Master/Slave Mode for inexpensive RGB Lasers (Laser Show System)

Here is the laser I showed:
ESHINY Animation RGB Laser Beam Disco Stage Lighting Light Pattern Projector DMX512 DJ Dance Bar Holiday Party Effect Show X2
Model SR-300
www.aliexpress.com/item/1005006870624924.html
The problem was the manual that came with the cheap Chinese laser had pathetic instructions... and NO mention of master/slave mode :(
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This particular laser required these settings:
Master: DMX# = A001 and AS=on
Slave: DMX# = A512
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Here is another pair of super cheap RGB lasers I have that also work:
stephanie 500mw RGB Laser Beam Line Scanner Projector DJ Disco Stage Lighting Effect Dance Party Wedding Bar Club DMX512 Lights
www.aliexpress.com/item/1005005414040133.html
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This particular laser required these settings:
Master: DMX# = A001
Slave: DMX# = A512
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If you have a different kind of laser, here are other possible approaches to enable the master/slave mode:

Set One Laser as the Master:

For one laser, you should set it to DMX512 mode (A001 setting in the menu).
Ensure that the laser is set to an appropriate address (typically the default address in A001 is 001, but you can set it to whatever address you want it to be the master).
This laser will be the master and control the other lasers connected to it.
Set the Other Lasers as Slaves:

For all other lasers that you want to function as slaves, enter the DMX512 mode but set the address to something different than the master laser. Often, these lasers will automatically pick up the signal and act as slaves once they detect an incoming DMX signal from the master.

Connect the Lasers via DMX Cable:

Use standard DMX cables to connect the lasers. Connect the DMX out from the master laser to the DMX in of the first slave laser.
Continue this daisy-chain process with the remaining lasers by connecting the DMX out of one laser to the DMX in of the next.
Check for Synchronization:

Once all lasers are connected, they should sync with the master and display the same pattern. Make sure the master laser is set to a pattern mode (Auto or Sound) so that it triggers the pattern for all the slave lasers.
Troubleshooting:

If the lasers are not syncing, try adjusting the channel settings in the DMX menu for the slaves. Some systems use specific channel addresses for master/slave relationships.
Also, verify that the DMX connections are secure and the cables are functional

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If the standard DMX setup didn't work, here are a few additional suggestions you can try:

1. Check for a Master/Slave Setting in the Menu
Some lasers have a hidden or less obvious menu option for switching between master and slave mode. Try going through the laser’s on-board menu options (as seen in your manual images) and look for any settings that could relate to master/slave mode. It could be under options like "CH" (Channel mode) or "AS" (Host settings), as these names might be indicative of the master/slave control.

In particular, see if there is an option within the “CH” (channel mode) menu, and try experimenting with the settings there.

2. Default Factory Reset
Sometimes, devices need to be reset to factory defaults to clear any settings conflicts. Check if there is a way to reset the lasers to their default settings through the LED menu. This will ensure that no conflicting settings are preventing the lasers from entering master/slave mode.
3. Set All Lasers to Auto Mode (Master-Slave without DMX)
If the lasers are supposed to sync automatically without needing DMX control, you could try setting the master laser to Auto Mode. This should cause it to generate patterns on its own, which the other lasers should mimic if they are in slave mode.

Make sure the other lasers are set to DMX512 mode but with different DMX addresses, as sometimes the master-slave synchronization relies on them not being in the same control mode but connected via DMX cables.

4. Use a Simple DMX Controller to Test
Try connecting a basic DMX controller to the lasers to see if that resolves the issue. If you can control all the lasers from the DMX controller, this can help confirm that the DMX system is working properly. Sometimes, you need to send a specific DMX signal (even a blank one) to trigger master/slave mode.
5. Test with Only Two Lasers
Try setting up just two lasers (one master and one slave) in case the issue is related to the number of lasers or improper chaining. Reducing the number of units might help identify whether the problem lies with individual lasers or the entire setup.
6. Check for DIP Switches or Internal Settings
On some lasers, there may be physical DIP switches or an internal jumper that needs to be set for master/slave mode. If you haven't already, inspect the units carefully for any hidden switches that might activate this mode.