Back to the Future Clock - WIFI EDITION

I finally found how to connect this clock to internet to synchronize the time!

Several mounth (years?) ago I designed this clock with a RTC module to synchronize the time. I had many (bad) feedback regarding this module, so I had to change it.

The dimensions are : 225x60x140 mm (length x width x height)

Hope you'll enjoy to make it!

Buy the components: https://jeje-linge.fr/pages/back-to-the-future-clock-wifi

BUY THE CLOCK: https://www.cesam3d.be/products/film-horloge-delorean-retour-vers-le-futur

What you need is:

• 9 displays (3 Reds, 3 Greens and 3 Yellows)
• Resistors (about 200 / 300 ohms)
• 1 ESP32
• 1 power supply 5V 2A + connector
• 5 mm led (Red, Green, Yellow)
• Terminals (wago or other)
• Wires

The components : https://jeje-linge.fr/pages/back-to-the-future-clock-wifi

You should have these parts:

• 1 top
• 1 middle
• 1 bottom
• 2 sides
• 3 back covers

I use superglue to assemble all the printed parts.

I use metal grey spray paint.

2 or 3 layers are generally enough.

You have to "chained" each line (red, green and yellow).

For the CLK and DIO inputs, I used wires with female connector because it's easier to connect to the esp32.

You have to prepare 4 leds with resistors and wires.

2 greens, 1 red and 1 yellow.

Glue the leds into the holes.

To stuck the displays I use double-sided tape but you can use many type of glue.

Solder the red and yellow leds on the displays (5v and GND).

Connect all the 5V and GND together with terminals.

Connect the DIO, CLK and green leds to the ESP32.

You can choose between theses 4 code files : 12h or 24h display, with or without automatic change daylight saving time.

Libraries :

TM1637 by Avishay orpaz

Wifimanager by Tablatronix

Ntpclient By Fabrice Weinberg

ArduinoJson by Benoit Blanchon

I used a self adhesive sheet to stuck the labels.