connecting external thermocouple board to rambo board

[ohms]

Hi, I bought the e3d volcano hotend with the k-type thermocouple and thermocouple board, but I'm not sure on how to connect the external thermocouple board(https://www.filastruder.com/collecti...ple-board-v1-0) to the rambo 1.2b board. Any help is appreciated.

[CSMonkey]

I used the Analog input pins [left of the main chip in your image]
You have to change the Marlin sketch, specifically Pins H to tell the board which pins to look at for temperature.
https://groups.google.com/forum/#!to...ax/DAP-ylLgge8
I discussed it in the linked Google Group

Hope that helps

Rich

[ohms]

ahh thanks, that helps out a lot, I should be able to get it working following that discussion, thanks

[ohms]

hey so I tried following those instructions so no I have the thermocouple board power connected to the top right pin from the picture and ground to the pin right below it and signal to the top left pin. in the firmware I now have in configuration.h #define TEMP_SENSOR_0 -1 and in pins.h
#define HEATER_0_PIN 8
#define TEMP_0_PIN -1
I opened simplify3d and tried to set a temperature but im gettring error: no thermistors-no temperatures. I'm not sure where I went wrong

[CSMonkey]

That is how I connected my thermocouple board. Did you edit the correct section of pins.h? as in scroll down to the correct board number definitions. My RAmbo board is 301 in the sketch.

Rich

[ohms]

Yes, I did. Do you know if I have to use a specific version or flavor of the firmware? I just edited the one that came with the printer