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HamShield Library: APRS Transmission Sketch - YouTube
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Arduino for ESP8266&ESP32适用库ESPAsyncWebServer：请求与响应_espasyncwebsrv-CSDN博客
Arduino: Using c_str() on String for IPAddress with NTPClient provides wrong values - YouTube
SafeString Alternative to Arduino Strings for Beginners : 16 Steps - Instructables
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Arduino String Class alternative (against memory-fragmentation) - Arjen Stens
