Method addButton

include/VectorDisplay.h:521–526

    void deleteButton(uint8_t command) { sendCommand('D', &command, 1); }

    void addButton(uint8_t command, const char *str) {
        args.charText.c = command;
        strncpy(args.charText.text, str, VECTOR_DISPLAY_MAX_STRING - 1);
        args.charText.text[VECTOR_DISPLAY_MAX_STRING - 1] = 0;
        sendCommand('U', &args, 1 + strlen(args.charText.text) + 1);
    }

    void addButton(uint8_t command, String str) { addButton(command, str.c_str()); }