Today, I designed an integrated circuit for my laser controller. The circuit contains ATMEGA 328P chip, Two IRF540 for Laser and Light control and Easy driver 4.4 as a stepper controller.
The etchining process finished within 30minutes of work with Ferric Chloride solution applied with sponge. Now i have to drill holes and mount the components. Hope the experiment will not fail;)
EDIT:
Oops.. I have blunders in the above circuit which i found during the mounting of components.. Both LM-317 power supplys has errors in it, that when i corrected then found that the grounds are not connected ... After rectification, i found that the ATMEGA328P sockets and wiring ARE WRONG , then checked the EASYDRIVER and it was also flipped AND I ABANDONED THE PROJECT;)...
I will keep continue the work on this project until i figured out all the craps
... Just completed the new circuit board .. corrected almost every thing.. Power supply are tested.. Still the final testing of Arduino and easydriver require.
.
EDIT:
Oops.. I have blunders in the above circuit which i found during the mounting of components.. Both LM-317 power supplys has errors in it, that when i corrected then found that the grounds are not connected ... After rectification, i found that the ATMEGA328P sockets and wiring ARE WRONG , then checked the EASYDRIVER and it was also flipped AND I ABANDONED THE PROJECT;)...
I will keep continue the work on this project until i figured out all the craps
... Just completed the new circuit board .. corrected almost every thing.. Power supply are tested.. Still the final testing of Arduino and easydriver require.. 
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