martinberlin/epdiy-esp32-epub-reader

An ESP32 e-reader forked to focus on epdiy epaper controllers

Hi there 👋

• 🔭 I’m currently working on making hardware PCB adapters
• 🌱 Learning more C, C++ and Symfony framework UX Live (PHP 8)
• 👯 Looking to collaborate on interesting embedded products and funding open source libraries that make our work easier
• 💬 Ask me about eink controllers and Espressif chips (epdiy open source epaper controller)
• 📫 How to reach me: martin AT cale.es
• 💭 If you want to generate dynamic images for your displays try CALE.es

epdiy-esp32-epub-reader's Issues

SD card issue on S3

Still could not make it work with the SD card.

Maybe also bad hardware since I got the cheapest microSD from Aliexpress...

IO PINS:

 ; setup the pins for the SDCard
 -DSD_CARD_PIN_NUM_CLK=GPIO_NUM_18
 -DSD_CARD_PIN_NUM_MOSI=GPIO_NUM_16
 -DSD_CARD_PIN_NUM_MISO=GPIO_NUM_14
 -DSD_CARD_PIN_NUM_CS=GPIO_NUM_9

Error in Serial

I (1899) SDC: Initializing SD card
I (1899) gpio: GPIO[9]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (1909) sdspi_transaction: cmd=52, R1 response: command not supported
I (1959) sdspi_transaction: cmd=5, R1 response: command not supported
E (2959) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
E (2959) vfs_fat_sdmmc: sdmmc_card_init failed (0x107).
I (2959) gpio: GPIO[9]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
E (2969) SDC: Failed to initialize the card (ESP_ERR_TIMEOUT). Make sure SD card lines have pull-up resistors in place.

Adding new board Cinwrite S3 with IT8951 epaper controller

Thanks to @jason
Let's use this Issue to communicate forward!

Next blocker for this: Either separate the IT8951 from epdiy since @atomic14 used this library as a base to keep the framebuffer. But EPDiy in this version does not support ESP32S3.

My wish will be to erradicate epdiy completely for IT8951 displays and instead use Lovyan GFX that supports IT8951. But that would be a complete revamp of the engine. And a cowboy should go slow and easy peasy to avoid falling of the horse 🏇

Update GFX rendering to use LovyanGFX instead of M5 epaper/epdiy

Use only LovyanGFX to render all items of the Epub.

This will be kind of a big refactoring but it's worth it since I hope we can take advantage of grayscale simulation of Lovyan and overall speed increase that can make this a much more usable ereader.

Prepare upgrade with latest version of epdiy and touch PCB Kaleido

Upon the launch of this new product https://www.youtube.com/watch?v=ojIscxyC1Zg
we will celebrate it with an upgrade of @atomic14 DIY epub reader focused in recycled Kindle paperwhite 1 displays (30 USD) so you can make your own Do-It-Yourself e-reader device