11

FORGE

to the orientation of the panels, as it is very difficult
to remove these again without damaging the
foam board.
You then want to thread the wire of the servo
module through the hole for the servo, and then insert
the servo. Glue the dial hand onto one of
the connectors that comes with the servo, and attach
it to the servo when dry. The 3D design
used in this project can be downloaded from here:
hsmag.cc/iqOPiP. However, you can use anything
you want (and a model car could be substituted if you
don’t have access to a 3D printer).
Finally, solder wire to each pin of the buzzer module
and push it through the front of the foam board.
Connect all the modules to the Wemos on the
protoboard and test everything out. Once you are
happy that everything is working correctly, secure
the components in place with some hot glue.
You are now ready to have super-accurate home
arrival times!

Always be generous

with the lengths

of wire you use,

especially in a

project where

space is not an

issue. If you need to

make adjustments,

it’s easier to

shorten them than

lengthen them.

QUICK TIP

A lot of people who saw early versions of this project

mentioned that it reminded them of the Weasley Clock

from Harry Potter, a clock that showed the current

location of each of the members of the Weasley family.

This Telegram-based solution could be used for a

project like that, but it does require each of the users

to actively enable the location sharing. A more passive

solution might be better.

Figure 1

The wiring diagram

for our Way

Home Meter

Below

The name displayed

comes from the

user’s Telegram name

A POTENTIAL

WEASLEY CLOCK?