   writeCommand += '\r';
   writeCommand += data;
   usbDeviceWrite(writeCommand);
+  delay(150);
 
   if (++write2fileCount >= USB_WRITE_MANUAL_FLUSH_RATE) {
     Serial.println("Manually closing & reopening datafile.");

void usbOpenFile4Write(const String& filename)
{
  usbDeviceWrite("OPW " + filename + "\r");
  delay(100);
  dumpUsbOutput();
}



String dumpUsbOutput()
{
    if (usbDev.available()) {
    String fromUsb = "";
    while (usbDev.available()) {
      char readC = usbDev.read();
