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,

Arduino weather clock

e are three people – Elena, Eugene, and

Alex – and we run a small design workshop.

It’s the hobby part of our life while we do

day-to-day, normal jobs. Each one specialises

in a different area – Elena in design, Eugene

in mechanical stuff (making things), and Alex

in programming. The things we have done in the past range from

interior design to small microcontroller devices.

The clock that we made is nothing special technologically, except

that it was made from a salvaged clock and a salvaged phone

battery, which most people would just dispose of. About one and

a half years ago, I discovered the world of microcontrollers. It is

fascinating how the Arduino team have made it so easy for people

to start with MC devices. I saw others making devices on YouTube

using Arduino, and some temp/pressure sensors, and so decided

to have a go at it. So, this was my first Arduino project. Since it was

my first device, the best I could code was the clock and display

icons with meter readings. Settings, alarm, forecast, etc. were all

programmed in V2 by Alex, and now the code is quite sophisticated.

Overall, the electronics setup is simple – we used modules and

connected them all together: a salvaged Nokia 5110 LCD module for

display, a BME280 module for weather, a DS1307 module for real-

time clock, TP4056/5 V boost modules for power, a buzzer that was

salvaged from the old PC, and the basic LDR module. The faceplate

is recycled, and the original bells were preserved – we connected

the motor to Arduino through the transistor.

W

By Eugene Oleynk youtube.com/c/LenkaDesign

Right

The alarm’s faceplate

is a random

PCB found in a

rubbish pile, with

the components

desoldered