Sorry for the delay, but I was gone. As I said, I tried multiple program sources to compile but without a favorable result. I've also changed the Arduino software with an older version (someone said on a Forum that programming does not work with version 1.8.8) and errors have changed, but ... they're still there. So I do not have a valid source program. Version 1.6.x gives other syntax errors (eg, lack of character ")" in the UI.imm program). The source I got from the github site. In addition, we also marked the Sanguino variant in the Arduino processor list as described: „The instructions work fine... no idea what your doing..I downloaded latest Arduino 1.6.9 windows.zip onto my old Windows Xp machineExtracted the zip to the desktopRan the IDE, as expected no Sanguino filesOpen up the menu File|PreferencesAt the bottom is a field Additional Boards manager URLs:Enter"https://raw.githubusercontent.com/Lauszus/Sanguino/master/package_lauszus_sanguino_index.json"Click OKOpen up the menu Tools|Board:|Boards manager...This will open the manager. Scroll down till you see SanguinoClick more info, this will reveal an install button.Hit install.Close the Board manager. Sanguino is now in the list of boards at the bottom.Select it and new menu item is now visable in the Tools menu. ProcessorNow select the type of Processor 644p at 16mhz or 1284p at 16mhz are聽normal for Sanguino boards, though you can get 20mhz versions, for that聽you will need to edit the boards.txt file” I tried compiling with all 644 and 1284 tipes of processors without any results. There are always errors, some of them the same, some of them different. So I did not have the way to enter the commands suggested by Repetier. Finally, I do not understand how it can happen that using the Repetier dedicated software to write a source program, does it have syntax errors? Normally, at least from a syntax point of view, it should be correct. I read all the data in the printer (stored in EEPROM) and typed them correctly. Normally, I should have obtained the original printer source program without syntax errors. In addition to all of the above, I'm not too initiated in this type of programming. But I have read a lot about, and still read in the hope that I will succeed what I have proposed.Therefore please, if someone has the valid and proven source program for the Tronxy xy100 or p802 printer, let me download it. The difference between them is the size (100/100 or 200/200 mm) and with / without a heat bed.The hardware I have:Melzi 2.0-V5 motherboard with separate sockets for two fans.
The software installed is Repetier version 0.91.The processor is 1284, but I do not know if it is 8 or 16Hz.I have to mention that the printer works perfectly in the parameters described by the manufacturer, but I also want to implement the heatbed.Sorry for the message perhaps too long, but I think this is one of the goals of a forum, learn from the mistakes and ideas of each one.With great respect for everyone.