How to run Java 11 and Java 8 on the same machine

GroG's picture

The Manticore version of myrobotlab requires Java 8.
The Nixie version of myrobotlab requires Java 11.

What do you do ? 

Win 10 pro and Java

pepper's picture
For all those who have the problem under Win10, the Manticore breaks off as soon as the Arduinos are addressed, try OpenJDK 8
 
I bought an AcePC AK1 to control Inmoov with a pre-installed WIN10 Pro. 
After installing the required Java version from Oracle, MRL broke off every time the Arduinos were addressed. 
After a long back and forth I installed OpenJDK 8 and since then MRL Manticore has been running without problems.

Tri to get back at My Robots

AdolphSmith's picture

Hi Guys. I tri to build Robots again but first i need MRL to work for play and test. So please tel me what do i do wrong. I have downgraded my Arduino software to get mrl.com loaded on it. I try every thing but When i connect comport to Arduino, my mrl program close and only web page stay open. What do i do wrong.

 

Please help.

Greetings Adolph

 

servo blocking detection with rotary sensor in joint

juerg's picture

I have added gears and an AS5600 rotary encoder to one of my InMoov shoulders. For shoulder moves I am applying incrementing positions every 20 ms to my shoulder servo. When requesting shoulder positions I record the requested position and the measured position for each of the 20 ms steps.
I would like to use the measured position vs. the requested position to detect a blocking of the shoulder move.

I wonder is this a personal blog?

Jim_K's picture

now is the time for all good men

Install Bug

Ray.Edgley's picture

In the past whenever I have installed MRL on a Raspberry Pi or even in Windows, I would create a dirctory MRL, copy the myrobotlab.jar file into that director, then open a terminal window and navigate to the directory.

From there I would run the command:

java -jar myrobotjab --install

After some time, particularly on a new build with a fresh OS image, the program would finish and leave me at the command prompt.
Launching then without the --install would start MRL up with all the services installed.

Generated Configurations

GroG's picture

Functionality is from this pr

There are 3 UI elements which will save config.

Fixing Audio Output with Java 11 on the Raspberry Pi

Ray.Edgley's picture
Notes for when running on the Raspberry Pi with the Rasbian Buster OS.
 
When using Java 11 OpenJDK, you may find the audio from the Text To Speech coming out the HDMI port instead of the selected 3.5mm Audio socket on the side of the Raspberry Pi.
This is caused by Pulse Audio not following the requested settings and routing the audio from the Java apps to a different output, the HDMI like it or not.
The solution is to edit the Java sound.properties file.
 





    

            




  

  

    


  
Speech recognition with chromium does not work

	

  Gule's picture





    
Got the same problem with speech recognition as mentioned in another topic. Mic status is always changing between ready and not ready. After a few seconds MRL shows an error: Too many events.


I would like to go around speech recognition and control my robot with written commands. How I can do this?