This program is a host program for a 3D printer called Panowin F1. It can also be used on other 3D printers but beware that it might not work perfectly.
Panowin F1 has some problems on its serial port circuit of its motherboard. The error rate is very high and makes the g-code broken often. Also their firmware is not the standard Marlin so it needs some special care when sending out the G-Codes. Like if the error eats the newline character, then we need to implement a timeout in host to resend the command when newline is missing.
This host program should be used under Linux. On Windows it is probably to use pango software (the host and slicer) made by Panowin. It uses proprietary binary P-code which deals better with the high transmission error rate.