Tag: ASC

All Sky Camera images

More Options

So in researching a few things I came across a 2016 page with Thomas Jacquin’s original setup.

This uses a wifi dongle on an old Pi 3 for connectivity, and just runs a power wire up through the bottom. Very clean and simple.

Here’s his list of parts:

I also came across the Alaskan Astro YT video on his All-Sky Raspberry Pi. Interesting approach. I do like using the PoE Hat to get connectivity and power, which runs to a larger all-weather box that has the PoE power hub, etc. He also 3D printed his enclosure, which is cool.

https://www.printables.com/model/618541-all-sky-housing-box-for-raspberry-pi-and-zwo-cam/files

Disabling Pi LEDs

So one of the issues that came up is LED light shining through holes drilled to allow air to circulate through the dome. While several ideas about shielding the holes and redirecting the airflow occured to me, a simpler option (of course) would be to just turn OFF the LEDs. Or you would think so.

After much web searching and several failed trials, I finally managed to get both the Pi 4b and Pi 5 LEDs to go off, and stay off.

Edit the file /boot/config.txt with you’re favourite editor (I use ViM) and add the following lines to the bottom:

# Disable the PWR LED
dtparam=pwr_led_trigger=default-on
dtparam=pwr_led_activelow=off

# Disable the Activity LED
dtparam=act_led_trigger=default-o
dtparam=act_led_activelow=off

# Disable Ethernet port LEDs
dtparam=eth_led0=4
dtparam=eth_led1=4

This settings seem to work on several different CPUs and Raspbian releases (at least so far).

Open Source Software

Software to run the AllSkyCamer needs to handle image capture and formatting, date/time stamping, location and weather data, presenting that image, building movies, building charts, etc.

That’s a lot. Fortunately, I’m not the first (and hopefully not the last) to look into this kind of set up.

https://github.com/thomasjacquin/allsky

 

AllSky seems to be the goto software for this type of observing. Lots of options and lots of thought.