Bobsheaux
USA
Asked
I'm sorry for ANOTHER stupid question, but I'm having a REEEALLY hard time following the Tutorials and searching for help in the forums here. I've just attached my ultrasonic distance sensor to my EZ-B4, but I can't figure out how to do anything with it. At this point, I just want to have my robot navigate autonomously (which, to the best of my knowledge, should be a fairly simply process) before moving on to more complex tasks, but I've got no idea how to proceed from here. What do I need to do to figure this out?
Related Hardware EZ-B v4
i found this video.maybe it helps.also avery window has a question mark ( ? ),
klick on that and you get the tutorial how to use it.
all about atonomous
autonomous
You can use any of the robots that has a camera pointing down to the line
Learn how to get your AdventureBot to follow a line autonomously using EZ-Bits and painters tape on the floor.
Just follow this video:
https://youtu.be/4n6-qSLOiAc
here is my robot following the blue line autonomously after watching the video
https://youtu.be/ATdOcU-KSm4
Here is Roli
Revolution Roli
autonomously Line Following with Roli
Robot Overlord DJ Sures and Professor E demonstrate how to program Roli to follow a line using the camera. The camera device will use a multicolor filter to identify blue painters tape. The move feature of the camera device will be enabled to allow the camera to control the movement panel. Roli's head servo will be configured to look straight down at the floor.
https://youtu.be/J7st7BRfX74
thanks
EzAng
i am not a programmer.i gess you need some kinda script?
This is the "main" video - follow this video
https://youtu.be/U_xIYUk4qag
You need these controls:
*** ultrasonic radar scan open
***servo Movement Panel open
[url=https://synthiam.com/uploads/user/0F0BCA18C7C66CDE5E9D45284520603D/akk2sqgf.png]
For a 3 wire ultrasonic sensor,- Make sure the trigger and echo are on the same port as the ultrasonic sensor, I am using D0 in all 3 examples
I have check ** control movement panel
Misc.
ultrasonic collision if you want to use
ultrasonic distance if you want to use
here is the ultrasonic collision
here is the ultrasonic distance
EzAng
That video KIND OF helped, but I have no idea what these values are or what to do with them. I'm trying to follow what's being shown, but now my robot (a hacked Robie Sr.) is moving sporadically. Basically I'm just trying to accomplish THIS...
https://www.youtube.com/watch?v=LhlC7xOUadU
I f you had one, follow the video above and you would be finished.
Anyway,
Let's say you have a robot with wheels - use D0 to connect your 3 wire ultrasonic sensor too.
In the ultrasonic sensor- Make sure the trigger and echo are on the same port as the ultrasonic sensor, I am using D0 in my examples - make sure you check the "control movement panel" in the ultrasonic settings.
Then in the servo movement panel do this: - look below:
click the 3 dots on the top right - that are left of the question mark, this will talk you to this:
say you use D6 and D7 like me - then save.
connect on Connection 0 - that's it - push the sliders up a little for motions
thanks
EzAng
Do I need to read through the tutorials for the other robots before continuing with this?
Are you using the ultrasonic radar control?
try the ultrasonic collision
these sensor should avoid objects, or stop
the movement panel's stop should stop the robot - double check the settings
EzAng
EzAng
103 people watsh this topic.
I slowed down the robot's speed, and it encountered the same issues as before. Sometimes it detected objects and avoided them, sometimes it didn't. I tried hitting STOP on the movement control and it just kept on going.
the dots below is what the robot detects.
I'm sorry for ranting, but every problem I'm encountering with this is just REALLY frustrating, compounded by how it appears that I'm the only one having these issues.
so rechargebles are not so good for using robots .
a servo is 7.4 volt .the batterie case has 6 x 1.2 volt=7.2 volts not enought.
what happens when you slow down the speed even more?
learn to be patients .you will live longer.:)
Questions about their products and such can be asked on their website with their Contact Us page.
we’re not ezrobot. Ezrobot won’t see your messages or product feedback here.
as for using an ultrasonic distance sensor, there’s some info in the ARC manual in the docs section
witsh ARC are you using?
Here are my current ultrasonic settings, and the only values here that I recognize are the EZB ports into which I've plugged the appropriate servos and ultrasonic sensor.
What's weird is that I didn't even need to hit the FORWARD command on the servo Movement Panel like I was doing before. As soon as I connected the robot, it was moving on its own. But it wasn't even MOVING on its own, it was... rocking to the left and right very faintly, and backing up slightly. Yes, I see that I have 'Reverse Before Turn' selected, I wanted to give it some room to clear whatever might be blocking its way. But now it's just looking back and forth slightly, not going anywhere, but backing away, and then it just STOPS before I tell it to stop. Hitting the Stop button myself doesn't work, and if the radar scan screen devoid of red dots is any indication, it wasn't detecting anything.
It seriously looked like it was AFRAID of doing anything, and it couldn't even see any reason TO be afraid of doing anything. :/
you can delete the camera window if you dont use a camera.
what kind of wheels are you using?
does your arrow keys work fine now?
do you save your project on your pc?and maybe you can take a new window ultrasonic.
check the cabke from your camera bolt sides.
And as near as I can tell, the connection of the cable on both ends of my camera is perfectly fine.
also i read some post about the camera cable.solution is to turn the cable 180 degree.
And I guess I'll poke around what the other tutorials have to say about the ultrasonic sensor.
to turn left/right its more fun.