Final touches
If you add right angled buttons then you can still use these
holes to attach additional buttons that can be
exposed outside of your project’s housing.
The enter button
can be picked up here
and attached to one of the
analog pins on the MCU.
solder on
1*100 nF
The first column of the prototyping
area is attached to Vcc and the second
to ground. The other holes are
connected to each other in rows of
three.
You can burn a bootloader
onto the ATMEGA328-MCU
using the ISP header .
Connection for the photoresistor
and resistor as voltage divider.
These resistor slots
remain empty.
This resistor is no
longer needed.