@cechurat Hi Tomas,

That works very well

I ended up doing it in intervals of 22.5deg. But used 17 values all together to allow for 0 and 360 = N.
Thank you for the help.

Cheers

Mike

Hi All,

Is there a way to point Grafana at the REXYGEN archives? Trying to do it with needing to install influxdb etc.

Cheers

Mike

Hi Team,

I'm using open weather map. Wind direction is in degrees. If I wanted to convert degrees to a compass direction, NNE for example. What's the best way to do that?

Cheers

Mike

@reitinge Hi Jan,

Ok no worries, thank you for the update.

Cheers,
Mike

@reitinge
Thanks Jan,

I kept the DIV block in the end as using a 1sec delay gives faster response than waiting the whole minute to count.

Thanks for your help as always.

Cheers

Mike

Hi All,

I'm using WebWatch for a project. I use it a lot actually. But suddenly now when I go to the browser, I can no longer access blocks or change values. Even the display boxes don't work now.

What have I done to do this?

Cheers

Mike

@reitinge Hi Jan,

That seems to do something. I've added a MUL block to *60. Might need tuning or level tick changing. RPM seems to be 100-150 low compared to requested speed.

Are the counter resets required or are they just incase you want to reset the count?

This is only for monitoring by the way. The fan reduces speed when torque demand is to high. So it's nice to just track requested speed against actual speed.

Cheers

Mike

@reitinge Hi Jan,

I've just tried putting 24v directly onto Din1 and it counts up. So I'm thinking maybe could be the resistor, as you said.

Is the counter I'm using also the right thing for this? Measuring RPM from an optocoupler? As I'm after a speed not an accumulative count.

Cheers
Mike

@reitinge Hi Jan,

Can I use the 5v or 24v off the HAT for this? Or does it need to be off board?

I’ve seen the counter count. But it seemed to go up in strange numbers. And stopped at 14. It was an accumulative count of sorts.

4, 7, 14, then stopped. Altering speed did nothing to effect the numbers

Cheers

Mike

Update:

So I have the variable fan speed working now. I had to reverse the output (duty cycle) using a LIN or CNDR block (0rpm=100%, 2000rpm=0%) Not ideal but it works. How it's wired is shown below.

Current test program

I still can't get the tachnometer working though. So any ideas or things people can see I've done wrong. I just don't even get a value to post process into RPM.

Cheers

Mike