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Lookup Table (Arduino Firmware) for Thermocouple

Posted by emt 
emt
Lookup Table (Arduino Firmware) for Thermocouple
April 22, 2008 10:49AM
Hi

Has anybody created a lookup table for the Arduino firmware when using the Thermocouple sensor V1.0 interface that the RRF are now supplying?


Regards

Ian
Re: Lookup Table (Arduino Firmware) for Thermocouple
April 25, 2008 04:45PM
nope!

no need to...

the thermocouple outputs a linear value... meaning its super easy to convert the analog reading to a celsius value. theres more information on the doc page: [make.rrrf.org]

here's the code:

int raw = analogRead(0);
int celsius = ( 5.0 * raw * 100.0) / 1024.0;

the GCode firmware already supports this, and it would be fairly easy to add it to the SNAP v1 stuff. it will definitely be in SNAP v2.
emt
Re: Lookup Table (Arduino Firmware) for Thermocouple
April 26, 2008 04:31AM
Thanks Zach


Regards

Ian
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