Can you please help me with this module. If this is connected with MCUs then output form is adjusted through code or using potentiometer.

I don’t understand your question. Are you asking how to use the PWM module I showed you?

 

LM41140ACM this is the IC that you used?

The LM4140ACM is a very stable voltage reference. You could use is with the MCP4922, which is a DAC.

 

I don’t understand your question. Are you asking how to use the PWM module I showed you?

Yes sir. Is it manually potentiometer moves or our code will give output according to that.

 

The LM4140ACM is a very stable voltage reference. You could use is with the MCP4922, which is a DAC.

Why we need voltage reference.

 

Why we need voltage reference.

I have10v dc power adapter this is also done with this but i'm unable to tune this with MCUs that's why we need any IC that can communicate with MCUs

 

Why we need voltage reference.

The voltage reference will set the fully scale voltage. If you use the power supply as a reference you will probably see a lot of drift over temperature. A voltage reference chip will vastly improve temperature stability. You don't need a separate reference, it all depends on how stable you want your readings to be. I use the power supply for many A-to-D applications where I don't care as much about stability.

 

The voltage reference will set the fully scale voltage. If you use the power supply as a reference you will probably see a lot of drift over temperature. A voltage reference chip will vastly improve temperature stability. You don't need a separate reference, it all depends on how stable you want your readings to be. I use the power supply for many A-to-D applications where I don't care as much about stability.

Arduino, MCP4922 and LM4140ACM. Using MCUs I want 10v,9v,5v resp output not moving with potentiometer.

 

Yes sir. Is it manually potentiometer moves or our code will give output according to that.

I fear there is something of a language barrier here.

The module I showed you takes a PWM input and outputs 0-10V. To use it, you generate the appropriate PWM signal for the corresponding voltage you want. The PWM is generated by the MCU, the module uses it to determine the voltage output. There is no limitation on how discrete the steps are, once you calibrate it, you can choose any specific voltage without passing through the others.

It’s PWM controlled, it produces 0-10V. I don’t know how i can be more clear. I’m sorry, but I am having a very hard time understanding what you want at this point so I am going to step away. Good luck.

 

As Yakkov says, you don't need a DAC if you are using an Arduino. If you set a PWM output to 50% the filtered output will be 50% of the reference voltage, which may be the power supply. PWM is a very simple and straight forward means of generating precision voltage ratios.

 

A good workable solution is offered right in the OP, but the poster gives no way to determine why it's not working...so offering alternate solutions wont help. if they can't figure out a simple serial controlled DigiPot, or offer the information needed to help with it.

The next thread will be..."I tried these other parts...but...

 

I fear there is something of a language barrier here.

The module I showed you takes a PWM input and outputs 0-10V. To use it, you generate the appropriate PWM signal for the corresponding voltage you want. The PWM is generated by the MCU, the module uses it to determine the voltage output. There is no limitation on how discrete the steps are, once you calibrate it, you can choose any specific voltage without passing through the others.

It’s PWM controlled, it produces 0-10V. I don’t know how i can be more clear. I’m sorry, but I am having a very hard time understanding what you want at this point so I am going to step away. Good luck.

OK thanu so much.

 

As Yakkov says, you don't need a DAC if you are using an Arduino. If you set a PWM output to 50% the filtered output will be 50% of the reference voltage, which may be the power supply. PWM is a very simple and straight forward means of generating precision voltage ratios.

Ok I'll try