Important: before soldering the screen to the PCB, fasten
its bottom two holes with screws, nuts, and spacers.
In this way, you’ll ensure that the screen module is
aligned perfectly before soldering it to the PCB.
You will only be able to fixate the screen using the
bottom two holes on it.
After you’ve fixated the screen, solder the connector on
the other side of the PCB and avoid bridging between
pins.
Step 11
–
Insert the ATmega328 microcomputer
Let’s start by
finding the little black precious microcomputer.
Here comes the
tricky part…
Important: Most common mistake that people do with the
microcontroller is that they either insert it in the socket wrongly or
break the microcontroller’s tiny pins in the process of inserting it.
Don’t worry, it just needs a tiny bit of caut
ion and concentration
(don’t hurry with this one).
Firstly, locate the
microcontroller’s
notch indicating which side to
turn it when inserting it in the socket.
Secondly,
DON’T
insert the microcontroller straight
away.
You’ll need to bend the pins a bit
. Do this pushing the
microcontroller’s pins against the table so that you apply
equal force to all pins.
Check whether there are pins on the microcomputer that are
not bent correctly and correct that.
Finally, slowly insert the microcontroller into the socket. If
needed, take the chip out and bend the pins some more.
A properly fully inserted chip should look like the photo next
to this paragraph.
