hi bobsheaux

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.

more video's

all about atonomous

autonomous

autonomously Line Following with AdventureBot

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'm not talking about using the camera (that's a whole OTHER set of issues), I want to learn how to use the ultrasonic sensor, and the tutorial's giving me nothing I can use. (Thank you for that Question Mark remark, Nomad 6R, but looking at that same tutorial again, I didn't get anything of value out of it except for how the Ping and Echo ports can be the same.) I don't know what the other settings are/do, I don't know how to apply it to my RoboScratch, and worst of all, I don't even know if I'm explaining my issues properly.

in Blockly i see settings for the ping sensor. i am not a programmer.i gess you need some kinda script?

the ultrasonic sensor,

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

@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

When you are just starting, it is always better to have one of the EZ-robots like Six, JD, Roli, or AdventureBot to work with and try to accomplish a easier task. -:)

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