General

ESP32 for IoT Tutorial

Getting Started with the ESP32 Development Board | Random Nerd Tutorials

ESP32 Dual Core with Arduino IDE | Random Nerd Tutorials

Aguacatec

ESP32

Electronics

Engineering Essentials - SparkFun Electronics

https://www.youtube.com/c/atomic14

https://www.youtube.com/@marios_ideas

https://www.atomic14.com/

File system

How to use SPIFFS for an ESP32 File System [Beginner Guide + Code]

Install ESP32 Filesystem Uploader in Arduino IDE | Random Nerd Tutorials

ESP32 VS Code PlatformIO: Upload Files to Filesystem SPIFFS | Random Nerd Tutorials

Buttons

https://www.youtube.com/watch?v=vNmPSkAG2XI&ab_channel=Mario'sIdeas

https://www.youtube.com/watch?v=UKn3ZYl7bRI&ab_channel=KootenayBoyDIY

https://www.youtube.com/watch?v=gOO-Ez29mDY&ab_channel=PassionTechKLM

Leds