# README
Enttec USB DMX Pro
Some Notes from the Enttec DMX USB Pro - API Document @v1.44
For latest version check their website
Examples
Write
Write DMX data using the serial device located at COM5.
go run ./example/write/main.go --name=COM5
Note: If testing with a specific fixture, make sure to adapt the example
Read
Read DMX data using the serial device located at COM6.
go run ./example/read/main.go --name=COM6
IN and OUT
DMX USB Pro has been designed to either receive or send a DMX stream at any one time, not both.
The DMX USB Pro’s input and output ports are physically connected to each other, therefore trying to recieve and send DMX streams would cause data degradation and flickering. Having the DMX IN and DMX OUT options it means that it can be integrated as part of a DMX chain when set to receive DMX data (in the same way you can daisy chain DMX in and out of a lighting fixture).
Message-Format
| Size in Bytes | Description |
|---|---|
| 1 | Start of message delimiter, 0x7E. |
| 1 | Label to identify type of message. See Labels |
| 1 | Data length LSB. Valid range for data length is 0 to 600. |
| 1 | Data length MSB. |
| [data_length] | Payload bytes (byte at index 1 contains channel 1. So byte 0 is unused) |
| 1 | End of message delimiter, 0x7E. |
For implementation see here
Labels
| Label # | Title (in API description) |
|---|---|
| 1 | Reprogram Firmware Request |
| 2 | Program Flash Page (Request/Reply) |
| 3 | Get Widget Parameters (Request/Reply) |
| 4 | Set Widget Parameters Request |
| 5 | Received DMX Packet |
| 6 | Output Only Send DMX Packet Request |
| 7 | Send RDM Packet Request |
| 8 | Receive DMX on Change |
| 9 | Received DMX Change Of State Packet |
| 10 | Get Widget Serial Number (Request/Reply) |
| 11 | Send RDM Discovery Request |
For implementation see here
Glossary
| Term | Explanation |
|---|---|
| LSB | Least Significant Bit |
| MSB | Most Significant Bit |