Ideas for LIFA + AC control

[Likim]

Hi everyone,

I need to control an AC lamp temperature using arduino + lifa and LM35 , but i dont know exactly how to do it.

I know how to make this control using an arduino code as i have attached below.

As you can see, if there´s a LM35 on A0 it works, using arduino´s interrupts.

But i want ( or there is another way? )  to get LM35 value, to send it by serial to arduino to use interrupt to dinners works.

I have attached my Arduino .ino program, that dinner works ok. And my labview program which read the value of LM35 and shows in a termometer.

In fact, my objevtive with that is to use labview and a PDI block to use a Setpoint Temperature on LM35 and control the AC voltage of lamp.

Hope somebody can give me some ideia !

Thank you.

[Nathan_B.]

The first thing to note is that you cannot use interrupts when using LIFA.

I'm a bit confused on what you are doing in your Arduino code.  What does your physical setup consist of and how are they wired?  What do you have wired to pin 2 (the interrupt)?

Give as many details as you can to enable us to help as much as we can.

[Likim]

Well, i use an triac with diac circuit to cut the senoid wave actived by pin3. A optacouple to  in pin2 to sync the wave to  the time cut. (Sorry for bad english.... o dont know exactly how to explain in english).

[Likim]

Hi again,

I got a " simple " solution to do this.

I used another arduino uno. One arduino with labview - another one to dimmer circuit.

I Used one PWM port with LIFA to send the signal to analog port on my arduino-dimmer circuit. And that´s work fine ( With a little eletrolytic capacitor in paralel with analog port, if there´s not a capacitor, pwm didn´t work).

The only problem with this is to use 2 arduinos in the project. If there´s someone with another idea to control only with one, I appreciate !

[hrh1818]

Here is an articel on an AC light dimmer using one Arduino.

<http://www.instructables.com/id/Arduino-controlled-light-dimmer-The-circuit/>

However, it is not compatible with the present version of LIFA

[Likim]

I used a similar circuit in my project. As you said... the problem is to use this with lifa. =(