Astrohat - An open hardware RPi Hat for astronomy equipment #49414
Thank you all for replying on the survey!
Here are some quick results from it:
Based on this feedback and fixes from v1.0 I went ahead and released a v1.1 version of Astrohat.
- Removal of RTC since it is expensive to do it right and people should connect a GPS (or get time from Kstars) anyway
- Formal adherence to the RPi HAT specifications to make software development and user experience much easier (EEPROM FTW!)
- Various component fixes on issues identified from v1.0
here is a pic of what v1.1 looks like
As I write this reply, v1.1 PCBs are in production and will soon be in my lab to continue testing.
Astrohat - An open hardware RPi Hat for astronomy equipment #54443
This is a bit of an update on my side:
Version 1.1 arrived and got assembled. All worked as expected and I can safely say that I am not expecting any major revisions for the schematic and electrical connections. There might be slight updates for component placement since I identified some things that could be done better.
Perhaps most importantly for version 1.1 is the fact that the EEPROM on the HAT works like a charm, meaning that the RPi on boot can identify that there is a HAT with specific needs present and assign quickly the right parameters on all peripherals and GPIOs. I am genuinely impressed by the cleanliness of the EEPROM solution for the HAT since it makes development and usage from end users so much easier.
Due to COVID-19 and some personal family priorities I had little progress on the software development for the past 2 months and things will be slow for the next month too. Since the hardware development is verified though I am inclined to send a board or two around to any takers that can commit on contributing for the software side of things. (@knro Jasem I am looking at you
Thanks for all your supportive messages and thanks for tagging along in this journey. Hopefully we will have something that all people can use soon!
Astrohat - An open hardware RPi Hat for astronomy equipment #54869
Eagerly awaiting any progress, willing to pay to give it a try, as far as hardware goes- I can easily fill up all the outputs. Is there still room on the GPIO for a couple I2C sensors for temp/RH and the such? You're going to give Pegasus power packs a run for their money, I suppose. I'd buy one of these over another UPBv2, no doubt.
Perhaps the biggest spec for me on this board is the 12V input to the hat- it powers the Pi, correct? Heck. YES. Much needed. Who has time for 5V when you're mobile? Too much struggle, imo.
Thanks for tackling this- it's going to be very useful. Hope you're doing well during lockdown.
Losmandy G11, Gemini II, 10" f/3.8 Newt (Ostahowski Optics),
TV Paracorr-2, 2" Starlight FT, HSM20, Pegasus UPBv2,
ASI1600MM Pro, ASI174MM Mini, ZWO LRGB, EFW, & OAG,
StellarMate on RPi3 and/or Astroberry on RPi4
KStars 3.4.1 Build 2020-02-24T07:38:50Z on Win10 (updated 20200506)