ds18s20 and pachube
i wanting display data 3 ds18s20 on pachube feeds, haven't found nay sample code on how this. do replace analog lines in code digital data? i want graph status of digital pins state track how turned on.
i'm using example code http://community.pachube.com/files/ethernet_pachube_input_output_1_1.zip
i adapted 1-wire sample code address each sensor directly , generate string pass pachube_in_out function - grab sensor readings before calling pachube_in_out() , avoid pin 10 bus
here's feed http://www.pachube.com/feeds/14134
i adapted 1-wire sample code address each sensor directly , generate string pass pachube_in_out function - grab sensor readings before calling pachube_in_out() , avoid pin 10 bus
code: [select]
void readtemphex(byte *addr, byte *data) {
byte i;
byte present = 0;
// dallastemperature library can work you!
ds.reset();
ds.select(addr);
ds.write(0x44,1); // start conversion, parasite power on @ end
delay(1000); // maybe 750ms enough, maybe not
// might ds.depower() here, reset take care of it.
present = ds.reset();
ds.select(addr);
ds.write(0xbe); // read scratchpad
for ( = 0; < 9; i++) { // need 9 bytes
data[i] = ds.read();
//serial.print(data[i], hex);
//serial.print(" ");
}
//serial.println();
}
// convert hex temperature reading celsius
char *convertreading(byte *hexreading) {
int highbyte, lowbyte, treading, signbit, tc_100, whole, fract;
char reading[20]; // array holding converted temp
lowbyte = hexreading[0];
highbyte = hexreading[1];
treading = (highbyte << 8) + lowbyte;
signbit = treading & 0x8000; // test sig bit
if (signbit) // negative
{
treading = (treading ^ 0xffff) + 1; // 2's comp
}
tc_100 = (treading*100/2);
whole = tc_100 / 100; // separate off whole , fractional portions
fract = tc_100 % 100;
if ( !signbit ) { // positive temp
sprintf(reading, "%d.%d",whole, fract < 10 ? 0 : fract);
}
else { // negative temp
sprintf(reading, "%c%d.%d",'-', whole, fract < 10 ? 0 : fract);
}
return reading;
}here's feed http://www.pachube.com/feeds/14134
Arduino Forum > Forum 2005-2010 (read only) > Software > Interfacing > ds18s20 and pachube
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