I edited this last script to also run a small python file that posts the images shortly after making them. These passes are then scheduled into the Pi’s task queue, and the last script is called by the queued events and record the audio and processes it into MCIR and default filtered images with a map overlay. The Instructables guide makes good use of some scripts that are run automatically by the Pi’s cron table daily to check Predict for NOAA passes with over 20 degrees of altitude. I also installed Twython to enable the Raspberry Pi to interact with Twitter’s API through Python code. I set up the Raspberry Pi with Raspbian on a 32GB MicroSD card and loaded all the software as detailed on the Instructables guide: rtl-sdr, SoX, at, predict, and WXtoIMG. I ran an SMA cable from the coaxial strand of the helix into the inside of my garage and found that it did not interfere with the door and wiring through the walls would not be necessary.
I laser-cut a small acrylic plate bolted my Raspberry Pi onto it before suspending it from the ceiling. I used a quadrifilar helical antenna that I built for 137MHz frequencies and I set it up on the roof of my garage. I’ve long enjoyed setting up and recording passing NOAA satellites, and when I saw this Instructables guide on making a Raspberry Pi into a weather satellite receiver, I knew it would be a great next step. My QFH on the roof wired to a Raspberry Pi indoors
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