![]() Usermod -a -G cdrom,audio,video,plugdev,users,dialout,dip,input stellarium Setup the Stellarium user: adduser -disabled-password -disabled-login -gecos "" stellarium At this point we don't want any X stuff, we want just the base Lite Raspbian distro installed on an SD card.Īfter we have a working Raspbian copy running on our Pi, we can get some base things in place. Firstly, get Raspbian Lite working on your Pi. ![]() Hence the TFP401+800x480 5" LCD panel.įor software there are a couple of solutions that will run natively on a Pi, but I chose Stellarium due to its insane flexibility.Īnd on to the guide. You could very well skip building your own projector and just go with a Raspberry Pi and cheap projector and call it a day, but you will end up with 1080p input scaled down to whatever crappy resolution the projector does natively, and the kicker is that the projector will likely not run at its native resolution over hdmi, giving you a blurry and out of focus looking star map. "Why not use a cheap Chinese projector." Yeah, yeah, the issue I have was I wanted the crispest image possible, and full control over the throw distance. I ended up taking one from a cheap Chinese LED projector, as the entire projector cost less than a lot of the other options I could find. You will need to find something to use as a collimating/triplet lens. 800x480 5" LCD Panel (or cheap ebay one).I will use the Pi's GPIO to switch the LED (via MOSFET) and detect light level in the room (via LDR). The pieces are actually pretty straight forward, big LED, LCD panel, some optics and something to make the pretty pictures (the Raspberry Pi v3). My son was learning about stars and constellations in daycare and we realized that he is always in bed before it really gets dark outside, so I had the crazy maker-dad thought, lets build a realtime planetarium night light.
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