PROGRAMMING AN ATMEGA328P WITHOUT THE ARDUINO IDE

This site https://www.costycnc.it/avr-hex-uploader is make manually by me and not have yet implemented all asm code ... so if want to help me are welcome!

This page was created for upload hex code to arduino nano ( for upload grbl firmware to arduino nano used in my costycnc foam cutter costycnc https://www.costycnc.it) ... but i added some functions (after tons of hours and google search and tests) that permit you not only upload your firmware to arduino but also create your small code in asm , compile it and upload to arduino!

So you can watch this first video tutorial https://youtu.be/0i8CgucF1Bg?si=npn7C0CtkzRj3GIi (is in italian but translated in english too) you will understand purpose of this site. 

In few words ... you can compile asm code and upload to arduino nano only with this page. 

In this mode you have many advantages :

-You can learn the base of microcontroller in generally and specially atmega328 architecture.

-You can learn the base of asm language (many are unknown now even to me!!!)

-You can create in this mode very small code.

-You can see in my tutorials practice example without download hudge programs.

And many other advantages  which do not come to my mind now!

See my channels for anothers videos!

https://www.youtube.com/@bobyca2003

Creating Gcode for CNC hotwire foam styrofoam cutter speak italian

costycnc how inkscape create svg in mm

 My page is www.costycnc.it ... and my id is costycnc ... so ... try on internet costycnc .

I create this page www.costycnc.it/cm8 for transform a image to gcode , i modified potrace https://kilobtye.github.io/potrace/ for transform coordonate to gcode ... practicall all lines that compound svg i transform to gcode ... for example L 10 10 to G01 X10 Y10 (at line 1249)... C 10 10 to G01 X10 X10  (at line 1239)  see here https://www.costycnc.it/potrace/potrace.js.highlight.html#1236

Inkscape create document svg with height and with in mm ... my old transformed potrace to gcode ... create a gcode in mm but svg in pixels ... so now i try to  produce also the svg file in mm not in pixel.

The dpi of my system is 96 (also the inkscape use 96 dpi ) so the old svg produce 378 for 10 mm ... so I did not understand because this 378  ... but here explain better 

https://stackoverflow.com/questions/35517230/lines-look-irregular-in-thickness-when-using-texturebrush

Since the convention is that all monitors have 96 pixels per inch, and by definition 1 inch == 25.4 mm, we have that 0.1 mm == 0.1 mm * 96 (px / inch) * (1 inch / 25.4 mm) == 0.378 pixels (approximately).

so ...here   https://www.costycnc.it/potrace/potrace.highlight.html#155 at line 155 i put 100/378 for result values in mm ... first was 1 and svg measure result was in pixels...

now need to understand better to finished program!

Costycnc js svg editor online

Low cost foam cutter machine

Real speed of low cost foam cutter costycnc

Sister Isabella and Nicoletta Olteanu final gold TAEKWONDO ROMA 2019