De pulsenteller werkt ondertussen vlekkeloos en nu hebben we er een Ethernet shield op gezet zodat het opzet zelfstandig kan werken.
We hebben er ook enkele temp sensoren bij gehangen om de status van de zonneboiler te meten en dan gelijk ook een warmluchtcollector 'sturing' bijgebouwd.
Dit alles werkt netjes 
... voor een paar uur en dan stopt de arduino ermee :~
Wel lastig om de oorzaak te vinden aangezien je een dag of een halve dag moet wachten bij elke verandering om te kijken of het nog mis loopt maar dat zie ik als onderdeel van de hobby ]
Mocht iemand interesse hebben hier is de code die ik verzonnen heb als daar grote hiaten in zitten hoor ik dat graag natuurlijk:
#include <OneWire.h>
#include <DallasTemperature.h>
#include <SPI.h>
#include <Ethernet.h>
// PIN definition
#define PULSEPIN 2 // kWh meter puls pin
#define ONE_WIRE_BUS 3 // temp data wire
#define FAN_RELAY 4 // fan for solar collector
#define ERROR_LED 5 // Error led
#define TEMP_VERSCHIL 10 // delta-T to activate keuken fa
// ethernet
byte mac[] = {
0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 };
char serverName[] = "emon.site";
EthernetClient client;
// temperature stuff
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress BruineThermometerKeuken = {
0x28, 0xE6, 0xAC, 0x00, 0x04, 0x00, 0x00, 0x09 };//bruin
DeviceAddress BlauweThermometerKeuken = {
0x28, 0x2D, 0xC5, 0x00, 0x04, 0x00, 0x00, 0x8C}; //blauw
// DeviceAddress BruineThermometer = { 0x28, 0x36, 0xD7, 0x00, 0x04, 0x00, 0x00, 0xD0 };//bruin
DeviceAddress BruineThermometer = {
0x28, 0xED, 0xD4, 0x00, 0x04, 0x00, 0x00, 0xA2 };//bruin
DeviceAddress BlauweThermometer = {
0x28, 0xFF, 0xDA, 0x00, 0x04, 0x00, 0x00, 0x35 }; //blauw
//interupt pulse counter
volatile unsigned int pulseCount1_10Wh = 0;
volatile unsigned long prevTime = 0;
int busy = 0;
// global variabeles
char urlStr[128];
/******************************************
* Pulse interupt handler
******************************************/
void onPulse1()
{
Serial.println("interupt");
if (millis() - prevTime < 5000){ // less than 5 sec ago?
return; // ignore irq
}
if ( digitalRead(PULSEPIN) == HIGH ) { // to flush false triggers
delay(10); //30 mili sec
if ( digitalRead(PULSEPIN) == HIGH ) { // still low
pulseCount1_10Wh++; // it must be a pulse
prevTime = millis();
Serial.println("PULS");
}
}
return;
}
/******************************************
* SETUP
******************************************/
void setup(void)
{
// start serial port
Serial.begin(9600); //start serial port
Serial.println("Hello");
sensors.begin(); // Start up the library
sensors.setResolution(BruineThermometerKeuken, 9); // set the resolution to 10 bit (good enough?)
sensors.setResolution(BlauweThermometerKeuken, 9);
sensors.setResolution(BruineThermometer, 9); // set the resolution to 10 bit (good enough?)
sensors.setResolution(BlauweThermometer, 9);
//sensors.requestTemperatures();
delay(3000);
pinMode(FAN_RELAY, OUTPUT);
pinMode(ERROR_LED, OUTPUT);
initEth();
delay(3000);
attachInterrupt(0,onPulse1,RISING);
}
/******************************************
* Initialise Ethernet
******************************************/
void initEth()
{
Serial.println("Init Ethernet");
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// no point in carrying on, so do nothing forevermore:
while(true);
}
// give the Ethernet shield a second to initialize:
delay(3000);
Serial.println("connecting...");
}
/******************************************
* get temperature from sensor
******************************************/
float getTemperature(DeviceAddress deviceAddress)
{
sensors.requestTemperatures();
float tempC = sensors.getTempC(deviceAddress);
if (tempC == -127.00) {
Serial.println("Failed to read temperature");
return (0);
}
Serial.print("Temp is:");
Serial.println(tempC);
return (tempC);
}
/******************************************
* Switch keuken ventilator
******************************************/
void fanControl()
{
float deltaT = getTemperature(BruineThermometerKeuken) - getTemperature(BlauweThermometerKeuken);
if (deltaT > TEMP_VERSCHIL){
digitalWrite(FAN_RELAY, HIGH);
}
else {
digitalWrite(FAN_RELAY, LOW);
}
}
/******************************************
* Format URL to update emon site
******************************************/
void sendData2()
{
if (client.connect(serverName, 80)) {
Serial.println("connected");
// Make a HTTP request:
//client.println("GET http://emoncms.org/input/post.json?json={power:**************** HTTP/1.0");
client.print("GET http://emoncms.org/input/post.json?node=2&csv=");
client.print(pulseCount1_10Wh*10*12); // avge Watt 5min
client.print(",");
client.print(getTemperature(BruineThermometer));
client.print(",");
client.print(getTemperature(BlauweThermometer));
client.print(",");
client.print(getTemperature(BruineThermometerKeuken));
client.print(",");
client.print(getTemperature(BlauweThermometerKeuken));
if ( digitalRead(FAN_RELAY) == HIGH ) { // fan on
client.print(",10");
}
else {
client.print(",0");
}
client.println("&apikey=***************** HTTP/1.0");
client.println();
Serial.println("read from server.");
while (client.available()) { // print response ...
char c = client.read();
Serial.print(c);
}
Serial.println("done sending data, disconnect from emon.");
client.stop(); //disconnect
pulseCount1_10Wh = 0; //reset counter
digitalWrite(ERROR_LED, LOW); // disable alarm
}
else {
digitalWrite(ERROR_LED, HIGH);
// kf you didn't get a connection to the server:
Serial.println("connection failed");
}
}
/******************************************
* Format URL to update emon site (1st attempt)
******************************************/
void sendData()
{
if (client.connect(serverName, 80)) {
Serial.println("start sending data to emon server :-) ");
// Make a HTTP request:
client.print("GET http://emoncms.org/input/post.json?node=2&cvs=0,");
//client.print("GET http://emoncms.org/input/post.json?json={power:220}");
client.print(pulseCount1_10Wh*10*12); // avge Watt 5min
client.print(",");
client.print(getTemperature(BruineThermometer));
client.print(",");
client.print(getTemperature(BlauweThermometer));
client.print(",");
client.print(getTemperature(BruineThermometerKeuken));
client.print(",");
client.print(getTemperature(BlauweThermometerKeuken));
if ( digitalRead(FAN_RELAY) == HIGH ) { // fan on
client.print(",10");
}
else {
client.print(",0");
}
client.println("&apikey=****************** HTTP/1.0");
client.println();
Serial.print("GET http://emoncms.org/input/post.json?node=2&csv=0,");
//Serial.print("GET http://emoncms.org/input/post.json?json={power:220}");
Serial.print(pulseCount1_10Wh*10*12); // avge Watt 5min
Serial.print(",");
Serial.print(getTemperature(BruineThermometer));
Serial.print(",");
Serial.print(getTemperature(BlauweThermometer));
Serial.print(",");
Serial.print(getTemperature(BruineThermometerKeuken));
Serial.print(",");
Serial.print(getTemperature(BlauweThermometerKeuken));
if ( digitalRead(FAN_RELAY) == HIGH ) { // fan on
Serial.print(",10");
}
else {
Serial.print(",0");
}
Serial.println("&apikey=**************** HTTP/1.0");
Serial.println("read from server.");
while (client.available()) { // print response ...
char c = client.read();
Serial.print(c);
}
Serial.println("done sending data, disconnect from emon.");
client.stop(); //disconnect
pulseCount1_10Wh = 0; //reset counter
}
else {
// if you didn't get a connection to the server:
Serial.println("cannot connect to emon server :-(");
}
}
/******************************************
* Main loop
******************************************/
void loop(void)
{
//delay(2000);
// Serial.print(",");
// Serial.println(getTemperature(BruineThermometer));
// Serial.println(",");
// Serial.println(getTemperature(BlauweThermometer));
//
for (int i = 0; i < 5; i++) { // loop 5 times/minutes
fanControl(); // check fan evry minute
Serial.println("check fan");
delay(60000); //60 000 =1min
}
Serial.println("send url");
sendData2(); // evry 5 mins update site
}