Thanks again Rishi!

I had that Hold parameter set to Medium/24 and I changed it to Medium/15. I have a Zwo OAG, ASI290MC, SX filter wheel and QHY183M in my train so I think that this would be a medium gear.. am I right?

It seems that now is working right without any overheating . I put the temperature probe stuck to the focuser case and is not detecting any temperature raise...

The problem now is exactly that: the temperature sensor is not read by INDI driver. Only is read when you start the drivers and connect the gear, but temperature doesn't change. I tried to keep the sensor in my hands a couple of minutes to warm it and driver is stiil at its initial read. Then I disconnected and stop the driver and restart and reconnect and at this moment the sensor read the temperature increment.

it seems that the driver (or the focuser itself) is not reading (polling) or sending any temperature data no more than at starting time.

Someone has experienced the same?

Thanks

Paco L.

I guess 25mA is a bit too much current.

I don't yet have the temperature sensor but I just saw a post on CloudyNights where someone has successfully attached a cheap (I mean a few Euro's) temp sensor. I will get hold of one and try it out.

Hi all,

- I have pulled the nightly build for StellarMate and test the new version 1.3. It works!

- Indeed it seems that the temperature is read out once and then does not change. I didn’t look at this until now, because Ekos does not have the function to refocus if there is a change of temperature.

- I don’t have heating problems up to now. Maybe its because I have a lightweight DSLR. But thanks for the interesting tips concerning this matter!

Great to hear.

I have just ordered a temp sensor for €1.81 with free postage from China! It will probably take a few weeks to get here. I have taken a look at the code and it looks OK, if someone knows how to run with debug on I would love to see the logs. Maybe I can see where its going wrong if I have the logs.

Here is a logfile.It started with a temperature of 23.18. Then i put my hands around the sensor, so it should have heat up a little bit. But after about 5 minutes it is still at 23.18.

I've debugged the code and the problem is in the TimerHit() method. The temperature frequency counter is increased and then compared against the update frequency. When they match then the temperature is updated. In this case it only works once as the counter is never set back to zero. I've added the last line in the if statement and now it works as expected:

Maybe someone with access to the repository can add this to the code .

Hi all,

I opened a case directly with Primalucelab and they say that hold current should be 5 mA or 10 mA at maximum. I have tested my SestoSenso with 15 mA and overheating disappeared.

Regarding temperature sensors, I've tried the one that Pegasus Software supplied with its Dual Motor Focuser Controller (DMFC) that I want to use with my Meade #1209 Zero Shift Microfocuser. It works fine with Sesto Senso but as described (read once only). It's curious, but starting temperature was 23.18 degrees.. the same obtained by NH... Coincidence??

I also tried with a similar sensor purchased from AliExpress for a couple of euros. They Don't work neither in Sesto Senso nor DMFC. I asked to Pegasus Software about 2.5mm jack pinout and they said that this kind of cheap sensors won't work with DMFC and only will work with the original one that costs 18€. Cheap if compared with the 45€ worth for Sesto Senso original sensor.

If someone is able to make work this kind of cheap sensors, please advise.

I will open a different thread with my DMFC issues. Jasem is working in that, but I have no news yet.

Thanks!

Hi again,

By the way, maybe could be a good idea add refocus feature based on temperature changes. I have at least two sensor in my gear: the one from Sesto Senso and the one from PPB from Pegasus Software...

Also some "temperature offset calibration" would be helpful to unify all temperature readings from the sensors...

Thanks

Paco L.

I will add this when I push the 1.4 version.

Thank you very much.

I have the original probe for the Sesto Senso. I agree that it is a bit overpriced but it is delivering very reasonable temperature values. The major downside for me is the long cable (~1m). I had to wrap it around my scope several times to get out of the way.

Great!!!

Hi all,

Apologies for hijacking the thread.

I have an issue with my Sesto which only manifests in Ekos. The problem I have is that no matter which direction I tell it to focus, it will always travel in. Never out.

I’m running on Win 7, latest stable SM build 1.4.0 and latest Kstars build.

Hopefully someone can help.

Thanks in advance.