After watching the video "Burn bootloader to ATmega328p AU with Arduino NANO" I knew flashing the bootloader using an Ftdi was exactly what I needed for my tiny atmega328p-au project.

I'm making a small PCB and I don't want it to be re-flashable or require any USB functionality except for power.
So here's what I'm planning.


Basically I'm using the bare minimum to keep the ATmega running, the crystal and the 4 caps and the resistor, and I plan to flash the bootloader using the left test pins (pictured in yellow) and upload the code using the right test pins. All this using a test clip like in my second pic



Taking this into account I think it's safe to say this will work fine, right? The atmega doesn't need much more to work and I'm going to add an OPamp, a diode, pushbutton and a few leds, it's going to be an arduinoboy, my third pic.


I'm nervous because it's my first time doing an arduino project without the whole arduino, just the atmega chip by itself.

Thanks for the quick reply! Off to finish the design and send off to JLCPCB

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