Tell us about yourself!
There is a picture (labelled "spaceship control panel schematic") in Step 4 that shows where the resistors go, but there are only 4 of them. The schematic shows 8 SWITCHES- 4 switches for the columns and 4 for the rows. The column switches provide a path to Gnd (the - (negative) side of the battery) from the LEDs. The row switches provide a path to the +5V supply from the LEDs. The 5V supply comes from a LM7805 device (available from mouser.com, radioshack (if you still have one), or maybe Frys.com, or other electronic suppliers like adafruit or sparkfun). The LM7805 converts the 9V battery voltage to a lower 5V supply that the LEDs can handle (otherwise, you'll destroy the LEDs). Note also that the LEDs are the special 2-color (usually red/blue or red/green) blinking variety.
Sai, Sorry, I never wrote up an instructable for the other ones I built & gave away. I'd be happy to guide you to some other projects that would show what the possibilities are. My favorite is the "Mission Control Desk" on YouTube at: https://www.youtube.com/watch?v=j6zseFi070E (not sure Instructables will let me put links here, but you can google for this). Another approach would be to build a modest control panel to use with the "Kerbal Space Program" Game. With this, people build a control panel with a microcontroller that can interface to the PC and mimic certain button presses. Just google "KSP control panels" and look at the various images. Hope this helps.
This was set by trial and error- I knew approximately the value I was going for, then adjusted the value until I got the brightness I wanted. In this case, 5mA worked nicely (5v-3v) / 390=5mA. No reason to drain the battery any faster, since it's sortof a pain to replace (have to unscrew the back- this was an intentional design decision to keep little fingers away from the sometimes-sharp wiring on the back).
Thanks for sharing! This looks awesome! I like additional switches, and the baseboard looks very polished.Robert
It's not a PDF- it's a microsoft Powerpoint file. They offer a separate Powerpoint viewer here: https://www.microsoft.com/en-us/download/details.aspx?id=13
Thanks. That gives me a pretty good picture of the interior environment. Happy camping!
Beautiful work and workmanship. Very clean design. Looks like you put a lot of thought into where things go and make use of all the available space. I was wondering how cold it can get outside and still be comfortable since the insulation is 1/2". Can you do winter camping with this? Did you use insulation under the flooring as well?
Thanks! Good luck. Would love to see pictures of anything you build.