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About Steps, Speed ...
 

[Solved] About Steps, Speed & Ultrasonic

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SnOOpy168
(@snoopy)
Active Member
Joined: 3 months ago
Posts: 3
Topic starter  

Hi

When programming using the "motion" blocks, may I know:

1. Steps: What is the distance travelled, in cm or mm, does 1 step translate into?

2. Speed: Normal, slow & fast. Is there an estimated speed for these settings?

 

Under "Sensing" block

What is the usable range for this ultrasonic distance?

or is it "Distance: 400cm / 157 inch" as seen in the simulator?

 

Thank you


   
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Camilo Parra Palacio
(@cparrapa)
Member Admin
Joined: 6 months ago
Posts: 13
 

Hi @ snoopy welcome to the community!

Very good questions!

1. It is equivalent to one Otto size around 8 to 10cm.

2. These we will put in numbers in the code for now they are just fix values behind the libraries, but even after the speed has certain acceleration into the math. Do you refer to top speed per parameter.

3. Around 50cm but already in 30cm you will see fluctuations specially if the target is not an uniform wall.

 


   
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SnOOpy168
(@snoopy)
Active Member
Joined: 3 months ago
Posts: 3
Topic starter  

Thank you for the prompt and detailed reply. 

Q: "Do you refer to top speed per parameter."

A: Top or average speed will be sufficient. This is just a curious question.

Have a nice day.


   
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Camilo Parra Palacio
(@cparrapa)
Member Admin
Joined: 6 months ago
Posts: 13
 

Hello @snoopy

Regarding the speed with the last update you can change the values in the code directly in python text edit mode and have more control, the average speed, have many factors that can alter it, but to give you an estimation: without load at 5V each servo has a speed of aprox. 40rpm.

With the ultrasonic sensor we did more tests and actually you can get pretty good results still around 350cm! close to the datasheet value of 400cm, not that Otto really needs that but in case you want to use it in another project were you need to measure such distances.

 


   
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SnOOpy168
(@snoopy)
Active Member
Joined: 3 months ago
Posts: 3
Topic starter  

Thanks for the update


   
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