Hi there board, I'm designing a S3 SPI master board, that will feed some IT8951 with pixel data for some 9.7 epaper displays. Schematics: https://github.com/martinberlin/H-cinread-it8951/blob/main/Schematic/IT8951-S3-HAT-Schematic.pdf It has 2 USB-C's: 1 is for programming using USB - UART using CP2...

Just if someone has experience with S3. I would like to ask for just a visual review, to know if any of the GPIOs I'll be using for LCD Mode (Parallel 8 bits) is an IO I should not use for any reason https://github.com/martinberlin/H-S2-wrover-dev-board/blob/epd-v1/S3-epaper-controller/documentation...

Alright thanks, that means I have to rewrite all the code I guess... to make it clean I will make an i2s file just for the S3 On the S2 I could simply use the only one I2S0 available: https://github.com/martinberlin/epdiy-rotation/blob/160-board_hal/src/epd_driver/i2s_data_bus.c ESP_Sprite can you s...

Maybe related to this entry: ESP32-S3 LCD and I2S FULL documentation sorry I didn't find it when I wrote this. Anyways it's about different stuff. This week I've been designing a new board based on the S3 with the ESP32-S3-DEVKITC-1-N8R2 that has 2 MB PSRAM. It looks approximately like this, with th...

Take care with that EN -> 3.3v
Ideally is not directly connected to 3.3v but just pulled-up high, for ex. with a 10K resistance to 3.3V.

Thanks ESP_Sprite, I will give a good read to that. I see that some boards directly cut the PCB around the antenna. But if I get it right, the only requirements of the Keep out area is that there are no cooper traces or GND panes around the area. It's not a requirement to cut the PCB I guess, althou...

Thanks a lot, will modify it and upload it here again.
This is more or less the components distribution

Hi there, I wanted to design an open source dev board for the S2 WROVER that exposes all pins (In my design all except IO0 are there) This is the schematic v1: https://github.com/martinberlin/H-S2-wrover-dev-board/blob/master/S2-Wrover-dev-pcb_SCHEMATIC.pdf Minimum requirements for my design: Lipo c...

Tried many different things and still no luck with this one. I have an idea: will research how arduino framework does and try to replicate it in the IDF…

Hi all, here trying to understand how the Bluedroid works in IDF. I did some stuff a while ago in Arduino-esp32 but I wanted to learn it also with the ESP-IDF framework. As a test I'm using one of this Smart price labels that advertises BLE with the name of: ESL_545778 I've tried so far all examples...