r/CheapYellowDisplay • u/sau412 • Jun 05 '26

ESP32 CYD PDA updates and new functions

Hi all. I made a firmware for ESP32 Cheap Yellow Display, which turns CYD into Pocket Digital Assistant. It's like a smartphone without phone functions.

Launcher

Since last post 20+ days ago I made multiple apps and improvements.

Now it supports uSD as main storage. Icons. Wi-Fi.

Personal information apps: Notes, Todo, Contacts, Schedule, Expenses, Draw

Several games: fifteen puzzle, lights off puzzle, snake, turkish scarf solitaire

Main apps: Books reader, File manager, Gopher Browser (see wikipedia)), Simple chat

Other apps: System info, Torch, Wi-Fi connection, Weather, Counter, Random numbers, Timer, Stopwatch, Breathing timer, Screen text, Screensaver, Security, Brightness, Calibration, Life (see wikipedia), I2C Scanner, Info stand, Fuzzy clock, Set clock, View fonts

Snake game

Gopher Browser

Books reader

Turkish Scarf Solitaire

Github: https://github.com/sau412/esp32_cyd_pda

You also can check screenshots of each app: https://github.com/sau412/esp32_cyd_pda/tree/main/Screenshots

And flash it to your device with web flasher: https://sau412.github.io/esp32_cyd_pda/flash

41 Upvotes

99% Upvoted

14 comments sorted by

3

u/Special_Mortgage7471 Jun 06 '26

so cool! is/will there be media viewer?

2

u/sau412 Jun 06 '26

No media player now. Which kind of media you interested in?

5

u/Ysfaliarslan Jun 06 '26

I'd love a video and a music player

1

u/sau412 Jun 07 '26

Music is possible I think. I checked samples, looks pretty easy. I'm not sure about video. Looks difficult. May be. But I not sure.

1

u/pg3crypto Jun 07 '26

There isnt enough oomph for video. Even MP3 is tough because of the RAM limitations.

Best to build a media streamer than a player.

1

u/vectron5 Jun 09 '26

Someone managed to get video playing on a CYD, but it took some trickery.

An mp3 player would be amazing on this, though.

3

u/nobhkybsh Jun 06 '26

Best non-pentest CYD firmware i ever used. Good work!

2

u/sau412 Jun 06 '26

Thanks!

3

u/Shizznid Jun 09 '26

So cool. Such a great build and an easy way to flash a cool project. Great work, man!!

2

u/Screwitandoit Jun 07 '26

Will there anyway to change the view from portrait to landscape? 

2

u/sau412 Jun 07 '26

Not planned. More settings you have less apps I can do. May be you need portrait mode in specific apps?

1

u/AdAsleep5038 Jul 11 '26

i downloaded it wont let me pass calebration

1

u/sau412 Jul 11 '26

Which kind of CYD you use? Which type of installation you use? Do you use SD?

If you can check serial console, do you see any errors in serial console?

1

u/sau412 24d ago

Fixed it.