When developing an ESP32 PCB, there were many conditions about using pins. For example, if Wi-Fi was using ADC2 pins, those pins would not work. Are there any similar issues with the RAK3172? I can’t see any caution about using pins. I only think PB12 is used internally to identify 868MHz or 433MHz. So, can those pins be used without any issues?
At the beginning I need 2 digital input pins. which should I prefer?