bool writeInfo(const char* fileName,  uint8_t data){
    std::ofstream outfile (fileName,std::ofstream::binary|std::ofstream::out|std::ofstream::app);
    if(outfile.fail())
        return false;
    outfile.write (reinterpret_cast<const char *>(&data),sizeof(uint8_t));
    if(!outfile.good())
        return false;
    return true;
}