how to make same signal of signal builder with constant

Hi , I want to know how to make same siganl from signal builder with constant.

I used simulink to get data from thingspeak server which can provide constant values.

but, I want to use it to rotate some wheels with revolute joint.

because, Sever gives me constant values, I want to apply it to revolute joint in simulink.

It's hard to find how to do this.

So please help me that i can make values with constant from thingspeak server.

I'm sorry that I'm not used to use this program. I'll appreciate your answer.

I also upload my codes. hope this will help.

[Christopher Stapels]

I'm not sure what you are trying to do. Can you describe what the desired inputs and outputs are and what you are seeing?

Perhaps you could write the question in your native language and then use a translator like google translate to help clarify?

[Jun Hyuk Jeon]

I want to control multibody in simulink by extracting data (PWM->speed, rotation) obtained from thingspeak.

In the case of the revolute joint used at this time, actuation can be inserted. When referring to other examples, it was confirmed that information was entered using the Signal Builder.

However, as shown in the figure, the data I can extract is in the form of a constant, is there any way to change this constant form to a form like signal builder?

The input and output are summarized as follows.

Input : Constant speed and rotation value from PWM signal in arduino

Output: Revoltue joint(wheel) actuation and cylindrical joint actuation signal

[Christopher Stapels]

You can put speed and rotation values from the arduino right into ThingSpeak. However, even for paid users the maximum update rate is 1 per second. Do you need higher frequency than this?

This example takes high frequency measurements for an Arduino conencted to a servo and extracts features from the data to post to ThingSpeak.

The signal editor block seems to be favored over the signal builder block. I was able to build a model that inputs values form signal editor into ThingSpeak, though I did have to slow the pacing down a bit and allow missed ticks.

[Jun Hyuk Jeon]

Thanks for your reply.

However, it is a problem to control the multibody of simulink through variables that are continuously read as constant values from Thingspeak.

Therefore, instead of using Thingspeak output, rotation should be performed using input. Is there any way to give a signal at this time?

[Christopher Stapels]

I'm sorry I don't understand. The simulation you showed has thingSpeak as an input. That seems to answer your question as far as I understand it. Is the question, "Can I use ThingSpeak to input data to a model?" then the answer is clearly yes, and you have shown it already.

If the question is , " Is it possible to get a more complex signal into ThingSpeak so that my model can read a complex signal?" Then I have shown that the answer to the second question is yes. If there is a different question, please ask it very specifically.

[Jun Hyuk Jeon]

Sorry if my question has confused you. If you express it with a picture, I think you will understand it a little more simply, so I will express it with a picture.

hope this figure helps you to understand this question.

Answer 1

[Steve Miller]

Once your ThingSpeak information is a Simulink signal, you need to convert it to a physical signal to feed it to the Revolute Joint. You use the Simulink-Physical Signal Converter for this step

.

[Jun Hyuk Jeon]

Not for motion, I worked with Torque input. thx