ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials
ESP32 Bluetooth Classic with Arduino IDE - Getting Started | Random Nerd Tutorials
Use the GPIO pins of the ESP32 – uPesy
Debugging the ESP32-C3 Device with JTAG – VisualGDB Tutorials
Getting Started with the ESP32 - Using the Arduino IDE
Amazon.com: Dorhea ESP32 Mini NodeMCU Board, MH-ET Live MiniKit for ESP32 WiFi Module Bluetooth Internet of Development Board Based ESP8266 Fully Functional with Pins for WeMos D1 DIY Kit 6PCS : Electronics
What happens to ESP32 module IO pins when it is connected to ground but not to power? - Electrical Engineering Stack Exchange