Function md5File

src/core/sd_functions.cpp:446–454

}

String md5File(FS &fs, String filepath) {
    if (!fs.exists(filepath)) return "";
    String txt = readSmallFile(fs, filepath);
    MD5Builder md5;
    md5.begin();
    md5.add(txt);
    md5.calculate();
    return (md5.toString());
}

String crc32File(FS &fs, String filepath) {
    if (!fs.exists(filepath)) return "";