TFT_eSPI VS lvgl

Bodmer's TFT_eSPI is a graphics library for drawing to various displays, like the ILI9341, which is supported. It can be used with the Arduino IDE to program a Pico to interface with an ILI9341 using SPI, 8 bit parallel or 16 bit parallel interfaces.

For example, the electropeak link you posted showed a TFT LCD with the ILI9341 chip, and if you are using the TFT_eSPI library, this file needs to be configured https://github.com/Bodmer/TFT_eSPI/blob/master/User_Setup.h , the default configuration looks correct in this case.

Example Setup70b_ESP32_S3_ILI9341.h

Discription /* * Esp32 WROOM with iLi9341_TFT display * TFT_eSPI Library // https://github.com/Bodmer/TFT_eSPI * * ESP32Encoder Library // https://github.com/madhephaestus/ESP32Encoder.git * * DIGITEN G3/8 Water Flow Hall Sensor * Red - VIN(5v) * Black - GND * Yellow - D2 * * */ Enable TFT_eSPI Library #include // Hardware-specific library #include TFT_eSPI tft = TFT_eSPI(); // Invoke custom library ESP32ENCODER Setup ``` #include

``` /* * Esp32 WROOM with iLi9341_TFT display * TFT_eSPI Library // https://github.com/Bodmer/TFT_eSPI * ​ * ESP32Encoder Library // https://github.com/madhephaestus/ESP32Encoder.git * ​ * DIGITEN G3/8 Water Flow Hall Sensor * Red - VIN(5v) * Black - GND * Yellow - D2 * ​ * ​

My favorite Arduino compatible graphics library is https://github.com/Bodmer/TFT_eSPI

I was under the impression that since this display uses a ST7789V, I'd be able to use the TFT_eSPI library which has support for this controller with ESP32 board. Is that a correct assumption on my part?

LVGL is pretty much the IOT industry standard for 32-bit architectures like Renesas RX, Arm Cortex-M, ARC, TI MSP, Atmel...

https://lvgl.io/

To my happy surprise, there was already QR code support in the LVGL module included in Zephyr so I made some minal QR code functionality to expose the required data once the Broadcast source was ready on the device. As this is a PoC, the non-changing parameters are hardcoded:

So here is the thing: The iPod Nano 7g is from 2012. I've seen many people designing custom PCBs and releasing Kickstarter projects for custom audio players[5] or game handhelds[6]. I know Rockbox (which is great, but its lacks support for Wifi and Bluetooth AFAIK and just does not compete with the UX of iPod's audio book features in my opinion) and iPod Linux. 10 years ago someone even reverse engineered the iPod Nano 6g display[3].

Although I'm not skilled enough in PCB-Design, after some research I found the Lilygo T-Display S3 Pro[4] based on ESP32 S3, which would be the size, but lacks audio and OS. There is also the Mango PI CyberPad[7], which looked interesting, but maybe is already too clunky.

Programming wise, LVGL[8] may be a good framework to develop a modern and efficient UI - at least it looks promising.

So, why is nobody interested in recreating an iPod nano like device? It should be doable with modern tech, but Phones have completely taken over the marked...

1: https://www.reddit.com/r/audiobooks/comments/14ue4un/comment/ks1sj99/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

2: https://github.com/advplyr/audiobookshelf-app/issues/847

3: https://www.youtube.com/watch?v=7TedIzmguP0

4: https://www.lilygo.cc/products/t-display-s3-pro

5: https://www.youtube.com/watch?v=1C597AkhGtw

6: https://www.funkey-project.com/

7: https://mangopi.org/cp1m

8: https://lvgl.io/

LVGL is a graphics library used mostly for embedded UI's. Main website: https://lvgl.io/

Popular embedded UI library

If you need something written in C and very tiny, I recommend LVGL https://lvgl.io/

The factory code uses the Lvgl graphic library. https://github.com/lvgl/lvgl