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- jenfoxbot commented on jenfoxbot's instructable Motion-Triggered Music Player
- jenfoxbot commented on jenfoxbot's instructable Prototyping Magnetic Boots!View Instructable »
Ahh foo no I don't think so.. but I do still have them :) happy to answer any questions or clarify things if you need, tho!
- jenfoxbot commented on jenfoxbot's instructable Using Arduino for Citizen Science!View Instructable »
Yayy that is so exciting you want to tackle the project! If you're just getting started, I would recommend the Elegoo Starter Kit (https://www.amazon.com/ELEGOO-Project-Starter-Tutorial-Arduino/dp/B01D8KOZF4/?platform=hootsuite) -- it's $36 and comes with an Arduino board, programming/power cable, and an assortment of goodies, including all of the sensors used in this project. It's by far the fastest and cheapest option.The elegoo knock-off boards (legal since Arduino is open source) are the best ones I've used -- other knock-offs might be cheaper but have lower quality or are more likely to break. If you have a budget of about $20, you can also get a single board (https://amzn.to/2yUVNJB) and source the individual parts, or try this kit which also almost all of the parts you'd need and w…
see more » - jenfoxbot commented on jenfoxbot's instructable Build an IoT Industrial Scale!View Instructable »
hah! that's such an adorable lil' scale! I love it :) Thanks for the info, that actually makes me super happy that someone was able to build a small business off this idea! My goal isn't to manufacture things but rather to show folks what's possible, hence why my projects are open source :) but i really appreciate the heads up! i suppose i would have appreciated a shout-out but eh, glad to have helped someone do something they love, solve a problem, and make new types of jobs. <3
- jenfoxbot followed Henri.Lacoste
- jenfoxbot commented on jenfoxbot's instructable Build an IoT Industrial Scale!View Instructable »
Hah! Thanks for the info -- I hadn't seen that project, but always glad these tutorials are useful for folks :) Out of curiosity, how do you know he was inspired by my build?
- jenfoxbot commented on jenfoxbot's instructable Faraday Cage Phone PouchView Instructable »
Good question! Tinfoil should work, really any conductive material works. The key is to make sure there are no air gaps which might be challenging w/ foil -- with creasing and breakage, you might have to re-do the case after each usage. Alternatively, you could use an all-metal box, or a metal box and make a lid out of foil. Microwaves also work, although they are less portable :) (also DEF do not turn on while your phone is in there as it will totes fry.) Hope that helps!
- jenfoxbot commented on jenfoxbot's instructable Prototyping Magnetic Boots!View Instructable »
Snagged 'em from a thrift store, but pretty sure they are hefty snowboarding boots! They were about $30. Snowboarding boots in should generally work since they are designed to keep your feet in :)
- jenfoxbot's instructable Simple & Modular Wearable Lights!'s weekly stats:
- jenfoxbot commented on jenfoxbot's instructable Micro:Bit Dog Door OpenerView Instructable »
Thanks Becky!! Very glad you enjoyed it :) It was super fun to make! I also love the idea of being able to use a micro:bit to improve accessibility in general!
- jenfoxbot entered Micro:Bit Dog Door Opener in the After School Challenge contest
- jenfoxbot commented on jenfoxbot's instructable How to Use (and Choose) a Multimeter!View Instructable »
Check the rating of your multimeter -- they can vary wildly. But yes, you absolutely MUST stay below the multimeter current rating -- otherwise you risk blowing a fuse or electrocution. Neither of which are fun and one of which could be very, very painful and/or deadly.I would also highly recommend Fluke multimeters for high current use because of the very real danger of high current electricity.And be sure to always have a second person with you who knows electrical safety. Hope that helps! Have fun and be safe!
- jenfoxbot's instructable Mini Robotic Table (prototype)'s weekly stats:
- jenfoxbot commented on jenfoxbot's instructable Mini Robotic Table (prototype)View Instructable »
Thank you! And holy moly that video is hilarious!! Rather on point about woodworking and building projects, too, lol.Thank you for sharing, I am totes going to show my student!
- jenfoxbot entered Mini Robotic Table (prototype) in the STEM Contest contest
- jenfoxbot commented on jenfoxbot's instructable Micro:bit Magic Wand! (Beginner)View Instructable »
Thanks! It's not exactly scratch, but it's very similar! If you are comfy w/ Scratch you can totes figure out MakeCode! Website here: www.MakeCode.orgLMK if you have any follow-up Qs!
- jenfoxbot's entry Micro:bit Magic Wand! (Beginner) is a winner in the Make it Move contest
- jenfoxbot commented on jenfoxbot's instructable How to Use (and Choose) a Multimeter!View Instructable »
Hello! Good question -- what setting are you using? For that, I'd recommend measuring resistance and/or continuity. Unless you are applying a source of electrical energy, you will likely not see any differences w/ the voltage or current measurements. Hope that helps!
- jenfoxbot's entry Micro:bit Magic Wand! (Beginner) is a finalist in the Make it Move contest
- jenfoxbot's instructable Micro:bit Magic Wand! (Beginner)'s weekly stats:
- jenfoxbot's instructable Micro:bit Magic Wand! (Intermediate)'s weekly stats:
- jenfoxbot commented on jenfoxbot's instructable Micro:bit Magic Wand! (Beginner)View Instructable »
heck yes!! :D Thanks very much!!
- jenfoxbot commented on jenfoxbot's instructable Micro:bit Magic Wand! (Beginner)View Instructable »
yayy thank you!! :D
- jenfoxbot entered Micro:bit Magic Wand! (Beginner) in the Make it Move contest
- jenfoxbot entered Micro:bit Magic Wand! (Intermediate) in the Halloween Contest 2019 contest
- jenfoxbot commented on jenfoxbot's instructable A Beginner's Guide to MicrocontrollersView Instructable »
I'm assuming you want to control the toy wirelessly, yea? One of my students built a robotic table w/ a drone radio controller and receiver and we connected 2 continuous servo motors to the receiver. Works great! That would be a quick and fairly easy approach, and radio controllers/receivers aren't super expensive (the one we used was about $35). Hope that helps!
- jenfoxbot commented on jenfoxbot's instructable A Beginner's Guide to MicrocontrollersView Instructable »
Well, dang! That's too bad re: BLE being unreliable -- is the signal giving out? I do <3<3<3 the Pi so I definitely support your return to those super cool boards. I'd also recommend checking out some of the edge boards, like the sparkfun edge board (https://www.sparkfun.com/products/15170, it has Google tensorflow on it, is voice-activated, and it can be powered with a COIN CELL!! So cool.
- jenfoxbot commented on jenfoxbot's instructable Build an IoT Industrial Scale!View Instructable »
Thank you!! Apologies for the delay, just seeing your comment. yes, this project should be sufficient for your hobbyist/small business application. Definitely a much cheaper alternative, which is why I wanted to build it! I used it to estimate impact force of a jump (also for small-business applications), and it was good enough for me to get actual in-situ data to which I could compare my calculations and determine if they were reasonable. it will be a lot easier to use as an actual scale :) hope that helps! lmk if you have any other Qs.
- jenfoxbot commented on jenfoxbot's instructable A Beginner's Guide to MicrocontrollersView Instructable »
lol, i didn't "forget", i purposefully did not include it. as indicated in the guide description and title, it is a beginners guide to microcontrollers. like the pi, beagle boards are computers, not microcontrollers. they are more expensive than the pi and i would not recommend them for beginners w/out any experience in electronics or coding.
- jenfoxbot's instructable Using Arduino for Citizen Science!'s weekly stats:
- jenfoxbot entered Intro to Citizen Science With Arduino! in the Arduino Contest 2019 contest
- jenfoxbot commented on jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!View Instructable »
Well that's new! Looks like Debian and/or DHCP has been updated. Probably a good thing :)Looking at the file and doing some quick research, looks like we want to use v4. We can identify which one by looking at the top of the file you screenshot -- it shows that the dhcp config file we are using lives under "DHCPDv4" (lines 3 and 4). So, do exactly what you did in the screenshot and leave v6 blank. Pretty sure INTERFACESv6="" does not need to be commented out although not positive on this so if you get an error down the line try revisiting and commenting out.LMK if you run into any other issues, always happy to help!
- jenfoxbot commented on jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!View Instructable »
That's awesome you're building this! Thanks for sending a screenshot -- there's a minor typo in the filename. Instead of opening the existing file (called "dhcpd.conf"), you created a new file titled "dhcp.conf" -- missing a "d" at the end. Rerun the same command w/ the proper file name and the actual dhcp config file should show up! (You can leave your new file there or delete it if you're comfy w/ removing programs)
- jenfoxbot commented on jenfoxbot's instructable A Beginner's Guide to Microcontrollers
That's so awesome!! Very happy to hear that you found this tutorial useful along your maker journey :D
View Instructable »Aww, thanks! Glad you found the tutorial when you needed it :D
- jenfoxbot commented on jenfoxbot's instructable How to Use (and Choose) a Multimeter!View Instructable »
That's awesome you took apart a multimeter, even if it's a bit tricky to get back together, ha. Is it likely that the dial was not in the "off" position? Can you adjust the rotary inside to move it to the off position? If you have another multimeter handy, you can use the continuity setting to determine what the rotary positions correspond to w/out providing power to the pulled-apart multimeter. Hope that helps!
- jenfoxbot commented on jenfoxbot's instructable Raspberry Pi Impact Force Monitor!
- jenfoxbot's instructable (Super Quick) Magic 8 Ball Costume!'s weekly stats:
- jenfoxbot entered (Super Quick) Magic 8 Ball Costume! in the Halloween Contest 2018 contest
- jenfoxbot commented on jenfoxbot's instructable Motion-Triggered Music PlayerView Instructable »
Yes, you can definitely loop the sound! You can use a for loop to play the song as many times as you want or a while loop that ends after a certain time -- here's a starting guide on those: https://www.pythonforbeginners.com/control-flow-2/...The for loop might be easier, this would repeat the song 10 times:for(i in range(10)): playMusic(goodStuffHere); i++Hope that helps! Happy making :D
- jenfoxbot commented on jenfoxbot's instructable Intro to the (Headless) Raspberry PiView Instructable »
That's awesome!! Heck yessss, great job!! :D
- jenfoxbot commented on jenfoxbot's instructable IoT Pet Monitor!View Instructable »
Yup, that should work just fine! I think the Pi 2 has onboard WiFi, if not you can get a WiFi dongle.
- jenfoxbot commented on jenfoxbot's instructable Micro:Bit Puppet "Text Messaging"!View Instructable »
That's awesome! Stoked to hear that you are incorporating this into the classroom! And yes, I'll post the hex file on my GitHub account tomorrow (https://github.com/jenfoxbot). Looking at the file quickly, I'm unsure if you need the break, I think I wrote it in Javascript and forgot to delete it. Try testing the code w/out the break to see if it works.
- jenfoxbot commented on jenfoxbot's instructable A Beginner's Guide to MicrocontrollersView Instructable »
Good suggestions! I wanted to keep the writing to a minimum, on this tutorial, but I will add in the programming languages.
- jenfoxbot's instructable A Beginner's Guide to Microcontrollers's weekly stats:
- jenfoxbot commented on jenfoxbot's instructable A Beginner's Guide to Microcontrollers
You are very welcome! Glad it was helpful! :D
Glad you found it useful!
That section as-a-whole makes it clear that computers use microcontrollers and microprocessors together. While you are focusing on a small section of the text, I see how that phrase might be misleading when taken out of context so I will update it.
View Instructable »Thanks for the feedback and suggestion. IMO, Picaxe are too advanced for complete beginners, but they are a good board for folks to transition into. Perhaps you can write up a tutorial on them!
- jenfoxbot commented on jenfoxbot's instructable Motion-Triggered Music PlayerView Instructable »
That's an awesome alternative approach, thanks for sharing!
- jenfoxbot's instructable (Easy) Light-Up Flower Pin's weekly stats:
- jenfoxbot commented on jenfoxbot's instructable Raspberry Pi Impact Force Monitor!View Instructable »
Thanks! Sadly I do not have easy access to a cat but that is an excellent idea for an experiment! Please do chat with your kitty about being a test subject :)The Pi should be able to record data that fast.. I forget what the data transfer rate is but I remember it being sufficient to see that sharp peak of impact force.If you end up doing the kitty experiment, please share! I'd love to see what you find :D
- jenfoxbot commented on jenfoxbot's instructable Raspberry Pi Soil Moisture SensorView Instructable »
well foo! there are a lot of factors that could be causing this. are there any shorts? did you coat the electrical connections in epoxy? where did you connect the GPIO pin? Also, use a multimeter to check the capacitance of the soil moisture sensor directly in water and in air to be sure that you're getting different values. if that is working, then it's not the sensor and the issue is somewhere in the hardware or software. best of luck!
- jenfoxbot commented on jenfoxbot's instructable Motion-Triggered Music PlayerView Instructable »
Good question! Yes, you can use an Arduino Uno, but you'll need a different method of hooking up speakers (there's no audio jack input). There might be a shield or you can connect them directly to the digital (analog?) pins. There should be a tutorial somewhere on how to do that..
- jenfoxbot entered (Easy) Light-Up Flower Pin in the Flowers Challenge contest
- jenfoxbot's instructable Raspberry Pi Impact Force Monitor!'s weekly stats:
- jenfoxbot entered Impact Force Monitor W/ the Pi! in the Microcontroller Contest contest
- jenfoxbot commented on jenfoxbot's instructable Simple Leaf Blower HovercraftView Instructable »
Good question! Yes, I think that should work. You can calculate the size of the hovercraft using the following: Pressure = Force / Area. The force is your weight + the weight of the hovercraft (F = (120 lbs+ 10 lbs) * 9.8 m/s^2 ). The pressure is given by the speed of the wind coming out of the leaf blower -- here's a good overview of that equation: https://www.engineeringtoolbox.com/wind-load-d_177...Hope that helps :D(TLDR:// yes, 150 mph should be sufficient for a 120 lb human with a hovercraft surface area of about 1 m^2)
- jenfoxbot's instructable Minecraft Gesture Controller's weekly stats:
- jenfoxbot commented on jenfoxbot's instructable Raspberry Pi Soil Moisture SensorView Instructable »
Happy to help! And hey, we're all beginners at some point! This was my first project so I totally know how it goes. Yes, you can use the same 3.3V pin for both the sensor and the relay. The relay won't pull too much current since it is mostly just looking for a change in voltage on the DC side -- that's why relays are super useful, you can use a small current and voltage to control a much larger current and voltage. Also, you can use the same ground pins for both. Related aside: all ground points need to be connected to the same place, or you might get funny readings (since voltage is a potential difference it is measured between two points, like dropping a ball at arm's length while standing on the ground vs. on top of a building, the ball will bounce the same distance even though you're…
see more » - jenfoxbot commented on jenfoxbot's instructable Raspberry Pi Soil Moisture SensorView Instructable »
Just one Pi, like you guessed it's both projects combined (soil moisture sensor and irrigation controller) -- it was all one big project but I separated them in write-up to make it easier to follow. I split the soil moisture sensor PCB from the irrigation controller and Pi because I wanted to be able to install the sensor far from the spigot. In retrospect, I could have just added longer wires to the sensor and combined all the PCBs in one box. Hope that helps!
- jenfoxbot commented on jenfoxbot's instructable Minecraft Gesture ControllerView Instructable »
Thanks! And hey, when I first started I wasn't super good, either! We are all beginners at some point :)All of the code is open-source so you don't need to worry about figuring out anything for yourself -- follow the build instructions and snag the code and you're good to go!
- jenfoxbot commented on jenfoxbot's instructable Anti-Facial Recognition Wearable No. 1View Instructable »
Heck yes, I agree! Thank you :)You should totally design your own! There are a ton of possible routes -- Step 1 covers how facial recognition software works and mentions key elements for tricking it, so check out that step for some ideas on where to get started. Float some ideas in your head and when you come up with one you really like, write it down and come back to it when you have time :)I'm slowly still working on this, or at least I'll post another one at some point.. If you beat me to and write it up, it I'd be happy to feature yours in this tutorial!
- jenfoxbot entered Minecraft Gesture Controller in the Epilog Challenge 9 contest
- jenfoxbot entered Minecraft Gesture Controller in the Minecraft Challenge 2018 contest
- jenfoxbot's entry Make Your Pi a (Local) Cloud Server! is a winner in the Raspberry Pi Contest 2017 contest
- jenfoxbot's entry Make Your Pi a (Local) Cloud Server! is a finalist in the Raspberry Pi Contest 2017 contest
- jenfoxbot commented on jenfoxbot's instructable LED Proximity Sensor GloveView Instructable »
Whoa, missed this comment, thanks for responding, MukulB8!
- jenfoxbot commented on jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!View Instructable »
Hmm I think I ran into a similar issue at one point.. can't remember what the specific problem was but I ended up redoing that part and then it magically worked. It could be a spelling error or a lack of internet connectivity.. or if you are using the same SD card and just redoing it, there is likely some configuration setting that is blocking it. if you haven't done it yet, try wiping the SD card and starting completely from scratch.Hope that helps! LMK if you continue running into errors and I'll do my best to help ya troubleshoot.
- jenfoxbot commented on jenfoxbot's instructable Make an Enter Key Button!View Instructable »
Thanks! And happy to help :D
- jenfoxbot commented on jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!View Instructable »
Hmm it seems like iptables isn't installed? Were you able to get the command below to run successfully?sudo apt-get install iptables-persistentAlso, wiping the SD card and starting over is a good way to test it. It took me a couple of times to get this all to work correctly, ha. I'm about to head out on vacation but leave a comment if you are unable to get it to work and I'll see if I can do some digging when I'm back early Jan. Best of luck!
- jenfoxbot commented on jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!
Foo!! Hmmm some debugging questions:1. You're connected to the Interwebs? 2. Did you run update and dist-upgrade? 3. Are you using Jessie Lite? 4. Did you run the commands in order they are listed
View Instructable »Yup! Once you set it up as an access point, you can use WinSCP or another file transfer protocol to wirelessly transfer files to your Pi. If you do a lil' research I"m sure you could find a python or linux code to do this automatically :)Also yes to the external hard drive! You might need to look up how to transfer files to USB via linux but it's definitely possible.
- jenfoxbot commented on jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!
hah! Grab your keyboard of justice and show 'em the light of Linux! The Pi might be the perfect intro for your friends, since you can use it w/ a Desktop OS which makes it less intimidating. If you want to show 'em something easier before diving into this, here's a tutorial that is like the "part one" for beginners: https://www.instructables.com/Intro-to-the-Headless-Raspberry-Pi/
Thanks! Yes, you can definitely use the Pi Zero. As long as you are using the Jessie Lite OS, the process *should* be the same.
Thank you! A friend mentioned piratebox, will have to check that out when I have the time. I'll take a look at Docker too -- definitely a newbie when it comes to networking but it's easier when other folks have already figured out the hard stuff!And thank you for the super helpful technical points!! Your comment re: WPA2 is on the last page w/ a link to your profile. This is why open-source is awesome :D
View Instructable »Thank you! :D (& I'll pass along the compliment to the pooch!)
- jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!'s weekly stats:
- jenfoxbot commented on jenfoxbot's instructable Make Your Pi a (Local) Cloud Server!View Instructable »
Yayy, thank you!! Very happy to hear that you enjoyed it (and the photos of my pup lol) :D
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Hmm this was awhile ago, so a Raspberry Pi 2 Model B probably? A Pi 4 would be way faster/more powerful, but also the code might have changed? Unsure -- worth a try!