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    Software How-To

    Know How… (Audio)

    Get your gaming on! Jason Howell and Ars Technica’s Sam Machkovech bring you 12 episodes and cover it all, from tips and tricks, consoles, gaming rigs, controllers, Virtual Reality, classic gaming, live gameplay, mobile gaming, console hacking, and more! Plus, they’ll wrap up with a holiday game guide.

    Although the show is no longer in production, you can enjoy episodes from the TWiT Archives.

    Advertise
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    • Spotify

    Latest Episodes:
    KH 373: The Secrets of Geek Travel - Part II - Securing your data and devices, business travel, office VPNs, Encrypted USB Debices, SSDs with Bitlocker Mar 15, 2018
    Show notes

    Protect my Data on the Road!
    "I'm a TWiET listener who just started watching Know How. On a TWiET episode several years ago, you and Cheebert talked about traveling securely with your data in "hostile" countries. What would you recommend for a traveler who needs to access sensitive data offline? I won't have my office VPN and need a solution that can carry just under 50GB of data. It's ok if the device is destroyed as long as no 3rd parties can read it. Ideally, I need a solution that works well with my company-issued Dell laptop running Windows 10 Enterprise and my home desktop running Windows 10 Home. The office will pay for a solution up to $200 without me having to ask for special permission. Love the show!" - Martin P (New York, New York)


    Encrypted Flash Drive
    Kingston Digital DT2000 $100-$160

    • USB 3.0
    • AES 256 Bit Encryption
    • 6-Number PIN (Automatically locked when removed from a Computer)
    • Encryption Key deleted after 10 failed attempts
    • FIPS 197 (Required for Enterprise Standard Security)
    • Win 10, 8, 8.1, 7 // Mac OS 10.9+ // Linux 2.6+ // Chrome OS // Android
    • Unlike some other "Encrypted" USB drives that are really secured controllers, there is actually an encryption/decryption engine on the drive itself. This means that All data on the NAND flash itself is encrypted. (Vs. Just having the controller allow/deny access to unencrypted data on the Flash)
    • Has Read-Only and Timeout locks (Activated by Keypad)

    BitLocker

    • Logical disk encryption tool built into certain versions of Windows
      • - Vista Ultimate and Enterprise
      • - Windows 7 Pro and Enterprise
      • - Windows 8/8.1 Pro and Enterprise
      • - Windows Server 2008 and Later
      • - Windows 10 and Enterprise
    • Uses AES 128 or 256

    Enabling BitLocker on a Storage Device

    1. Open "This PC"
    2. Right-click the icon of the drive you want to encrypt
    3. Select "Turn on BitLocker"
    4. Use a password or Smart Card for Authentication (Or Both - smartcard will still require a PIN) * NEXT*
    5. Choose if you want to back up your Key * NEXT*
      • You can choose to save it to your MS account, a file that YOU keep, or print it
      • Whatever you choose, make sure you understand the consequences!
      • If you save it to your account, anybody who has access to your account will get your key
      • If you save it to a file, you need to protect the storage device that has that file
      • If you print it, treat the printout as a Top Secret document
      • If you chose either of the latter options, DON'T KEEP THE BACKUP WITH YOUR STORAGE DEVICE!
    6. Encrypt the entire drive on only the space that has been used. * NEXT*
    7. Choose your Encryption Mode *NEXT*
      • "New Encryption" is what I prefer if I'll be using the storage device with a SINGLE computer
      • "Compatible Mode" is what I use if I'll be moving from computer to computer (all have to support BL)
    8. "Start Encrypting"

    Important Note:

    • You CAN'T create a BitLocker encrypted volume on Windows 10 Home (You need Pro/Enterprise for that)
    • However, you CAN read a Bitlocker Encrypted Volume (Read Only)

    Around the World
    Know It Alls,
    "I'm a second-year Communications student at Santa Clara University. This summer I'll be backpacking around Europe with a group of 5 friends, documenting our travel. We're packing light: Only what we can put in a backpack that must be able to fit in an airplane overhead bin. My load out is currently using about 2 squarea

    I

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/373

    Hosts: Fr. Robert Ballecer, SJ and Jason Howell


    KH 372: The Secrets of Geek Travel - Part I - Travelling with technology, universal power, international travel, portable power Mar 08, 2018
    Show notes

    From the content of Padre's inbox, a lot of our KITAs are planning trips in 2018. Of course, travel for the TWiT army isn't as simple as dropping some clothes in a bag. We need our GEAR to truly enjoy a trip, be it across the country or across the pond! Megan and Padre take a look at some practical tech for you to bring on your next jaunt.

    "I'm planning a 6-month adventure and I need some tech advice. I'll be spending two weeks each in Dublin, Amsterdam, Berlin, Paris, Rome & Venice, Barcelona, Mykonos, Seoul, Tokyo, and Manila. I'm really good at packing light as far as clothes are concerned, but I need tech that will work everywhere so I can upload stories, pictures - and videos. I'll be bringing my 13" Macbook Pro (2017) to write and edit videos. Also, a dozen USB-powered devices, including my unlocked iPhone 8S, Plantronics Backbeat Pro, Apple watch, and an international hotspot through which I plan to use my phone. I'll also have a few AC-powered gadgets, like my electric tea kettle and a UV water sterilizer, that can support all voltages. Suggestions for travel efficiency? Secrets you've learned over the years that you can share?" - Seamus from San Diego, CA.

    Let's break this down: 1. The equipment he's bringing: - 2017 Macbook Pro (2017) - iPhone 8s (Unlocked) - Apple Watch - USB-charged headphones - USB-charged Hotspot - (Total of a dozen USB devices) - AC Tea kettle - AC UV Water Sterlizer 2. This is what he needs to do: - Power ALL his devices, no matter what country he's currently in - Stay connected - Stay Mobile 3. These are the maxims that I follow when I travel: - Flexibility (I like to bring tech that can be used in many different ways) - Portability (I like tech that lets me REDUCE the amount of tech I have to bring) - Redundancy (I assume that gear will break or be lost. Do I have a critical point of failure? Can I fix it?) 4. So these are the things that I see him needing: - Power (Charging) - Power (Portable) - A connection fallback 1st Issue: Power (Charging) * Seamus' itinerary has him traveling to 11 countries using four different power standards. - Denmark, Ireland, Germany, France, Italy, Spain, and Greece all use 230volts, 50Hz. - South Korea & the Philipines use 220 volts, 60Hz - The United States uses 120 volts, 60Hz - Japan uses 100 volts 50 & 60Hz * Some of those destinations will have power grids that can be a little unpredictable. * It sounds like he's got gadgets that all use the US standard and plug. Anker Power Strip ~$30 * Will operate on voltages from 100 to 240. (So it works in ALL countries he'll be in) * Provides 6 outlets that use the US standard plug + 4 x 2.4amp USB ports * 18-month warranty (Good... b/c this thing will get some use!) myCharge HubMax Portable ~$90 * Will operate on voltages from 100 to 240. (So it works in ALL countries he'll be in) * 10,050 mAh of capacity * Integrated Lightning and micro-USB cable * 1 x 3.4A (shared) USB Port * Fold-out-prongs * This unit will do Pass Through! Anker USB Type-C Premium Wall Charger ~$30 * 60 Watts of power * 4 x 2.4amp USB Ports * 1 USB-C PD Power 2nd Issue: Power (Portable) * Seamus now has TWO different ways to get power INTO his devices (the power strip and the Wall* B

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/372

    Hosts: Fr. Robert Ballecer, SJ and Megan Morrone


    KH 371: Soldering Without Poisoning! - Basic soldering techniques, soldering tools, splicing wires, hacking Teslas Mar 01, 2018
    Show notes

    Tools:

    1. Soldering Station
      • Zeny 3in1 Soldering Station ~$85
        • Digital Soldering Iron
        • Hot Air Rework Gun
        • DC Power Supply
        • Voltmeter
      • Zeny 2in1 Soldering Station ~$65
        • Digital Soldering Iron (100-500 degrees C - Up to 700W)
        • Hot Air Rework Gun
    2. Wire Stripper
      • Hakko Wire Cutter ~$5
    3. Helping Hands
      • Helping Hands ~$8
        • Any numbers of arms, clips & Magnifying glasses
    4. Paste, Wick and Soldapult
      • Desoldering Wick & Solder Sucker ~$7
      • Soldering Paste ~$4
    5. Heat Shrink Tubing
      • URBEST 530 piece Assortment ~$8
      • URBEST Adhesive-lined HST ~$12

    Some Basics:

    1. Assume you will damage the surface on which you are working! (Seriously... you've been warned)
    2. Silicone-Insulated Wire is better than Plastic-Insulated Wire
    3. Heat the Wire/Pad/Part... NOT the solder. You want the solder to flow ONTO the Wire/Pad/Part
    4. Keep your tip Clean!
    5. Heat Matters! - You need enough heat in the tip to flow the solder BEFORE the heat destroys the Wire/Pad/Part
    6. Tips Matter! - The shape and side of your tip determines how much heat it holds and how quickly it will transfer that heat to the wire/pad/part
    7. The Iron is either being USED, or it's in its cradle.
    8. Don't forget the heat shrink! (Otherwise you'll be cutting the solder joint you just made!)

    Let's Flow it!

    1. Cut and strip
    2. Tin the iron (Lets you know when it's hot enough)
    3. Heat the wire
    4. Apply the solder to the wire and let it flow into the strands

    Let's Flux It!

    1. Cut and strip
    2. Apply paste
    3. Heat the wire
    4. Apply solder and let it flow into the strands

    Let's Join it!

    • We're going to show you a few different styles of splicing wires together

    Pigtail/Rattail Splice

    • (Wires are parallel - Exposed ends are twisted and soldered, then insulated)
    • Typically used inside of junction boxes
    • Pro: VERY easy to do
    • Con: Cannot take much mechanical stress

    Western Union Splice

    • Wires are joined at the middle, then backwound
    • Make sure to add the heat shrink BEFORE you solder
    • Pro: Strong
    • Con: Trickier to master

    Mesh Splice

    • Strands are pushed together and the wires are twisted and smoothed down
    • Also needs HS BEFORE soldering
    • Pro: VERY STRONG, looks good
    • Con: PITA

    Through-Hole and Pad Soldering

    1. Cut and Strip
    2. Tin
    3. Heat the pad, not the wire/solder


    The Tesla Project


    Let's Poke Around

    1. The Car uses a 14V LiPo cell that's inserted into the back of the car
    2. It has a mechanical steering linkage
    3. It has a switch for reversing power
    4. It has a foot pedal for activating the motors (They're on or off... no speed control)
    5. It uses dual motors

    So... we can deduce a few things:

    1. The Lipo PROBABLY flows through the power switch (forward or reverse) then the pedal to the motors.
    2. The motors run in opposite directions to drive the wheels in the same direction
    3. We're going to need a heavy-duty servo that can move the steering linkage.

    We're going to need some heavy-duty gear

    • DS3218 - Full Metal, Waterproof 20KG Servo ~$19
    • 320A 7.2V-16V Brushed ESC ~$13

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/371

    Hosts: Fr. Robert Ballecer, SJ and Jason Howell

    Sponsor:

    • Ring.com/KNOWHOW

    KH 370: Switch How - Part II - Using Google Auto, Google Photos as Killer App, iOS Animojis, iPhone is too perfect Feb 22, 2018
    Show notes

    It's the last week of the iOS/Android switch and we've got Jason and Megan back on the show to give us their final thoughts about living 6 weeks in enemy territory! What does Jason like about iOS? What does Megan want Apple to copy from Google? Are they ready to swap back to their own devices? -- It's all happening this week on "Know How"!

    TWiT Switch - Megan on Android: Squeeze to Assistant - I like the quick access and Assistant is definitely better than Siri, but I didn't have actual conversations with the assistant as I always imagined I would if I had better access to it on iOS. Android Auto - Like last year I enjoyed using Android Auto, an app that turns on automatically when your car connects to Bluetooth. But unlike last year, iOS didn't include the Do Not Disturb While Driving feature that I use regularly. Android Auto lets you get away with a lot more and actually alerts you when you get a text message, which isn't a good idea for someone like me who feels like she needs to see who texted her. Android Auto doesn't seem to have many updates since last year and I forgot about it, unlike Do Not Disturb While Driving, which turns on automatically. Reply app -offers smart replies to all of your messaging apps. Works with messages, Twitter, other email programs, etc. Jason Howell on iOS: Apps I particularly liked...Activity and Health apps (quantified self... I really appreciate how Apple lays it out, the level of detail, and I like the rings!)Clock (hated at first, then discovered the Bedtime feature which I'm really digging... How much sleep do you need? Then it does the work for you including what time you should go to bed... soothing alarm in the morning, sleep analysis)Audible (This is a sponsor, but I like the layout of the iOS app better than on Android. The shopping aspect isn't a glorified web browser, it's more native on iOS and looks much better)Evernote (audio recordings sound crystal clear, far better than they ever sound on Android)LastPass (Face ID integration is really really nice) Apps I have not liked as much...Anything Chromecast (Apple hates Chromecast, or Chromecast hates Apple... not sure which)Google app (Just that its less integrated on iOS than Android obv. 2-factor auth, for example, takes more effort on iOS than on Android)Drive (Scan functionality is missing and I use that ALL the time)LastPass (copying ID/PW into apps is more laborious than on Android, particular now that Autofill is implemented deeper in Oreo) Apps that are nearly identical in every necessary way...Inbox, Twitter, Allo, etc Randomness...DND while drivingAlso: Animoji (used rarely tbh because it's tied to iMessage)Gestures Padre's super-awesome, mega-mega cool stuff! The ROVA Selfie Drone (By IOTGroup) ~$150 What you get in the box:* ROVA Drone* 2 x 2s (7.4v) 1200mAh battery* USB Charger* Carrying Case* 16GB SD Card What is it?* a phone-controlled drone (iOS or Android)* Connects via WiFi (Password 00000000)* 8 Minutes of flight* Forward-Facing Camera + Downward facing camera (12MP/5MP)

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/370

    Hosts: Fr. Robert Ballecer, SJ, Jason Howell, and Megan Morrone

    Sponsor:

    • ITPro.TV/knowhow - use the code KNOWHOW30

    KH 369: Switch How - Part 1 - Switching from iOS to Android and back again. Feb 15, 2018
    Show notes Megan Morrone and Jason Howell join Fr. Robert to show how to transfer your data, text messages and apps when you want to switch from iOS to Android or vice versa. Android to iOSHave: Logged in Android Device, wiped iPhone XAndroid: Install Move to iOS appAndroid device: Install "Move to iOS" app
    • Transfers much data, but no apps/music/passwords
    iPhone: Start setup like normal and setup manually
    • Get to "Apps and Data"
    • "move data from android"
    • Enter code from iPhone on Android to establish connection via WiFi Direct
    • Android asks which data to move over
    • Can transfer Google Account info for easy account access, Chrome Bookmarks, Text messages, Contacts, Photos/Videos
    • Select and Next
    • Transfer begins
    • Once finished the right data should reside in the right apps on iOS
    • Finish signing into (or creating) your Apple ID
    • Once you get in, any Google accounts will need to be authorized with PW/2 factor auth
    • "Add your Android Device Apps for the App Store?"
    • Free apps will automatically download (in my case, all the Google apps)
    • Google has a whole suite of its apps available for iOS
    • TIP: It might save you time to simply sync photos to Google Photos on Android, and not transfer the camera roll which can take a LONG time due to file size
    Hey 3S (Be Weloop)
    • 1.28" Touch Screen
    • Weighs just 38g (Apple watch is 56 - 125 grams // Samsung Gear S3 is 60g)
    • Bluetooth connection to iOS and Android
    • 270mAh battery
    • GPS + AGPS for positioning information
    • IP68 (Waterproof to 50 meters)
    • Measures steps, distance, calories burned, floors climbed, active vs. passive minutes, heart rate.
    • Notifications for mail, social media apps, etc.
    • Lasts for up to a month on a single charge
    iOS to AndroidBack-up in iTunes if you're going back to iOS
    1. Find Wi-Fi, a charger, and a few hours
    2. Download Google Drive on your iPhone or update the app if you already have it.
    3. SIGN IN to your personal account. Google for work won't have a backup option.
    4. Backup your Content in Google Drive - Contacts, Calendar, Photos, Videos (this could take several hours)
      1. Don't close the app or turn off the screen.
      2. MENU --> SETTINGS -->BACKUP
    RE: Photos: Choose high-quality (free) or original (counts against your storage.) Here's where you might want to consider buying storage. (Bonus: It's cheaper than iCloud)
    • You can stop backup and resume later if you need to.
    "KEY TO SUCCESS: DEREGISTER iMESSAGE I always forget this step and it's my own damn fault that I don't get messages. Do this before you take your sim out of your phone.
    • Not de-registering iMessage is like breaking up with a boyfriend and keeping his record collection.
    Import iMessages with iSMS2droid

    Hosts: Fr. Robert Ballecer, SJ, Megan Morrone, and Jason Howell

    Connect with us!

    • Don't forget to check out our large library of projects at https://twit.tv/shows/know-how.
    • Join our Google+ Community.
    • Tweet at us at @PadreSJ and @TWiT.

    Thanks to CacheFly for the bandwidth for this show.

    Sponsor:

    • WordPress.com/knowhow

    KH 368: Multirotor 101 - Part III - Padre and Jason build a FPV system for the ever-popular SYMA system. Feb 08, 2018
    Show notes Feedback:FPV Help -- William B. "KITAs, I am excited that you have brought drones back to Know How! I watched when you did drones in 2015, but only recently have I been getting very much into designing and building my own. I started with the trainer you suggested and have graduated to 250 and 450 class quads, but now I want FPV. I've been looking at some options and they all look either too expensive or too complicated. I'm not sure if I want goggles, because I actually like to SEE my drone in addition to being able to see FROM the drone. What are my options and what would you suggest for a budget of ~$200?" Eachine OTG Receiver ~$23
    • Allow me to interface a receiver with my PROPERLY Equipped Android phone or tablet
    • 5.8 Ghz (so it won't crowd the already crowded 2.4Ghz spectrum
    • THIS WON'T WORK ON ALL DEVICES!
      1. Must support OTG (On The Go)
      2. Must support UVC (USB Video Class)
    Eachine TX526 Transmitter ~$18
    • 5.8Ghz (40 Channels)
    • 3 Output power levels (25/200/600MW)
    • Can transmit audio AND video
    • 7-24 Volts
    Eachine RC832 5.8Ghz Receiver ~$15
    • 5.8Ghz
    • 48 channels
    Eachine TX01 NTSC Super Mini Transmitter + Camera ~$22
    • 5.8Ghz
    • 25mw
    • Combines a camera with a transmitter/antenna
    • Can run on 3.3-5v (Can be run on a single LiPo)
    Eachine EV100 720*540 5.8Ghz FPV Goggles ~$100
    • Diversity Antennas
    • Front-Facing Camera
    The STL files for the FPV Mount are at the link below:https://www.dropbox.com/s/oa6e6ezud3s62iz/KH368_FPV.zip?dl=0 Syma X5c ~$35Exercises
    • Hovering above the ground effect
    • Nose Out
    • Circle of Death
    • Nose In
    The ROVA Selfie Drone (By IOTGroup) ~$150What you get in the box:
    • ROVA Drone
    • 2 x 2s (7.4v) 1200mAh battery
    • USB Charger
    • Carrying Case
    • 16GB SD Card
    What is it?
    • a phone-controlled drone (iOS or Android)
    • Connects via WiFi (Password 00000000)
    • 8 Minutes of flight
    • Forward-Facing Camera + Downward facing camera (12MP/5MP)

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/368

    Hosts: Fr. Robert Ballecer, SJ and Jason Howell

    Sponsor:

    • casper.com/savings

    KH 367: CES for Your Car, Wrist, and Bottom - Alexa in the car, a smartwatch with month-long battery, and exercising in the office. Feb 01, 2018
    Show notes

    The toys from CES 2018 are starting to arrive in the studio and Patrick/Padre are ready to give you a first look! From Alexa in your vehicle, to a battery that charges your phone AND your car, to a smart watch that only needs to be charged once a month, and a way to exercise in the office, we've got the swag you need to see!

    Roav Vivo ~$50

    • 2 x PowerIQ-equipped USB Ports (Automatically charges at the highest rate)
      • iPhone 7 in 2.2 hours instead of 3.2 hours
      • iPad mini in 3.6 hours instead of 7 hours
    • But the big feature is Amazon Voice Assistant
    • It connects to your Android/iOS phone with Bluetooth 4.1 -- AND then your phone connects to your car
    • It has dual MEMS microphones and a dedicated Noise reduction chip so that it can hear you in a noise car cabin

    This enables:

    • Hands-free calling
    • Control over ANYTHING in your Amazon voice assistant network
    • 25,000 skills
    • Audio-enabled directions and phone functions

    Demo

    • App
    • Audio Book

    Splitsecnd (Split Second) $299

    • Emergency response device (Crash Detection and Response) (Lifetime Coverage)
    • 3G Connectivity
    • GPS with web-based dashboard
    • Integration with Amazon Voice Assistant
    • REAL-TIME location monitoring and geo-fencing
    • Location history
    • Battery backup (can't be stopped by cutting power in accident or theft)

    Pi-Hole Woes

    - Jason Brown

    "I'm trying to get a better handle on how Pi-Hole works. My wife and I signed up for Hulu's ad-free option. Apparently, some shows aren't part of this agreement, so they give you an ad at the beginning and end of certain shows.

    We just started a show that was supposed to give us those beginning/end ads, but ended up going straight to the show.

    So, do we think that was because of a glitch on Hulu, or did Pi-Hole just do it's job? Every browser-based ad-blocker always gave us a blank nag screen for 30 seconds. But that didn't happen this time. So it feels like the nature of 'ad-free Hulu ads' might be different than the normal ones.

    There's so much going on with ad-blockers and anti-ad-blockers, that it's hard to keep up with. So I'd love it if someone more versed in the subject could provide a simple primer.

    What I know (I think) is that ad-blockers only affect 3rd party ads. But natively hosted ads aren't typically affected. So is this some weird case where Hulu has such an indirect connection to the ads that I was able to skip them entirely?

    I want to try to educate others about ad-blockers, and how different types of ads are affected. But I don't want to regurgitate misinformation."

    How do Browser-Based Ad-Blockers work?

    • As content is loaded into a browser, it looks at the incoming page and removes (or replaces) known ad-scripts AND sites that are known to serve ads.
    • This means your ad-blocking experience will depend on them updating their script and site list.

    How does Pi-Hole work?

    • It's not looking at scripts at all. (Not enough power)
    • It's only looking at the DNS requests coming from and computer configured to request sites THROUGH the Pi-Hole
    • This means it can't stop native requests (unless specifically black-listed)

    Roav C2 Dash Cam ~$60

    • 1080p sensor with a 145 degree f2 wide-angle lens
    • WDR Sony Exmore IMX323 sensor with Wide Dynamic Range and nigh-vision capabilities
    • Steel frame for temp-resistance
    • Internal battery
    • 3" LCD screen
    • SD card slot
    • G-force sensor (for
    • Loopi

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/367

    Hosts: Fr. Robert Ballecer, SJ and Patrick Delahanty

    Sponsors:

    • Ring.com/KNOWHOW
    • ITPro.TV/knowhow - use the code KNOWHOW30

    KH 366: Cable Management (Burke in a Box!) - Practical products for organizing your tangle of cables. Jan 25, 2018
    Show notes

    Are you tired of the rat's nest of cables under, over and through your desk, nightstand, and counter? Well so are we! In this cableriffic episode of Know How, Padre & Megan Morrone show you some practical products for organizing your tangle of cables... Then we show you how Burke would handle it! Add in some of Megan's favorite speakers from CES 2018, and you've got a fun-for-the-whole-family episode of Know How! (And Burke in a Box)

    Megan's Cable Cubby hole!

    • BEFORE IMAGE
    • Pre-Fab from Amazon. G.U.S Brand
    • The Burke Box made from a Desk Organizer
    • Row of Binder Clips
    • USB Wall Outlet
    • Portable Chargers Galore

    Padre's Cable Managment Mess!

    First, get yourself some braided cables!

    (Fancer) 10-pack of 3' USB-C Cables

    • 3 feet
    • Nylon Braided

    (Unisame) 6-pack of 6' USB-C Cables

    • 6 feet
    • Nylon Braided


    You're also going to need a good charger

    Anker Premium 60W Wall Charger

    • 5 Ports (4 x USB, 1 x USB-C)
    • Can deliver 60W

    Anker 60W 10-port USB Wall Charger

    • 10 Ports
    • 60 Watts


    The KH CabMan!

    1. Anker Premium 60W Wall Charger
    2. M3 Hex Nut Set (Need 4x28mm Screws, 4xNuts, 2x12mm Screws
    3. STL Files can be found at the link below:
      • https://www.dropbox.com/s/djl147nxobplerm/KH366_CabMan.zip?dl=0

    Here's the Tinkercad page so you can edit it yourself!
    https://www.tinkercad.com/things/6611SapRUyD-cabmanv3/editv2

    Some Stuff from CES

    Dumb Speakers from x-mini because sometimes you don't want your Bluetooth speaker to listen to your living room.

    X-Mini Supa

    • Oldschool design with one button.
    • Pair with your phone or use an Aux cable or the MicroSD card reader in the back.
    • 10W speakers.
    • pre-set EQ (on the back)
      • Pros - Sound, Design
      • Cons - Weight, a little hard to adjust the volume.

    X-Mini Infiniti

    • Great sound for different places in your living room, at a price.
    • Four speakers and a sub-woofer.
    • 360 degree sound.
    • If you like the design of the Amazon Echo, you'll like this.
    • X-Mini announced several new products at CES that will come out in June.
    • X-mini INFINITI S will offer 3D surround sound and a removable leather carry strap
    • X-mini EVOLVE 2 is the second-generation wireless hybrid speaker headphones with aptX technology for improved audio and video synchronization over Bluetooth
    • Waterproof speakers

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/366

    Hosts: Fr. Robert Ballecer, SJ and Megan Morrone


    KH 365: MultiRotor 101 - Part 2 - Prop balancing, InSpectre, and the Nebula Capsule projector. Jan 18, 2018
    Show notes

    Want an easy-to-use tool to see how vulnerable you are to Meltdown and Spectre? Tired of "Jello" videos from your drone? Feel like building the 2018 Alien-X? Need a soda-can sized, Android-powered pico projector will full-size features? -- Padre and Jason have the answer to all of these questions on this flu-ridden episode of "Know How"!

    InSpectre

    • Written in Assembly by Steve Gibson
    • Only 125k (would have been much less except he had to include a picture to make it a legit Win10 app)
    • NO INSTALLATION (Runs directly from the executable)
    • Will examine your vulnerability to both Meltdown and Spectre
    • MAY cause false positives with AV suites b/c it allows you to enable/disable protection (malware behavior)

    Prop Balancing
    Unbalanced props are the #1 reason for "jello" video.

    • They can also cause premature wear on the multi-rotor's motors and frame
    • Not to mention that the excessive vibration can cause innacuracies in the FC's sensors

    Spinning at a few thousand times per second can turn even a small imbalance into a major vibration

    So what we need to do is to balance the prop so that weight is as equally spread around the blades (and hub) as possible

    Tools and Materials:

    1. A prop balancer
      • The Du-Bro 499 Tru-Spin Prop Balancer
    2. Level
      • Plastic Bubble Ruler
    3. Tape or Sandpaper

    Procedure:

    1. Assemble the Prop Balancer
    2. Place the prop balancer on a level surface, then level the prop balancer with your bubble ruler.
    3. Mount the prop on the beam, making sure that it's snug in the holder. Turning the prop should turn the beam and vice-versa. -- If the prop isn't properly secured, it will wobble, which will invalidate the balancing.
    4. Place the beam between the arms of the balancer, making sure that it freely turns.
    5. Spin the prop/beam assembly and watch for wobbles. If it wobbles, the prop isn't properly secured.
    6. Set the prop so that both blades are equal distances from the table surface, then release.
      • The heavier side of the prop will fall.
    7. Add tape to the lighter blade, or sand the heavier blade. -- Repeat the test.
      • I prefer to add no more than 2 pieces of tape, always on the underside of the blade.
    8. When you can position the prop in any position and it stays in that position, then it's balanced.
      • It's possible that the HUB is unbalanced. If so, you'll notice that the prop tends to balance with the heavier side of the hub down.
      • If that's the case, you can sand the heavier part of the hub.

    Alien-X

    Procedure:

    1. Power up Craft
    2. Enter "Receiver Test" on Flight Controller
    3. Test all inputs. Reverse channels and/or swap cables as needed
    4. Set Subtrims
    5. Set motor layout to "QuadCopter X"
    6. Calibrate ACC
    7. In "Mode" set "Self-Level" to "AUX"
    8. In "Self-Level" set P to 30 and I to 20
    9. Check motor rotation. Flip pairs as needed
    10. Calibrate ESCs
    11. Install props
    12. Balance Center of Gravity

    Syma X5c
    Exercises

    • Hovering above the ground effect
    • Nose Out
    • Circle of Death
    • Nose In

    Nebula Capsule

    • DLP 100 Lumen (30,000 hours)
    • 854 x 480 Resolution
    • 4 Hours Battery Life
    • 360 Sound (has Bluetooth conenctivity)
    • Can be controlled via a phone)
    • Android 7.1
    • 1 lb
    • Input: Wireless, HDMI, USB, Bluetooth
    • Up to 100" size (Really best around 30")
    • AutoKeystone

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/365

    Hosts: Fr. Robert Ballecer, SJ and Jason Howell

    Sponsor:

    • WordPress.com/knowhow

    KH 364: You Feeling Lucky? - NMAP, RasPi, Nerf, Lazer Tag, IR, and more... Jan 11, 2018
    Show notes

    Fr. Robert Ballecer and Patrick Delahanty show you how to can get information about all the devices on your network, how to turn a Raspberry Pi into a Wi-Fi router, solving filament problems in a 3D printer, and modifying Nerf and Lazer Tag guns.

    Nmap Me

    "I started a search for a software interrogation program to show all the information about the devices on my network. My search returned some results. But my nerve ending stood on high alert as I started reading about the options within some software available. I was turned off by Wireshark and its complexity. (No disrespect intended to the Wireshark community) Decided a better road traveled would be asking; Has anyone had any experience with this type software and the trust level(from usage)?" - Rud Dog

    Fing (Android & iOS)

    • Basic Networking Mapping
    • Can do pings & traceroute

    NMAP (Windows, macOS, Linux)

    • nmap is an open source network tool/port scanner that can scan everything from a large network to a single host
    • It uses raw IP packets to let us know what hosts are available on a network, what ports they have open, what OS they are running and dozens of other parameters available to those who are willing to dive into the network protocols.

    Quick Notes:

    Basic Commands

    1. When you install NMAP on Windows, its going to install "WinPcap" service (Windows Packet Capture) service -- Allow the install and let it run on startup.
    2. I'm running all these commands in a shell that has root
    3. There's a GUI, but I prefer the command line
      1. Discover all IPs in a subnet
        • "nmap -sP x.x.x.x/y" (This is a "ping scan")
        • Where 'x.x.x.x' is the IPv4 address of the subnet you want to scan
        • Where 'y' is the size of your address space
        • For example: If I use "ipconfig /all" to determine that I have an address of 192.168.0.76 and a mask of 255.255.255.0
        • I know my subnet is 192.168.0.0
        • My subnet size is /24
        • so I would use the command "nmap -sP 192.168.0.0/24"
        • You can also use wildcards and ranges (Ex: "nmap 192.168.1.1-50" or "nmap 192.168.1.*")
        • This tells nmap to send a icmp echo request to ports 443, and 80 to all addresses within the specified subnet.
        • This only gives us a list of devices that respond to that request
        • NOTE: Just because a device doesn't respond, that doesn't mean it's not there.
      2. Identify Hostnames
        • "nmap -sL x.x.x.x/y"
        • This will send a packet to all the hosts in the range and return their reported network names
      3. Identify the Operating System
        • "nmap -O x.x.x.x"
        • This will attempt to identify the OS of the host
      4. Scanning for Open Ports on a specific host
        • "nmap x.x.x.x"
        • This will look at a specific host and tell you what ports are open on that host
      5. Show Host Interface and Routes
        • "nmap --iflist"
      6. Verbose!
        • Add "-v" to find out what's happening
      7. Saving your scan to a text file
        • "nmap 'whatever you choose to do' > output.txt

    RasPi WiFi Router

    "I've made a recent post about using a raspberry pi as a tor box and I figured that I don't need the tor part. So does anyone know how to turn a raspberry pi into a WiFi router on raspbian. Any support will be great!!" - Michael

    Turning a Raspberry Pi into a Wireless AP

    1. Image Raspbian onto your SD card
    2. Expand the volume
      • Open Terminal
      • "sudo raspi-config"
      • Select option 7
      • Select A1
    3. Change the default password
      • Select option 1
      • RasPi will reboot
    4. Turn your RasPi into an Access Point
      • A GIT user by

    Fil

    These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/364

    Hosts: Fr. Robert Ballecer, SJ and Patrick Delahanty

    Sponsors:

    • thetrackr.com/knowhow
    • eero.com code KNOWHOW

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