Matrix user forums

Where can I find a description of the component macro, and examples?

After adding component to 2D or 3D panel.
Right click on the panel component, then select Help.
If there are any examples you will see them on the page that will be displayed.

Did you have a particular component in mind?

Thanks. I am so glad to get this component macro. Am testing it now.
Going to use it on a 2 axis solar tracker, for which I need a few time variables.

It worked. Kudos to the developers. Beats writing code that the macro does.

Another question.
I have been using this RTC (DS-3231) on an application - a solar single axis tracker. Sww watt-tracker.com.
As usual, I forgot to document some code segments. The code below code was before the RTC midule was availible.
To Wit:
One subroutine I call PowerFromBattery
It goes like this:
I2C transmit byte 208 - this is a write command
I2C transmit byte 0x0E - I believe this is the control register
I2C transmit byte (0b00011100)

I can not remember what it does exactly, or from where I got it.
Any suggestions?

Have you see this?
It applies to DS3231

Hi billduck,
Did that help or you need further assistance?

I guess I need to go read this very carefully <https://datasheets.maximintegrated.com/en/ds/DS3231.pdf>
and see what 00011100 means. I know it's binary, but what it does in the contril register is the key.

My goal is to 1. figure out what it does, 2. See if I can implement it in the RTC component macro.

billduck wrote: see what 00011100 means.

Looking at the datasheet its just controlling the frequency of the square wave and only whe the alarm match the time keeping registers.
Does that ring a bell?

Well, thanks. I thought it had something to do with the button cell battery. So the code segment was entirely unnecessary. I will supress it and verify that the code performs as expected.

Mr Medelec35. What is incorrect with this FC example? I ram trying to show passing a variable to a subroutine and returning a variable.
Hope it is well documented.

Hi,
What you need to do is double click the Call Subroutine (or right click, select properties) within main.
Add the variable you want to retrieve from the Call Subroutine like this: If done correctly, you should see the call subroutine change with the required returned variable assigned to it:

Made that change. Thanks. The problem, I discovered was that .Angle in the sub was an integer. My Bad