Episode 3: Getting the SD Card Interface Working.
In this video we investigate how to make the SD Card Reader work on the ESP32-S3-USB-OTG, but this would also work on other boards. The SD_MMC library is used in 4bit mode instead of the SD library which only works with SPI and is much slower.
This series includes a number of separate episodes where various interfaces and components are investigated and tried out. They will all be included in a view list called "ESP32 Adventures" available on the Tech-Relief Channel: / @tech-relief .
Previous Episodes:
Ep.1 - Intro & Getting Started: • ESP32 Adventures Ep.1 Getting Started
Ep.2 - Getting Started with TFT Displays: • Episode 2: Getting Started with TFT Displays.
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Links:
SSD_MMC Info: https://github.com/espressif/arduino-...
SD Card Slot Circuit: https://docs.espressif.com/projects/e...
Chapters:
0:00 Intro
01:27 Github site for SD_MMC information.
02:07 Espressif Micro SD Card Slot Circuit.
04:17 ESP32-S3-USB-OTG SD Card Slot GPIO pins.
04:58 SD Card Test Code.
05:58 PlatformIO Boards, Variants and Pin-outs.
13:34 Test run of Sample code.