Hi,
I have problems with my pachube feed.
I use a Arduino Duemilanove with a w5100 Ethernetshield and a DS18S20 to upload the temp every 10 seconds to pachube.com
It works, but after 1-3 hours the upload freezes.
When i reset the Arduino with reset button it works again for some time.
I tried to give power with USB (first thougt USB from PC would go to a standby mode) and also with an external power source, but the same.
The realy strange is, when it´s freezed and I connect with the serial monitor, it also works again.
maybe I have a overflow, or my ethernetshield is not the best (cheap ebay one)
here is the code:
#include <SPI.h>
#include <Ethernet.h>
#include <Pachube.h>
#include <OneWire.h>
OneWire ds(8); // on pin 8
byte mac[] = {0x90, 0xA2, 0xDA, 0x00, 0x10, 0x8f};
char apiKey[] = "YOUURKEYYOURKEYg_qmTPo_nUVsCeXS6yUTWITMIxaVf";
long feedId = 44942;
char datastreamId[] = "stisi";
long prevMillis = 0;
float celsius;
PachubeClient client = PachubeClient(apiKey);
void setup()
{
Serial.begin(9600);
client.connectWithMac(mac);
}
void loop()
{
unsigned long curMillis = millis();
if(curMillis - prevMillis > 10000)
{
byte i;
byte present = 0;
byte type_s;
byte data[12];
byte addr[8];
if ( !ds.search(addr)) {
ds.reset_search();
delay(250);
return;
}
Serial.println();
// the first ROM byte indicates which chip
switch (addr[0]) {
case 0x10:
Serial.println(" Chip = DS18S20"); // or old DS1820
type_s = 1;
break;
case 0x28:
Serial.println(" Chip = DS18B20");
type_s = 0;
break;
case 0x22:
Serial.println(" Chip = DS1822");
type_s = 0;
break;
default:
Serial.println("Device is not a DS18x20 family device.");
return;
}
ds.reset();
ds.select(addr);
ds.write(0x44,1); // start conversion, with parasite power on at the end
delay(1000); // maybe 750ms is enough, maybe not
// we might do a ds.depower() here, but the reset will take care of it.
present = ds.reset();
ds.select(addr);
ds.write(0xBE); // Read Scratchpad
for ( i = 0; i < 9; i++) { // we need 9 bytes
data[i] = ds.read();
}
// convert the data to actual temperature
unsigned int raw = (data[1] << 8) | data[0];
if (type_s) {
raw = raw << 3; // 9 bit resolution default
if (data[7] == 0x10) {
// count remain gives full 12 bit resolution
raw = (raw & 0xFFF0) + 12 - data[6];
}
} else {
byte cfg = (data[4] & 0x60);
if (cfg == 0x00) raw = raw << 3; // 9 bit resolution, 93.75 ms
else if (cfg == 0x20) raw = raw << 2; // 10 bit res, 187.5 ms
else if (cfg == 0x40) raw = raw << 1; // 11 bit res, 375 ms
// default is 12 bit resolution, 750 ms conversion time
}
celsius = (float)raw / 16.0;
Serial.print("Temperatur = ");
Serial.print(celsius);
Serial.print(" Celsius, ");
//ende tempmessung
prevMillis = curMillis;
}
else{
// send to the Pachube client
client.updateFeed(feedId, datastreamId, celsius);
}
}
I use the new pachube lib:
https://github.com/blawson/PachubeArduino/zipball/master
Thank you!