automatic temperature conversion to reduce time spent awake, conversion will be implemented manually in sleeping http://harizanov.com/2013/07/optimizing-ds18b20-code-for-low-power-applications/
numSensors=(sensors.getDeviceCount());
byte j=0; // search for one wire devices and
// copy to device address arrays.
while ((j < numSensors) && (oneWire.search(allAddress[j]))) j++;
////////digitalWrite(DS18B20_PWR, LOW);
if (numSensors==0)
{
if (debug==1) Serial.println("No DS18B20");
DS18B20=0;
}
else
{
DS18B20=1;
if (debug==1) {
Serial.print("Detected "); Serial.print(numSensors); Serial.println(" DS18B20");
if (DHT22_status==1) Serial.println("DS18B20 & DHT22 found, assume DS18B20 is external");
}
}
if (debug==1) delay(200);
//################################################################################################################################
// Serial.print(DS18B20); Serial.print(DHT22_status);
// if (debug==1) delay(200);
digitalWrite(LED,LOW);
emonth.pulsecount = 0;
pulseCount = 0;
WDT_number=720;
p = 0;
attachInterrupt(pulse_countINT, onPulse, RISING);
} // end of setup
//################################################################################################################################
//################################################################################################################################
void loop()
//################################################################################################################################
{
if (p) {
Sleepy::loseSomeTime(PULSE_MAX_DURATION);
p=0;
}
if (Sleepy::loseSomeTime(WDT_PERIOD)==1) {
WDT_number++;
}
if (WDT_number>=WDT_MAX_NUMBER || pulseCount>=PULSE_MAX_NUMBER)
{
cli();
emonth.pulsecount += (unsigned int) pulseCount;
pulseCount = 0;
sei();
if (DS18B20==1)
{
////////digitalWrite(DS18B20_PWR, HIGH); dodelay(50);
for(int j=0;j<numSensors;j++) sensors.setResolution(allAddress[j], TEMPERATURE_PRECISION); // and set the a to d conversion resolution of each.
sensors.requestTemperatures(); // Send the command to get temperatures
dodelay(ASYNC_DELAY); //Must wait for conversion, since we use ASYNC mode
float temp=(sensors.getTempC(allAddress[0]));
//////// digitalWrite(DS18B20_PWR, LOW);
if ((temp<125.0) && (temp>-40.0))
{
if (DHT22_status==0) emonth.temp=(temp*10); // if DHT22 is not present assume DS18B20 is primary sensor (internal)
if (DHT22_status==1) emonth.temp_external=(temp*10); // if DHT22 is present assume DS18B20 is external sensor wired into terminal block
}
}
if (DHT22_status==1)
{
////////digitalWrite(DHT22_PWR,HIGH); // Send the command to get temperatures
////////dodelay(2000); //sleep for 1.5 - 2's to allow sensor to warm up
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
emonth.humidity = ((dht.readHumidity())*10);
float temp=(dht.readTemperature());
if ((temp<85.0) && (temp>-40.0)) emonth.temp = (temp*10);
////////digitalWrite(DHT22_PWR,LOW);
}
////////////emonth.battery=int(analogRead(BATT_ADC)*0.03225806); //read battery voltage, convert ADC to volts x10
//Enhanced battery monitoring mode. In this mode battery values
//sent in x*1000 mode instead of x*10. This allows to have more accurate
//values on emonCMS x.xx instead of x.x
// NOTE if you are going to enable this mode you need to
// 1. Disable x*10 mode. By commenting line above.
// 2. Change multiplier in line 353 Serial.print(emonth.battery/10.0);
// 3. Change scales factor in the emonhub node decoder entry for the emonTH
// See more https://community.openenergymonitor.org/t/emonth-battery-measurement-accuracy/1317
//emonth.battery=int(analogRead(BATT_ADC)*3.222);
if (debug==1)
{
if (DS18B20)
{
Serial.print("DS18B20 Temperature: ");
if (DHT22_status) Serial.print(emonth.temp_external/10.0);
if (!DHT22_status) Serial.print(emonth.temp/10.0);
Serial.print("C, ");
}
if (DHT22_status)
{
Serial.print("DHT22 Temperature: ");
Serial.print(emonth.temp/10.0);
Serial.print("C, DHT22 Humidity: ");
Serial.print(emonth.humidity/10.0);
Serial.print("%, ");
}
//////////// Serial.print("Battery voltage: ");
//////////// Serial.print(emonth.battery/10.0);
Serial.print("V, Pulse count: ");
Serial.print(emonth.pulsecount);
Serial.println("n");
unsigned long last = now;
now = millis();
delay(100);
}
////////////power_spi_enable();
////////////rf12_sleep(RF12_WAKEUP);
////////////dodelay(100);
rf12_sendNow(0, &emonth, sizeof emonth);
// set the sync mode to 2 if the fuses are still the Arduino default
// mode 3 (full powerdown) can only be used with 258 CK startup fuses
rf12_sendWait(2);
////////////rf12_sleep(RF12_SLEEP);
////////////dodelay(100);
////////////power_spi_disable();
//digitalWrite(LED,HIGH);
//dodelay(100);
//digitalWrite(LED,LOW);
WDT_number=0;
}
} // end loop
void dodelay(unsigned int ms)
{
////////////byte oldADCSRA=ADCSRA;
////////////byte oldADCSRB=ADCSRB;
////////////byte oldADMUX=ADMUX;
Sleepy::loseSomeTime(ms); // JeeLabs power save function: enter low power mode for x seconds (valid range 16-65000 ms)
////////////ADCSRA=oldADCSRA; // restore ADC state
////////////ADCSRB=oldADCSRB;
////////////ADMUX=oldADMUX;
}
// The interrupt routine - runs each time a rising edge of a pulse is detected
void onPulse()
{
p=1; // flag for new pulse set to true
pulseCount++; // number of pulses since the last RF sent
}