Robot Building Questions

Help With This Error - Object Reference Not Set To An Instance Of An Object

Good Evening, I am attempting to write servo information to a file (C:\SERVO\INFO.txt The process and order that I am using is: $filename = ("C:\SERVO\INFO.txt") :start $servo1 = "" FileReadReset($filename) #opens file for reading sleep(50) FileDelete($filename) #deletes the file becauase I want a new one every time sleep(50)...

2 Direction H-Bridge Controllers?

Afternoon All I just want to confirm there are no 2 direction H-Bridge Controllers (back and forth)? I only see 4 direction options. Thanks, Daniel

Move Servos According To Camera Coordinates

Hi everyone, I've been playing around with the color tracking on my JD and while I can get the tracking to work, I'm having trouble getting the servos to move in response to seeing a color. Here is the code I have been using to try and Identify the color blue and then point in the general direction of the blue object:...

Powering Off The Ez-B At Low Battery Warning

I'm looking to implement a way where as the EZ-B moniters the LiPo battery voltage, it will trigger a script to say "Low battery. Robot is powering down" when the low battery warning activates, and proceeds to switch the EZ-B off, possibly triggering a relay so it breaks the connection between the battery and EZ-B, and then I can charge...

Ezb V4 For Sale Uk

Hi all. I've got a spare unused EZB V4 gathering dust here in the UK, any takers? I'd rather it get used than shelved. CJ

Object Training With V4 Camera

Once a new object is named and trained, it appears in the Trained Object box. I have found that you can't delete any trained objects, ie they can't be individually selected and deleted. The only way is to delete the Camera console from the project, thus removing all trained objects. Am I missing something or is this the correct procedure? It seems...

Kalman Filter To Detect A Colored Ball

Hi, This is my first time on the forum and I'm very new to the EZ- Robot platform. I'm at statistics student and would like to demonstrate the Kalman filter through a simple action- my idea being to get my robot (the JD) to rotate its head until it can find a door. The door will be recognizable by the presence of two red balls but there would also...