Helge replied to the topic 'Astroberry initial release' in the forum. 1 week ago

Dear Radek,

Quick question on the stepper - the one you mentioned here, is this a bipolar with 4 wires? If yes, how to connect to the PiFace? (reason why I am asking is that the 28byj48 seems to be a bit weak).

Thanks, Helge

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Helge thanked Radek Kaczorek in topic Astroberry Server 1 week ago
Helge replied to the topic 'Astroberry PiFace' in the forum. 2 weeks ago

Well, I have been using the Focuser 2 (GPIOA) from the beginning for the stepper that drives the focuser. For some reason, here the Output-pins 4-7 are powered.

Not sure where the pin base is set to 4, instead of 0, i.e. whether output 7 actually corresponds to MCP27s13-pin 28 (GPA7) or whether the sequence is twisted upside-down, i.e. output pin 7 is MCP23s17-pin 21 (GPA0), and 6 is pin 22 (GPA1) etc.?

For the filterwheel I wanted to use the Focuser 1 (which is assigned to GPIOB). Here the driver relates to the inputs 0-3, but that is not working. So question is, whether both focusers could be assigned to GPIOA, one to the Pins 0-3, the other (as is) to pins 4-7?

The below command from the library PiFace-focuser.cpp ( indiPiFaceFocuser2) refers to GPIOA, but could not get my head around, where the assignment to pin 4-7 comes from - would be really curious to understand:

mcp23s17_write_reg(payload, GPIOA, 0, mcp23s17_fd);

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Helge thanked Greg Jones in topic Astroberry PiFace 2 weeks ago
Helge replied to the topic 'Astroberry PiFace' in the forum. 2 weeks ago

Thanks Greg, never thought into that direction, will have a closer look.

How is the motor driver and sensor connected to the Rpi? Directly or via the PiFace? Would be great if you could share more details/picture of your project!

Best, Helge

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Helge replied to the topic 'Astroberry PiFace' in the forum. 2 weeks ago

"The PINs are not addressed directly. PiFace addon uses SPI bus available on RPi. This means that you need to access specific registers of mcp23s17 chip, which is the heart of PiFace, instead accessing specific PINs."

Apparently, the IndiPiFaceFocuser1 seems to address the Input/Output Ports 0-3 of PiFace Digital 2, (i.e. GPB 0-3), see datasheet for mco23s17. So far checked only with the voltmeter, tomorrow will do proper check. I have seen in your code that focuser1 addresses GPIOB, so that seems to make sense.

If all of this holds true, I can run the filterwheel, just controlling via number of steps, taking advantage of presets. Maybe it is already reasonably precise, even without optical encoder? Will keep you posted.

Best, Helge

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Helge replied to the topic 'Astroberry PiFace' in the forum. 2 weeks ago

Hi Radek,

I was wondering about the following: as reported, I can run with the PiFace Digital2-Board the focuser. For the small stepper (28byj48), I do not need additional power supply, and obviously no additional driver board. For the focuser, the PiFace uses the pins 4-7 by default. I.e. Pins 0-3 are still available (and can be used for a second focuser). Now, couldn't those pins be equally used to run a filterwheel (was thinking about "upgrading" my manual filterwheel, by attaching a.m. stepper motor)?

I had a look at the lib, piface-focuser.cpp, but my programming skills are too limited to modify. I guess it is the section around IndiPiFaceFocuser1, but cannot directly see where the a.m. pins are addressed, etc.

If I may ask whether you were considering to also integrate the ability to drive a filter wheel?

Best, Helge

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Helge replied to the topic 'Astroberry Server' in the forum. 2 weeks ago

Hm...I find it difficult to admit, but since I have run an update of the operating system, as suggested in the guideline (sudo apt-get update), now seems fine!

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Helge replied to the topic 'Astroberry Server' in the forum. 2 weeks ago

Dear Radek,

With rebooting I usually manage to get the system running again, after a few attempts. I reflashed the sd card, but issue is persisting. Could it be that it has to do with the certificate? (I saved the certificate on my laptop, and confirmed exception, following a security alert). Not sure what else I can do.

Btw: focuser runs smoothly, see picture.

Best, Helge

Best, Helge

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Helge thanked Radek Kaczorek in topic Astroberry Server 3 weeks ago
Helge thanked Radek Kaczorek in topic Astroberry Server 3 weeks ago
Helge replied to the topic 'Astroberry Server' in the forum. 3 weeks ago

I have removed wlan settings as suggested (thanks a lot!), unfortunately, I did not help. I need to refresh the main page over and over again, or switch the RPi off and on until I am getting connected so I can start KStar/Ekos. The connection keeps dropping off. Strange, it was not like that as the beginning. System became hardly usable - luckily it is raining...

Should I reflash the es card?

You mentioned I should try "restart" via ssh, - I receive a reply that I need to specify what to restart. Can you tell me what exactly I need to type in PuTTy-terminal (which job)?

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Helge replied to the topic 'Astroberry Server' in the forum. 3 weeks ago

Dear Radek,

Whilst in principle I am getting better using astroberry server and Ekos every day, I am increasingly having issues with the noVNC connection, either the screen turns black or I am getting an error message, see attachment. I could not yet find out, what the reason is (also tested detaching PiFace, checked powering and so on). Now I wanted to try disconnecting WLAN/wifi, maybe it interferes? But how can I do it? The command wlanconf is designed for establishing the connection, how can I remove?

Many thanks in advance,

Helge

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Helge thanked Radek Kaczorek in topic Astroberry Server 4 weeks ago
Helge replied to the topic 'Astroberry Server' in the forum. 4 weeks ago

Brilliant, connected to WLAN via terminal, as suggested.

Have already been using VAP - it is great, do all the things via laptop, no more need to occupy the Raspberry's USB ports with mouse & keyboard...

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Helge thanked Radek Kaczorek in topic Astroberry Server 4 weeks ago
Helge replied to the topic 'Astroberry Server' in the forum. 4 weeks ago

Hi Radek,

Eventually, I managed to recover the astroberry server. Reflashing the sd card required a thorough reformatting to make effective, took quite a while to get back on track. Still not clear to me how I can access my network "wirelessly" (Ethernet works fine). I set up the wifi connection under the menu "network connection", but then how can I access/activate? When I click on the network-icon at the panel, the option wlan-configuration comes up, I enter the password, then supposed to type the network name - but cannot activate the field, can only enter the password.

On the PiFace digital 2 with the stepper 28byj48, I connected as follows, applying piface focuser 2 (the wiring was suggested on Instructables, how to connect stepper to piface board):

Orange to Output 4
Yellow to Output 5
Pink to Output 6
Blue to Ouput 7
Red to 5V

I chose to connect to outputs 4-7, since only here the leds next to the outputs are flashing up.

Now the moves of the stepper look very erratic. I have no experience with a focuser and how it should behave, but that seems wrong.

Would be great if you could help once again.

Best, Helge

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Helge replied to the topic 'Astroberry Server' in the forum. 4 weeks ago

Hi Radek,

I am not sure how I managed to get here: I tried to establish wlan01 network connection amending the NetworkManager.conf file, by setting "managed" = true (not sure if that made sense - but how can I use WLAN connection, Ethernet works ok). Following restart, nothing worked, unable to reboot. So I reinstalled everything again, flashing the SD card with a new astroberry image. However, I lost the nice GUI, back to standard Ubuntu Mate, without ability to access the menu bar. After hours of trying to recover, would be great if you could give me a hint, where I got it wrong.

Best, Helge

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Helge replied to the topic 'Astroberry Server' in the forum. 4 weeks ago

Hi Radek,

As previously suggested, I downloaded the astroberry server image file, and it is just perfect for people like myself, with only very basic Ubuntu or programming skills. For sure, it is all looking very nice, very well thought-through and using is extremely convenient. Thank you for also making programs like oaCapture available, which I was also struggling / failing to install on my Raspberry - now it is all just there!

If I may ask, the original Astroberry driver "rpi-focuser" are you planning to include, or have I overlooked? I found the piface version in the drop down menu, when assigning the drivers to the devices applied (in Ekos), only.

Best, Helge

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