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by gloomyandy
Sat Sep 23, 2017 11:32 am
Forum: NXJ Software
Topic: Using the lamp brick with java
Replies: 6
Views: 10

Re: Using the lamp brick with java

Although what you are doing may work, your are running a whole bunch of code that you do not need and which may be doing things that are not a good idea. By using the regulated motor code you will but running all of the motor speed control code and things like stall detection may well be kicking in....
by gloomyandy
Fri Sep 22, 2017 8:19 pm
Forum: NXJ Software
Topic: Using the lamp brick with java
Replies: 6
Views: 10

Re: Using the lamp brick with java

Ah Ok, well that cable is designed to let you use the old RCX motors with the NXT, so you can basically just connect it to a motor port. To vary the power to the port just make use of the MotorPort class and use the controlMotor method to set the power level, you should probably use forwatd, or back...
by gloomyandy
Fri Sep 22, 2017 7:14 pm
Forum: NXJ Software
Topic: Using the lamp brick with java
Replies: 6
Views: 10

Re: Using the lamp brick with java

What is the "lamp brick"? Never heard of it.
by gloomyandy
Mon Sep 18, 2017 4:00 pm
Forum: EV3 Software
Topic: [Solved] EV3 + Bluetooth
Replies: 7
Views: 4701

Re: [Solved] EV3 + Bluetooth

Are you sure you have actually established a PAN over Bluetooth between the PC and the EV3? You need the EV3 set into access point mode, to pair them and then to connect the PC to the access point. Once you have done that you should be able to ping the EV3 from the PC as address 10.0.1.1, and use st...
by gloomyandy
Sat Sep 09, 2017 12:51 pm
Forum: EV3 Software
Topic: still problems with the lejos ev3 plugin
Replies: 1
Views: 33

Re: still problems with the lejos ev3 plugin

I've just checked and it works fine for me (using Neon, Mars is rather old now), it has also been downloaded over 150 times already this month, so I suspect if there was a general problem we would have seen more reports. So it looks to me like whatever problem you have may be unique to you. Also the...
by gloomyandy
Thu Sep 07, 2017 8:58 pm
Forum: EV3 Software
Topic: Doubt about package lejos.internal.dbus
Replies: 2
Views: 27

Re: Doubt about package lejos.internal.dbus

Of course leJOS supports Bluetooth on the EV3 (via the Linux Bluez and debus interface), how else do you think it handles all of the stuff to search and pair with devices etc? But you should not be using the low level dbus package to do those things, instead you should be using the higher level clas...
by gloomyandy
Thu Sep 07, 2017 8:36 pm
Forum: EV3 Software
Topic: Motor angle fluctuation
Replies: 4
Views: 68

Re: Motor angle fluctuation

That looks pretty good, nice and stable. Not often you see so many gears being used with a Mindstorms robot. Could you post a close up of how the gearing works?
by gloomyandy
Thu Sep 07, 2017 3:26 pm
Forum: EV3 Projects
Topic: Need Help - New to leJOS and doing a company project
Replies: 1
Views: 23

Re: Need Help - New to leJOS and doing a company project

Hi, if you are familiar with Java then spend some time looking at the many tutorials out there that cover building GUI programs, that will show you how to complete that part of your project. Then spend some time understanding how networking works with Java, this will show you how to allow your PC ba...
by gloomyandy
Wed Sep 06, 2017 10:16 pm
Forum: EV3 Software
Topic: Doubt about Remote Support
Replies: 2
Views: 24

Re: Doubt about Remote Support

There are three remote APIs that are part of leJOS, all use pure Java, each one uses a different implementation mechanism. Spend some time looking at the code if you want to understand them. All of them have different limitations.
by gloomyandy
Tue Sep 05, 2017 9:08 pm
Forum: EV3 Software
Topic: How to Use the PidFilter for WheeledChassis Steering?
Replies: 5
Views: 47

Re: How to Use the PidFilter for WheeledChassis Steering?

targetSpeed can be adjusted via a method in the class, the PID code runs on a separate thread. targetSpeed can be adjusted in this case by a method called from the code that communicates with the PC based based control program (this code runs on another thread) in response to user input. But in a si...
by gloomyandy
Sun Sep 03, 2017 7:42 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 35

Re: Doubts about MindsensorsAbsoluteIMU

As I said above the datasheet for the sensor typically provides far more information than simple tests produce. After that you need to look at real world tests that replicate how you will actually use the sensor. For instance the techniques that Aswin describes for tracking the offset of a gyro real...
by gloomyandy
Sun Sep 03, 2017 4:54 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 35

Re: Doubts about MindsensorsAbsoluteIMU

As I said above I've never used the Mindseneors device for anything serious, why would I spend any time visualizing the output from it? When I've briefly tested it I just check that you get 1G acceleration reading from each axis (when aligned up/down), with zero from the others, and that the gyro pr...
by gloomyandy
Sun Sep 03, 2017 3:23 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 35

Re: Doubts about MindsensorsAbsoluteIMU

I've never used this device for anything very serious. I've always used the BNO055 which seems to have rather more on board processing than that provided by the Mindsensors device. In particular it provides tilt compensated gyro readings and automatic drift compensation.
by gloomyandy
Sun Sep 03, 2017 1:19 pm
Forum: EV3 Software
Topic: Pilot does not move?
Replies: 2
Views: 24

Re: Pilot does not move?

A few things to try... 1) Don't use Motor.A, Motor.B instead create the motor classes explicitly like this... new EV3LargeRegulatedMotor(MotorPort.A); 2) Check that you have the motors connected correctly, do they turn if you don't use the Pilot? 3) Try setting the speed and acceleration for the Pil...
by gloomyandy
Sun Sep 03, 2017 1:08 pm
Forum: EV3 Software
Topic: Doubts about MindsensorsAbsoluteIMU
Replies: 8
Views: 35

Re: Doubts about MindsensorsAbsoluteIMU

Compass and Angle are not identical. One reports degrees with the rotation in the conventional compass mode (clockwise increasing), the other reports rotation using the leJOS right hand rule (anti-clockwise increasing). I'm pretty sure that tilt is just another way of reporting the acceleration data...

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