GMH 055 DIY Portable, Battery-Powered, 1-37 volt Power Supply

This DIY project takes an unused tobacco tin with a handful of parts and turns it into battery powered, rechargeable, 1v to 37v adjustable power supply. The center of the project is an XL6009 Buck/Boost converter. By swapping out the 10K trimmer pot on the board with a full-size Helipot and precision adjusting knob it’s possible to dial in the precise voltage needed. The LED displays both voltage in red and amperage in blue. The various outputs include a full sized USB, 2.1mm, and banana jacks. The project case was wrapped in Carbon Fiber Vinyl to give the power supply a much more modern look.

XL6009 Buck/Boost Converter https://www.aliexpress.com/item/XL600… $1.60

10K Precision Pot with fine adjustment locking knob https://www.aliexpress.com/item/1Pc-1… $2.46

Deja Vu Tobacco tin, Electronics Goldmine $2.49 http://www.goldmine-elec-products.com/prodinfo.asp?number=G20664

DPDT Toggle switch https://www.amazon.com/gp/product/B00… $0.69

USB A Panel mount jack https://www.amazon.com/gp/product/B00… $5.95

2.1mm Power Jacks https://www.aliexpress.com/item/UXCEL… $0.32

2 Series 18650 charging and protection module https://www.aliexpress.com/item/2S-8-… $1.39

18650 Battery Holder https://www.aliexpress.com/item/5-Pcs… $0.29

Digital Volt / AMp meter, 100 volts 10 amps https://www.aliexpress.com/item/High-… $1.90

18650 Battery 3000ma https://www.amazon.com/gp/product/B01… $4.20

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button.
Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology.

Do a Geek a favor and SUBSCRIBE to my YouTube channel. I would really appreciate it.

Now… go build something… go code something

GMH 054 Makers Faire Detroit, Michigan 2017, Videos and Pictures

Makers Faire Detriot Michigan, USA 2017. Video and photos. We got robots, flame breathing dragons, cosplay, maker spaces, gargoyles and the Oscar Meyer wiener mobile.

My first road trip with my new camera that I still haven’t mastered yet. I apologize for the video and photos which are a little shaky, out of focus, poorly lit and I need to work at this 😉

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button.  Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology.

Do a Geek a favor and SUBSCRIBE to my YouTube channel. I would really appreciate it.

Now… go build something… go code something

 

GMH 053 Project Build a better Arduino blink sketch, Hello World, Ham style

Hello from KD8VON. The standard Arduino blink sketch used to confirm your Arduino board is working is just too boring. Being an Amateur Radio Geek I wrote this sketch to blink hello world out in Morse code.

Who knows Morse code? Some amateur radio operator, some pilots and a few Geeks like me.

This video and sketch are dedicated to Harvey Ernst who introduced me to Ham radio and electronics back when I was 13. Thank you.

—– Links —-

GitHub link to the HelloWorld Arduino sketch
https://github.com/GeekMustHave/HelloWorld

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button.  Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology.

Do a Geek a favor and subscribe to my YouTube channel. I would really appreciate it.

Now… go build something… go code something

 

GMH 052 Project Build Keep your Corp PC awake aka ImF15

Keep that corporate PC from going to sleep after inactivity. This video is a beginners introduction to the Arduino IDE,. ATTiny85, and the special sketch named (ImF15) that presses the F15 once a minute to keep your PC awake.

Make the ATtiny look like a standard type keyboard by using the proper VID/PID combination.

Depending on your skill level you can skip to
5:30 – Add Attiny to Arduino IDE
11:50 – The ImF15 sketch code.

Beware of the clones. Some fake ATTiny’s will cause issues on some systems.

——— LINKS ———-

Caffeine software (Zhorn) donation based
http://www.zhornsoftware.co.uk/caffeine/

ATtiny board manager JSON
http://digistump.com/package_digistump_index.json

DigiSpark/Arduino drivers and GitHub code library
https://github.com/digistumpArdunio/release

GitHub location for ImF15 sketch
https://github.com/GeekMustHave/ImF15

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button.

Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology.

Do a Geek a favor and subscribe to my YouTube channel. I would really appreciate it.

Now… go build something.

GMH 051 Project Build DIY Overhead Camera Rig – “Natalya”

Project build of a DIY overhead camera rig to replace the first one I made from PVC pipe. Video of the first overhead rig called “Charlotte” is at https://www.youtube.com/watch?v=YVlhEDTJ7Zk&t=512s. The new one is made from cast iron pipe and mounted directly to the table. The stronger sturdier one is called “Natalya”

Video also has some of the lessons learned from the use of PVC pipe and admitting failure so those lessons can be appreciated.

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button.
Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology.

Do a Geek a favor and subscribe to my YouTube channel. I would really appreciate it.

Now… go build something…

 

GMH 050 Video Blog Sanity Check after 50 videos

After a few weeks to think about the channel I decided to do a video blog to outline what the future for this channel is. After 50 videos it’s a sanity check on some of my initial thoughts on starting a channel

GMH 049 Deconstruction Acer6920 Laptop

Deconstruction of an Acer 6920 laptop for the display and whatever other goodies it may have. This was the Geek’s Linux test bed notebook for many years. It was getting a little old in the tooth. Time to salvage whatever I could.

Found some cool little speakers.

I hope you enjoy this video and if you liked it or my escapades then click on that LIKE button.
Do a Geek a favor and subscribe to my YouTube channel. I would really appreciate it.

Any questions or feedback is greatly appreciated.
I have a companion blog https://GeekMustHave.com where I preach technology.

Now… go build something… remember measure twice

GMH 047 Postbag Black Decker Gryo Screwdriver

Glowing Luminous cartoon pattern fidget spinner Hand Spinner For Autism and ADHD Increase Focu Keep Hands Busy $1.50
https://www.aliexpress.com/item/White-Black-Tri-Spinner-Fidget-Toy-Plastic-EDC-Hand-Spinner-For-Autism-and-ADHD/32790549903.html

Tri-Spinner Fidgets Toy spinner hand EDC Sensory Fidget Spinner For Autism and ADHD Kids/Adult Funny Anti Stress Toys MBF68 $8.75
https://www.aliexpress.com/item/White-Black-Tri-Spinner-Fidget-Toy-Fidgets-Hand-Spinner-For-Autism-and-ADHD-One-hand-spiral/32792140521.html?spm=2114.13010608.0.0.h9mSzj

Portable Black Straight Bend Anti-static Plastic Tweezer Heat Resistant Repair Tool Free Shipping $1.55
https://www.aliexpress.com/item/Portable-Black-Straight-Bend-Anti-static-Plastic-Tweezer-Heat-Resistant-Repair-Tool-Free-Shipping/32626897076.html

10x 22mm wood cutting disc dremel rotary tool circular saw blade dremel cutting tools for woodworking tool Dremel accessories $2.19
https://www.aliexpress.com/item/10x-22mm-wood-cutting-disc-dremel-rotary-tool-circular-saw-blade-dremel-cutting-tools-for-woodworking/32585891471.html

HSS High-speed-steel Circular Wood Cutting Cutoff Saw Blade Wheel Discs Mandrel for Dremel Rotary Power Tools w/ 1 Mandrel 5PCS $3.95
https://www.aliexpress.com/item/HSS-High-speed-steel-Circular-Wood-Cutting-Cutoff-Saw-Blade-Wheel-Discs-Mandrel-for-Dremel-Rotary/32672300000.html

Black & Decker BDCS40G 4-Volt MAX Gyro Screwdriver $45
https://www.amazon.com/gp/product/B008R5259Y/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button.

Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology.

Do a Geek a favor and subscribe to my YouTube channel. I would really appreciate it.

Now… go build something… remember measure twice

GMH 046 Postbag HDMIController Raspberry PI Zero W and case

Adafruit Rasberry Pi Zero W
https://www.adafruit.com/products/3400

Pibow Zero Case for Raspberry Pi Zero v1.3
https://www.adafruit.com/products/3005

Raspberry Pi Zero v1.3 Camera Cable
https://www.adafruit.com/products/3157

2mm Pitch 25-Pin Female Socket Headers – Pack of 5
https://www.adafruit.com/products/2672

VSDISPLAY HDMI+VGA+2AV LCD Controller Board work for 15.4″ 17″ 1440×900 lcd panel
https://www.amazon.com/gp/product/B01NGZPN18/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Samsung 32GB EVO Plus Class 10 Micro SDHC with Adapter 80mb/s (MB-MC32DA/AM)
https://www.amazon.com/gp/product/B00WR4IJBE/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

GMH 045 Postbag ESP8266 Relay, DiceKit, PiZero W

ESP8266 5V WiFi relay module Things smart home remote control switch phone, 400m APP $4.25
Vendor: e_goto Processor store
https://www.aliexpress.com/item/ESP8266-5V-WiFi-relay-module-Things-smart-home-remote-control-switch-phone-APP/32735832428.html

1.Onboard Module:ESP8266 wifi module;in AP mode it can connect with 5 Clients at the same time
2.Operating Way:cellphone carried on wifi module;cellphone and wifi module carried on the same router,and use APP to control relay
3.Transmission Distance:400m (max)
4.Relay:5V,10A/250V AC 10A/30V DC
5.Baud Rate:9600,8,1,0,0
6.Features:diode effusion protection;short response time

Onboard ESP8266 11 WIFI module has three types of work: STA (client), AP (heat
Point) and STfA + AP (client + hot), according to the work of the module to select the corresponding WIFI model
Head to work mode.
Before using the need to use serial debugging software and USB to TTL module to send serial port instructions on the WIFI module into
Line configuration (after the completion of the configuration do not power, because the WIFI module after some of the parameters can not be saved)
Mobile phone and WIFI module to establish a network connection can use the mobile phone APP control relay.

Electronic Dice NE555 CD4017 DIY Kit 5mm Red LEDs 4.5-5V ICSK057A Electronic Fun Kit $2.19
Vendor: e_goto Processor store (IC Station) circuit
https://www.aliexpress.com/item/Electronic-Dice-NE555-CD4017-DIY-Kit-5mm-Red-LEDs-4-5-5V-ICSK057A-Electronic-Fun-Kit/32597781923.html

ICSK057A Precise Electronic Dice DIY Kit 7pcs 5mm Red LEDs
Electronic dice kit is based on the NE555 oscillator circuit and circuit CD4017 counter display kit.

1. Kit parameters:
Supply voltage: 4.5-5V
Dimensions: 74 * 35mm

2. Function:
When a power-up, 7 LED will randomly display a number of points, players press the switch S1,7 all lit LED only after about 7 seconds LED light starts blinking, until finally showed stable points. Throughout the end of the first “crap” process.

3. Circuit:
Circuit mainly by the pulse generator and a decade counter circuit. Pulse generator and external elements by NE555 multivibrator, when you press the button S1 when Q1 turns on, the output pulse NE555 3 feet, then five turns the output CD4017 output high, resistors and transistors by different combination, can drive seven LED light to indicate the number of points 1-6 points.

uxcell Waterproof Plastic Electric Project Case Junction Box (2.3×1.4-Inches, 5pcs) $8.07
https://www.amazon.com/gp/product/B00O9Y633G/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Adafruit Raspberry Pi Zero Case $4.75
https://www.adafruit.com/product/3252

This is a basic, classic Pi Zero enclosure with a black base and a clear top. The case is as minimal as it gets, coming in just two pieces of polycarbonate that snap snugly together. This case will keep your Pi Zero safe and secure while also looking super sleek. You can use all of the connectors on the edges of the Pi: mini HDMI, microSD slot, microUSB power, and microUSB port. There’s also a cut out to allow a 2×20-pin header to be soldered onto the Pi Zero.

The enclosure was designed by Mike Doell – just like our elegant, beautiful, and functional Pi Case for Raspberry Pi Model B. Made of ultra-durable, super-glossy polycarbonate, it is both good looking and tough enough to toss into your pocket, bookbag, or toolbox. It has slim openings for all your cables, an easy-to-access slot for your Micro SD card, slots for your Pi Camera, and a space for your GPIO cable to extend out from the Pi.

The Pi sits nicely in the base, latching to the corner pegs, and the lid fits snugly on top. If you want to break-out your Pi you can simply snap off the GPIO slot and add pHATs, Bonnets, GPIO cables and other accessories with ease.

Raspberry Pi Zero W $10
https://www.adafruit.com/product/3400

If you didn’t think that the Raspberry Pi Zero could possibly get any better, then boy do we have a pleasant surprise for you! The new Raspberry Pi Zero W offers all the benefits of the Pi Zero v1.3, but with one big difference – built-in WiFi!

More specifically, this giant upgrade is the addition of a BCM43143 WiFi chip BUILT-IN to your Raspberry Pi Zero – just like the Pi 3! No more pesky WiFi adapters – this Pi is WiFi ready. There’s also Bluetooth Low Energy (BLE) on board making the Pi an excellent IoT solution (BLE support is still in the works, software-wise).

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button.

Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology.

Do a Geek a favor and subscribe to my YouTube channel. I would really appreciate it.

Now… go build something… remember measure twice