To convert and append an integer, use operator += (or member function concat ): String stringOne = "A long integer: "; stringOne += ... ... <看更多>

The main issue is that you are mixing C-style strings (character arrays) and C++-style strings (objects), and that gives weird results. ... <看更多>

Arduino: String to char ArrayHelpful? Please support me on Patreon: https://www.patreon.com/roelvandepaarWith thanks & praise to God, ... ... <看更多>

Contribute to espressif/arduino-esp32 development by creating an account on GitHub. ... String::String(const char *cstr, unsigned int length) {. init();. ... <看更多>

On an ESP32, due to a different implementation, serial ports may not be used in ... however with the char 'r' before the hex string the complete request ... ... <看更多>