Configuration

create myWifi.h in 01_src\include`` with the following content, containing your wifi credentials:

#ifndef MYWIFI_H_
#define MYWIFI_H_

#define MY_WIFI_SSID "<ssid>"
#define MY_WIFI_PASSWORD "<wifi_password>"

#define NTP_SERVER "pool.ntp.org"

#endif

Wiring Diagram

In case you need to change the pinout, the pin definitions are in 01_src\include\board.h.

Parts List

• picture frame 30x40 cm (IKEA RÖDALM)
• ESP32 Dev Kit (e.g. AZDelivery ESP32 NodeMCU)
• 4x Wavesahre 2.9inch e-Paper Display (Waveshare 2.9inch e-Paper Display)

3D Printing

The 3D printing pars are available in the 02_cad and on Printables.

Parts:

• 2x connector (PLA)
• 2x front panel (PLA, white)
• 2x dot (PLA, black)

Assembly

To hide the small gap between the front panels I used a big sheet of white paper and cut the display holes into it. The paper is then glued to the back of the front panel.

Editing the Digit Font

The font file as Affinity Designer file is available in the res directory. To convert the exported images to bitmaps you may use this tool. Th bitmaps can be found in 01_src\include\bitmaps.h.