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 (view all EZB hardware)
EZ-B V4
by EZ-Robot
EZ-B v4/2 robot controller: dual Cortex ARM, Wi-Fi, audio/video, 24 servo/digital ports, I2C/UART, camera and Synthiam ARC control for custom robots
Wi-Fi / USB
Servos
24
Camera
Audio
UART
3
I2C
ADC
8
Digital
24
Related Robot Skills (view all robot skills)
Ultrasonic Distance
by Synthiam
Displays HC-SR04 ultrasonic distance readings in ARC; scriptable via GetPing(), pausable, sets a variable with multiplier, optional NMS output
Ultrasonic Radar
by Synthiam
Ultrasonic on a servo sweeps 180°; radar shows distances and obstacles, integrates with movement panels for automatic avoidance, scriptable GetPing
Ultrasonic Collision Detection
by Synthiam
Stops robot movement (no steering) when an EZB-connected ultrasonic sensor detects an object within a set range; integrates with scripting and paused polling.
I've got the Movement Panel (moving the robot around with the arrow keys is a fun little feature), I have the ultrasonic control linked to the movement panel, but I can't make sense of the ultrasonic controls beyond that. Sometimes it detects something in front of it and turns to avoid it, sometimes it plows right INTO it, sometimes it just stops dead in its tracks, sometimes it still runs after I hit the STOP button on the movement panel...
Do I need to read through the tutorials for the other robots before continuing with this?
Keep tweaking the controls and see what setting are best for you,
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
lower the speed .and see what your robot do.
Hi Nomad, I guess we are the only here now :-)
EzAng
hi ezang
103 people watsh this topic.
Yes, I'm using the ultrasonic radar control.
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.
slow down the speed even more , is your sensor mounted on a rotation servo? the dots below is what the robot detects.
No, the sensor isn't mounted on a rotation servo, and I REALLY hope that it doesn't NEED to be in order to be effective. I didn't get a satisfactory answer to my earlier question of why the rechargeable batteries I bought weren't working, and I just gave up and bought one of the batteries from EZ-Robot's store, making me wonder what the point was in including a holder for 6 AA batteries in the Developer Kit if the EZB was never intended to USE them. Is this another case where this particular component only works if it has ANOTHER component attached to it?
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.