Can a k type thermocouple be used with Marlin and a Sanguinololu 1.3a

I am interested to know if this setup will work. I bought one of those China K-type hot ends and my Sanguinololu 1.3a running Marlin firmware is made for two thermistors. I see where some people use chips to interface a thermocouple to the board but no one seems to tell the whole story of how it is done. Does the interface circuit hook to the present thermocouple inputs? I would appreciate it if someone could show me how to change the firmware of marlin to do this and I also need a schematic of how it is done.

Read through the configuration.h file in the marlin firmware.


//===========================================================================
//=============================Thermal Settings ================================
//===========================================================================


// -2 is thermocouple with MAX6675 (only for sensor 0)
// -1 is thermocouple with AD595


I don't have a Sanguinololu 1.3a so I cant comment on hardware, You may or may not have to remove a cap or resistor, I don't know??

It will plug into the connector that the thermistor was in, you will have to work out which pin is ground and which is the ADC input, maybe download the board schematics and layout.

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Thanks! I will try that. I think I will have to remove the 4.7k resistor and maybe the cap.

Slymike, Im starting back into this after getting some free time to mess with it again. I tried to set the settings to -1 in the marlin firmware and upon trying to compile it gives an error about not being in thermistor tables or something similar. Looking deeper into the Zen Toolworks marlin I do not believe this version has the ability to set the thermocouple settings to -1 or -2. I see 0 thru 6 but nothing that matches my AD595. Can I merge two different marlin configs to get this to work by copying all the thermistor files out of a version like you have? What version are you using and where can I download it?