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I implemented my knife edge by drilling a hole into the support 'stick' just large enough for the lamp to sit inside. I then glued one blade of a straight utility blade over the hole so it cuts the center of the light. I then added magnets above and below the light that would stick to the first and second blades allowing them to be adjusted.
Nice Instructible. I suggest eliminating the pull-down resistors on the buttons and use the arduino's internal pull-up resistors instead to reduce parts. Just change the logic and wiring so you get a ground when the button is pressed.Best Wishes.
Very nice instructable. By the way, the Arduino inputs have internal pull up resistors that you can turn on so that you can eliminate the 10K resistors. Here is a link that explains a lot about them: https://www.baldengineer.com/arduino-internal-pull...Best Wishes!
Beautiful work! I wonder for younger readers if you could activate each page by touching an exposed copper pad instead of using QR codes. Very nicely done. Thanks for sharing.
1. Pi Zero does not have built-in Ethernet, so no, this method is not suited to Pi Zeros. (There may be other methods tho that are suitable to Pi Zeros)2. No, once the super computer is setup you can run the programs on the cluster with no internet connection.
:-). Unfortunately I mailed one of the boxes I made this year so I can't guarantee they won't open ahead!
Advent Calendar BoxView Instructable »
Very nice instructible. (I didn't find the code for the project, I must have missed it.)Another variation would be to display the user's selections in binary, hex, and decimal useful for teaching binary number system. Another variation may be to see if someone could sequence through all combinations without repeats by switching only one switch at a time ( i.e. a grey code).Just for fun I sketched out a similar circuit using discrete components which really shows why using a microcontroller can replace lots of discrete chips and is more flexible should your requirements change!.Best Wishes
I added a 285 watt solar panel to my van with two 6v golf cart batteries to power my Celestron CGE14 telescope. Similar purpose just different choices in the build details. https://www.instructables.com/id/Mobile-Solar-Power-Station/
Mine used the 'booth' part almost exactly like this instructable. The electronics were more like the electronics of https://www.instructables.com/id/Raspberry-Pi-photo...Best Wishes
1. You have a hearse. Cool. Hope it is empty.2. What do you currently do with the power you generate? 75 watts could run a fan to cool the back but air conditioners suck too much juice (like 115 v 11 amp with unknown surge) Best Wishes!
Nice instructable! I love to see solar projects done well. I do not believe, however, that your single EverStart UH1 battery is providing anything near 220 AH. I believe they have a reserve capacity of 30, making them more like 20 or less AH. I'm also not sure how well they perform when deeply discharged. They are a good quality battery for the money, though, just maybe not designed for deep discharge applications.Best Wishes!
Sorry to have missed your question until now. I have no direct knowledge of ARINC 568 (It isn't even available at the ARINC store. Is it very old?). Many of the ARINC standards describe the protocols that are sent over ARINC 429 data bus. If so, then yes. If Arinc 568 is a different data bus then no, it wouldn't.Best Wishes.
Thank you. Unfortunately I reused the parts for other projects so I am currently susceptible to an EMP :-(. I'll have to get this system back in the stowed configuration just to be ready!
Yes! visit https://racheloffline.org/
Nice start!According to the Axis of Awesome you will need 4 chords to play any pop song ;-). So just a little more work and you can play them all!Best Wishes.
Nice instructible.Your circuit was a little difficult to follow, however. I would have labeled +15v as BATTERY and the +12V as something else such as SWITCHED_BATTERY. As shown it implies that you have several voltage levels and that you connect +15v to +12v.The purpose of Relay #2 is to switch off the power under the command of the microcontroller after it has been turned on via SW3. Wouldn't it be better to power Relay #2 coil from +12V instead of +15V? That way the relay 2 circuitry is powered only after the +12V is enabled thus ensuring it draws no power when not enabled.Best Wishes.
If you are willing to give up on the SW3 monitor and want to take it one step further and remove all high impedance de-energized paths, I think this would also work.Best WIshes
Maybe it is not his car!
Very nice instructable!I made mine on my van here (https://www.instructables.com/id/Mobile-Solar-Power..., also to be used for camping/astronomy. Lead acid batteries can out gas hydrogen when charging so be sure the vent them properly!Is the battery a deep cycle? You might want a deep cycle battery or you'll want to discharge it only a little bit to give the battery a long life.Back of the napkin calculations: If you want only 50% discharge on your battery then each night you will use at most 17 amp hours. Your 100 watt outputs say 7 amp hours in full sunlight and therefore should replenish the energy used in maybe 3 hours of sunlight. Looks like a good fit for low, winter sun. You'll produce more energy than you can store in the other seasons. You may want to consider adding anoth...see more »Very nice instructable!I made mine on my van here (https://www.instructables.com/id/Mobile-Solar-Power..., also to be used for camping/astronomy. Lead acid batteries can out gas hydrogen when charging so be sure the vent them properly!Is the battery a deep cycle? You might want a deep cycle battery or you'll want to discharge it only a little bit to give the battery a long life.Back of the napkin calculations: If you want only 50% discharge on your battery then each night you will use at most 17 amp hours. Your 100 watt outputs say 7 amp hours in full sunlight and therefore should replenish the energy used in maybe 3 hours of sunlight. Looks like a good fit for low, winter sun. You'll produce more energy than you can store in the other seasons. You may want to consider adding another battery when your pocketbook can take it to be sure you can continue to have lights after three cloudy days.Again, it was a very nice instructable!Thanks!
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