Introduction: Bootloader Shield for Arduino Uno
first i should explain that this is a shield which makes it easy to burn bootloader to your arduino if you want to use a new Atmega328 in your arduino or you want to make your own arduino or you work on a project that requires arduino's atmega programed on it. you can do this with bread board but it is nasty like always and it gives me headache so i decided to creat my very own pcb to burn bootloader and after i test it successfully i decided to share it !
Step 1: What We Need?
as it is shown in breadboard we need:
16 mhz crystal
2x 22 pico farad ceramic capacitors
female pin header (6output)
28 pin socket for atmega328p
and of course a blank atmega328p
and a blank copper pcb in order to transfer toner
Step 2: Printing Pcb
this is my file i designed with fritzing . it is ready for toner transfering so do not flip it just print it and by using iron transfer it to copper
here is the link
Step 3: Pcb
as its shown i first cleaned the copper then after printing pattern i used iron and by moving iron firmly i made sure that toner has transfered but because my pcb wasn't cut sharp it had its bends and a small line hasn't transfered but i'm sure you won't have this problem after that i repaired it with a sharpee and i send it into etching acid and here we are i made it ! the next step is to drill holes and assembling parts
Step 4: Assembled Parts
we have everything hooked up onto board!
Step 5: How to Burn Bootloader
1 - before attaching pins from pcb to arduino you should upload Arduino isp into your original arduino
2- then make shure to choose arduino as isp
3-now attach all pins as they are printed on pcb
4- then burn Bootloader!
and thats pretty much it leave comment