Getting Started with the ESP32 Development Board | microdigisoft.com
Roger F Dupuis - ESP32 Pinout Reference: Which GPIO pins should you use?
A Complete Guide on ESP32 Pinout Reference | ElectroRules
ESP32 Pinout - How to use GPIO pins? Pin mapping of ESP32
DOIT ESP32 DevKit V1 Wi-Fi Development Board – Pinout Diagram & Arduino Reference - CIRCUITSTATE Electronics
ESP32 Dev board Pinout, Specifications, datasheet and Schematic
Amazon.com: DIYmall DEVIT V1 ESP32-WROOM-32 Development Board ESP32 ESP-32S 2.4GHz WiFi+BT BLE Dual-core Dev Module CP2102 for Arduino DOIT : Electronics