R2D2 Clock & Timer

TUTO VIDEO [English SUB] :

BUY ALL COMPONENTS HERE : https://jeje-linge.fr/pages/r2d2-bundle

I wanted to make a R2D2 clock & timer cause I didn't have a timer in my kitchen (for my pasta) and I wanted an original timer, so I said to myself : R2D2 !!

It displays the time wich is connected to wifi.

Behind you'll find a rotary button to set the timer.

Push the button to set the timer, hold it 3 seconds to interrupt a countdown.

SIMPLE AND EFFICIENT !

• 1x ESP32 board
• 1x 5v 2A power supply
• 2x Wago terminals
• 1x DC2.5 connector
• 1x MP3 module + micro SD card
• 1x 40mm speaker
• 1x blue 7 segment display
• 1x rotary coder
• 220 ohms resistors
• Led 3mm and 5mm (blue, red and white)
• Super glue 3
• Wires : female-female, male-male, male-female

Every components available here : https://jeje-linge.fr/pages/r2d2-bundle

Paint :

• Stormhost Silver by Citadel
• metal grey spray paint
• Tamiya X13
• Typhus Corrosion by Citadel
• Agrax Earthshade by Citadel

I printed every part with PLA, infill 20%, layer 0.2mm.

You need to use some support especially for the bottom of the body.

You can use super glue to assemble every part.

Check the video if you have some doubt.

For the head you can use a "metal grey spray paint" that you can find in every DIY shop.

For the rest check in the components list above.

Solder the 4 pins provided with the blue display.

The rotary coder needs a pull up resistor in order to detect when you push the embedded button.

The resistor should be solder between the 3.3v and the N°27 input

Solder two wires female-male on the speaker and bend them at 90°.

Solder a 220 ohms resistor on each cathode and solder the two cathodes together.

Solder the two blue leds in parallel.

Put a drop on the edge of the speaker and put inside the model

Connect two wires (male-male) to the connector et put it inside the model.

Normally you don't need to glue it, try just to push it.

Connect the Wago terminals to the connector, one for the +5v (red) and one for de ground (black).

Connect 4 red wires (male-female) and 4 black wires (male-female), these will be used to supply every module/component

Put the rotary coder in the hole behind the body.

You should glue it with the super glue.

Put the display in the hole provided for the purpose.

Normally you don't need to glue it.

Follow the wiring diagram to connect every module/component

Leave a little gap between the body and the button in order to have enough space to push the button.

Code : https://github.com/jejelinge/R2D2_CLOCK_AND_TIMER

Libraries :

• TM1637 by Avishay orpaz
• Wifimanager by Tablatronix or Tzapu
• Ntpclient By Fabrice Weinberg
• DFRobotDFPlayerMini by DFRobot
• ai esp32 rotary encoder by Igor Antolic

Important : You have to create a mp3 folder in the root of your SD card and put the mp3 files in it.

Be carefull when you put everything inside the model, because some wires can unplug.