Hello All, This is my first post, so apologies if this has been discussed and solved in this forum elsewhere (if it did, those solutions did not appear in any Google search results I've tried). Here is the problem: The E3D PT100 as TEMP_SENSOR_0 20 - is not uniformly defined in all Marlin versions (at least for the for Lulzbot Taz 5 which I am using, and several other kinds of printers - according to the Google search results into PT100 installation problems). Can anyone please provide (or point to a URL for) ALL the required changes to Marlin/Arduino in Configuration.h, advanced, or any other sketch file in order to get the PT100 working? And please, do kindly update the E3D's instructions for the PT100 amplifier. A lot of people have been misled by the instruction to merely edit #define TEMP_SENSOR_0 to 20 (and the TEMP_0_PIN). For most having problems, a quick search through the Marlin/Arduino sensor table shows that choice "20" does not exist. Do please save your customers from a wild goose chase of hunting for hardware problems to resolve MAXTEMP/MINTEMP errors upon upgrading to PT100 errors when the actual problem is in missing code. I thankfully have the habit of purchasing two of each item (as I have in my recent V6, Titan and PT100 purchase order) to easily and confidently verify that hardware isn't the problem. You've got great products E3D! The more news on the web of successful installations by people upgrading their 3D printers with V6, Titan and PT100s to enable printing with new, high temperature filament can only be even more beneficial to E3D sales. Looking forward to your response. Thank you.