ESP32 Pinout: How use GPIO pins ?
c++ - Can you use all the ESP32's GPIO pins when the WiFi is working? - Stack Overflow
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ESP32-DevKitC V4 Getting Started Guide - ESP32 - — ESP-IDF Programming Guide latest documentation
Tech Note 081 - ESP32 Using the Hardware Serial Ports - YouTube
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ESP32 Pinout: How use GPIO pins ?
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ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials
152 Additional ESP32 Serial Channels in Arduino IDE (Quickie) - YouTube
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DOIT ESP32 DevKit V1 Wi-Fi Development Board – Pinout Diagram & Arduino Reference - CIRCUITSTATE Electronics
