dlpyc900

This is a Python module for controlling Texas-instrument DMD's with a DLPC900 controller, based on the USB-interface described in the user manual.

Example code

Below some random commands you can give.

import dlpyc900
dlp = dlpyc900.dmd()           # open connection
print(f"DMD model is {dlp.get_hardware()[0]}")
print(dlp.get_main_status())   # Check if all is ok with the device
dlp.set_display_mode('video')  # Set display mode to video
dlp.set_port_clock_definition(2,0,0,0) # Dual pixel mode
dlp.set_input_source(0,0)      # Switch to parallel interface input source
dlp.lock_displayport()         # Lock to the displayport input source
dlp.standby()                  # go into standby mode
# etc. etc.

You can find some illustrative usage examples in the example folder. Note that the on-the-fly mode is experimental, there seems to be some weirdness. Please report if you run into problems.

Note that not all commands are available via this module (yet). I can do what I want mostly, so expanding this module further is not a good use of my time. However, if you can do some programming, it should be relatively straightforward to add new commands (see here, contributions are welcome!), or you can ask me to implement them by opening an issue.

Supported models

I only use the DLP9000 DMD, but in principle at least the following DMDs should also be supported:

• DLP6500
• DLP9000
• DLP670S
• DLP500YX
• DLP5500

Installation

First, install this module in your Python enviroment. This module is not in the pypi repository (yet), so you can install it directly from github using pip, poetry, or whatever tool you use. The main dependencies of this module are the pyusb and pillow modules.

After that, you need to install new drivers for the DMD device. I only used this in Windows 11, so outside that you are on your own with regards to drivers. Let me know if it works with Linux (and how), and I can add the method below.

1. Install and open Zadig.
2. Plug in the usb cable of the DMD.
3. Select "List all devices" in Zadig.
4. Select DLPC900 from the list of devices.
5. Selected the "libusb-win32" driver.
6. Pressed the "Replace driver" button, wait for install to complete.
7. And now try using the module, things should work!

Note that replacing the driver will make the normal GUI not work anymore! Luckily, you can re-install the old driver any time you want:

1. With the projector connected over USB, to go to device manager.
2. Uninstall the device connected using the libusb driver; when the confirmation window comes up, make sure to check the box to also remove driver software.
3. Unplug and replug the USB cable.
4. The old 'regular' drivers will now be installed, and the GUI can be used again.

Credits

I forked this module from the code from ppozzi, but I added quite a few extra functions which I needed, and added a lot of documentation.