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grbl gcode laser engraving with software
https://github.com/grbl/grbl/wiki/Connecting-GrblThis is for arduinoveith grbl.For LPT or motor controller you have to check manufacturer's manual/datasheet etc. Motor controllers usually use step/dir control, so you'll need those pins and ground. Without gnd connection nothing will work properly.
I pasted configuration for 8A in comment below. You should find it in internet. What fuses actually mean can be found in atmel fuses calculator, other parameters are
Are quite simple to understand
Oh! Better buy a crystal then :)By the way, how I change the configurations like fuses, clock settings, or frequencies? Mine is actually Atmega8A-PU and I'm pretty sure I have to change things. It's my first time working with uCs ^^;
Yes, but with deferent configuration: fuses and freq. Also you should connect crystal for burning to avoid possibility of bricking uC. Maybe you could make "stand alone" atmega with clock by soldering it on top of uC with capacitors. I made few... (It's topic for nwew instructable :). It should look something like this: http://www.niklasroy.com/project/116/Lumenoise
Can I do this without the crystal configuration? (using only the internal clock of atmega8-16 pu)
hola,en windows no me deja abrir el progama
How to burn optiboot botloader on Atmega8 with Arduino IDE 1.6.x and 1.5.x
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