Should update to specify that with the new bootloader you can avoid using a microSD card entirely and boot and run off the external M.2 drive. I've got it working right now. One less failure point and allows you to do everything off the SSD.
Additionally, you can always keep an updated microSD card around in case of disk failure - but SSDs are pretty robust.
It's as simple as just blowing the Stellarmate image onto the SSD and then plugging it into the USB3 port on your Pi (I'm using a Pi4 for this). If your bootloader is post Sept 2020 and you have no microsd card in it'll boot directly off the SSD.
I thought it might be helpful to share my experience of this, it was not quite this simple.
Using a Pi4 8Gb, updating the boot loader (see www.raspberrypi.org/documentation/hardwa...errypi/booteeprom.md
) was simple, but the result was not an 'automatic' change to being able to boot from USB.
I needed to edit the boot loader config (see www.raspberrypi.org/documentation/hardwa...bootloader_config.md
) which seemed to be simple, but the changes I made did not ever seem to be applied when I rebooted.
It turns out that despite the linked EEPROM page saying otherwise, I had to remove (actually I just renamed) the existing bootcode.bin file before I could successfully apply any changed to the boot loader config. It is still a pretty simple change overall, but the information provided seems a little misleading.
I now use a 12-to-5V DC converter (and a USB-C charging cable) to power the RPi 4 from a Pegasus Powerbox (which is attached to the telescope dovetail). No need for a dedicated RPi power supply.
Very convenient, I only have a quite thin 12V power cable made of silicon connected to the gear. Not much that mechanically disturbs the guiding.
Here's a link to the DC converter
Thank for this RPI4B guide with StellarMate. I appreciated the pictures. As I reviewed aliljenb’s picture, I tried this with my setup. I abandoned this design because of moments of inertia, radius of gyration, and center of gravity issues. I had a counterweight on the Vixen rail and still could not keep the motors from overworking.
I just picked up an 8G RPI4B. I like the idea of SSD use. I also like the idea of the OTA becoming the carrier. Not getting tangled up is the goal. I distribute my USB load between 2 4 port powered USB.
My first question is “How easy is this setup to achieve CG in X-Y-Z?
My my second question is “What is the total weight of this package with all of its components?”
Thank you for this guide. I will be reviewing its recommendations. Last night was beautiful, cool and dark. I just went from a 4G to 8G RPI4B with the new StellarMate installed on 120G SSD. StellarMate is very inviting from the WEB. Setting up my rig looked easy. I kept it very simple. I didn’t push my configuration to take in more items. One OTA, GPSD, joystick, and QHYCCD.
I had several problems of my own making. I didn’t setup fully by this guide. Thank you again for this guide.
I am at the latest update and current revision. GPSD works wonderfully. StellarMate asks if I want to use it for time keeping. Cool. I will use this guide in establishing location.
In the past, (AstroHub, AstroBerry, and StellarMate), I always went to the OS under VNC to set the OS location, time, and the TTYACM dance with my gear. Udevadm is my friend. Under the Web interface, creating a config was not possible. Creating a saved profile was not possible.
When I went to the OS, all that work was not remembered. No profiles were created. KSTARS web was running. KSTARS and INDI OS knew nothing about the web except it was running. No web profiles were created despite clicking saved. OS KSTARS complained about “ no telescope config found”. In KSTARS OS, Devices is the singular place with establishing configuration. It’s state had 0 configs. No problem, I can use this guide to establish saved profiles. I will look at INDI logs to see if this is a permissions issue.
3. Bare bones screen and updates
Under Indiweb, SM said, updates were needed to be installed. I click on “yes”. The download was said to be successful. Silence. ATAPI and another app were options to install. They downloaded and installed as submitted. Cool. Under VNC, I used APT-GET to update.
StellarMate application works well from iOS. I have an antenna and the rest of my gear to setup. Thank you again for this guide.
I use Stellarmate on a RPi4 4Go. I built myself a little powerbox, with 5V-5A for the RPI4. The OS tells me the power is not enough power!
I try with an external power 5V-3A specially for RPI4 and I have the same message.
If I remember correctly, I used ApplePiBaker (on OS X) to make a backup of the SD card as a image/or zip file on the mac and then ran it again to copy from the backup and install on the SSD (wiping it out completely is part of the process). I plugged in the SSD into the RPi4, removed the SD card, and powered the RPi4 up.
There is equivalent software on Windows, but I've forgotten the name.
120 MM Skywatcher Esprit on Celestron CGX, ZWO ASI 224MC guiding, Pegasus FocusCube v2+PPBA
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um. Triad Ultra Quad NB Filter
1) Odroid-N2 Ubuntu-mate 20.04.4 2) StellarMate RPI4 8G
The good, the bad, the ugly at sciencedowneast.no-ip.ca/zenphoto/