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Kevin Gulling

Game Development, VR, and more

Category Archives: Computers

Arduino Nano Voice Activated (sound sensor) LED Halloween / DJ Mask

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Voice Activated LED Mask

DIY LED Mask Youtube

Be the life of the party this Halloween with a voice (and music if it’s loud!) activated LED biohazard mask. Everybody knows that a genius conceptual Halloween costume will make you the star of the party. Sure you could be one of the millions of people to wear a caricature Trump mask this year, or you can be original with this DIY project!

Materials required:

Steps:

  1. Take apart the biohazard mask filters and empty out the contents
  2. Wire LED 1 and 9v battery into one of the filters, pulling wires through the respirator air passage ways. If you make the wires the correct length, you can easily tuck them beneath the rubbery plastic liner
  3. Solder your nano and other components to the perf board (see circuit diagram below). I left the KY-038 sound module free from the board so that I could easily position it and make adjustments to the sensitivity via the on-board potentiometer.
  4. Connect the wiring from the 9v power supply and the LED.
  5. (Optional) Slap a biohazard sticker on the front, and voila!

Check out the video above to get a look at how I did it!

Here is the circuit:

(simply put your desired amount of LED’s in parallel, I used one in each filter. Using 2 or more in each filter will drain your battery a bit faster, but might make it a bit brighter)
LED Mask Circuit

Here is the Sketch code:

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Agar.io Strategy Guide, Hints, Tips, Legal Cheats, Hacks

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Agar.io Strategy, Hints, Tips, Cheats and Hacks!

Agar.io is another great online massively multiplayer browser game/app utilizing socket.io. You start out on a large square grid as a cell around 38-45 mass (It seems that sometimes you spawn on top of mass particles, so you can get a little bonus right from the start if you are lucky). There are little hexagonal particles of mass that spawn randomly on the map, and you gain mass by gobbling up these small bits of mass. It’s sort of like Pacman meets Odell lake. You can also gain mass by eating smaller cells, so when you start the game you are on the very bottom of the food chain!

Agar.io Beginners Guide

Objective – In FFA the object is to gain mass until you reach the leaderboard to show off your massiveness! There are also daily missions which give you coins and “DNA” if completed. In Rush mode the object is to be the largest cell when the timer expires.

Viruses – Viruses are the green spiked circles, and spawn at random around the map. A virus can be a safe haven for a cell of smaller mass. For cells larger than the virus, running into a virus will cause the cell to split up into 16 different pieces. This can be a good if you are able to keep all your cells because when you are in 16 parts you can eat viruses, but more commonly this can be your downfall. When nearby cells spot a cell being split by a virus, a frenzy of sorts begins. Cells from all over the map will risk there little cell lives just to try and get a piece of you, often times at their own peril.

Agar.io

Cell bursting on virus – Agar.io

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Rust Skin “Slave Tank Top” T-Shirt Design – Gear for your Slaves

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Slave Tank Top Rust Skin

A tank top for your hard working slaves. Now if your slaves wander too far, your neighbor will know to blow their head off and send ’em on back home.
Rust Skin

slave tank top

slave tank icon

Support this skin by visiting Steam and voting “Yes” and adding it to your favorites it:

Get it on Steam!

“Slaves”, also known as “Workers” in Rust are players that do utilitarian work, such as gathering wood and stone. Using slaves in Rust enables clans to build large bases fast. The concept is simple really, generally it involves finding some players with little experience who are interested in joining up with your team/clan, or just trying to get a decent start in the game without getting killed so easily. Depending on who you slave for you can generally rank up to a normal clan member eventually after hours of hard slaving!

If you play Rust and are interested in working as a slave to help build some of Rusts largest and most badass monuments and buildings, add me on Steam and I’ll give you the details, such as our current server and such. If you are a dedicated and hard worker we will even pay you in skins (which are worth actual money)!

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Funduino Analog Water Sensor for Arduino Test and Review

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Analog Water Sensor Test and Review

The Funduino analog water sensor is an inexpensive, easily obtainable sensor module with many use cases. I purchased mine from the Good-Module Ebay store for just under $1 USD. You can find these modules available from other sellers on Ebay as well with similar prices.

Funduino H20 Sensor

There are a lot of uses for this sensor module. It can be used to detect the presence or absence of water, accurately gauge the water surface level, or you can even accurately gauge the volume of water present by using a volume measurement device such as a measuring cup in conjunction with the analog water sensor module. This makes it the Funduino analog water sensor a versatile component! Be careful not to confuse this module with a digital boolean water sensor which will only return a true or false value rather than an integer.

yt video link - water sensor

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RCWL-0516 Microwave Radar Motion Sensor for Arduino Test and Review

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RCWL-0516 Sensor Test & Review

rcwl-0516

The RCWL-0516 microwave radar motion sensor module is a low cost sensor that has been newly added to ICSTATION inventory. There is quite a lack of information on the module online, at least not that I could find, so I’m compiling what I could find and posting it all here in this article.

Distance Test

video of rcwl-0516

RCWL-O516 Arduino Circuit

rcwl-0516 arduino

RCWL-0516 Arduino Uno Circuit

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Arduino + SPO2 Pulse Oximeter + Unity3D – Teardown Tuesday

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Arduino + SPO2 Pulse Oximeter + Unity3D

After a recent hospital visit, I was given a disposable spo2 sensor to monitor my oxygen saturation and pulse which is standard practice these days. Rather than let the nurse toss my sensor afterwards, I decided to take it home and tinker with it. It would be pretty neat to have my own spo2 monitor at home, never know when it could come in handy! I am especially interested in the applications that it can be applied to in the gaming world, such as fitness gaming, so I created a Unity asset that can handle the readings and graph the results, much like an ECG.

diy pulse oximeter

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12 Days of Arduino Day 12 – Glorious Spambot! – DIY Robot for $50

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spambot day12

Day 12 of 12 Days of Arduino! On the 12th day of Arduino, I present our final project of the series: Glorious Spambot! I printed out some wheels , and fashioned some wheels out of bottle caps, and an axle out of a spray tube, a paperclip and a ballpoint pen. I found the wheel model on Thingiverse. There are a ton of wheels on Thingiverse that will work great, or if you don’t have a 3d printer, I’ve found that plastic bottle caps will do the trick!

Spambot

Watch Spambot on his first official voyage:



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12 Days of Arduino Day 11 – Robot Drive and Controls

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arduino header

Welcome back to Day 11 of 12 Days of Arduino! Today I backtrack a bit and tie up some “loose ends” with the design.
The HC-06 that I am using states that it needs 3.3v on the rx, not 5v as I had it set up yesterday. We’ll want to comply with this to avoid damaging any components. A simple way to go about this is to create a voltage divider using a couple resistors. I use this handy tool that does all the math for you to figure out what resistance resistors are necessary to get our voltage down to 3.3v: Voltage Divider Calculator. I ended up going with a 1k and a 2k resistor to obtain close to 3.3v.

spambot

Pro Tip: You won’t find this in most tutorials or datasheets, the heatsink tab of the TIP120 is directly connected to the Collector.

Because of the heat sink I had connected to both the Tip120’s, when the circuit would close it would also close the circuit to the transistor that was also connected to the heatsink. So unfortunately I had to remove the cool looking heat sink which honestly was probably complete overkill in the first place, more aesthetic than functional, so it’s probably for the best! That being said.

Parts:
-Arduino Uno R3
-Motor
-Fan
-Jumper Wires
-Breadboard
-Spam Can
-2x TIP120 transistors
-HC-05 or HC-06
–3d printed core
-1k resistor
-2k resistor
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12 Days of Arduino Day 10 – Robot Bluetooth Connection

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12 days of arduino day 10

Welcome back to 12 Days of Arduino Day 10. Today we finish the core and connect to a remote computer via bluetooth. Everything has been pretty simple up until this point, so if you are a beginner you might want to watch some tutorials on YouTube and read up on the HC-05 and HC-06 before-hand.



Parts:
-Arduino Uno R3
-Motor
-Fan
-Jumper Wires
-Breadboard
-Spam Can
-2x TIP120 transistors
-HC-05 or HC-06

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12 Days of Arduino Day 9 – Robot Core / Cooling System

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day9 arduino r3 robot core

Day 9 of 12 Days of Arduino! So I couldn’t wait to get our components hooked up to the core, aka the spam can so I jumped ahead of schedule a bit so we can see the robot start to take shape! Don’t worry though, there’s more to this surprise! Make sure you catch Day 10-12, and if you’ve missed it, go back and check out the “Keyduino“.



Parts:
-Arduino Uno R3
-Motor
-Fan
-Jumper Wires
-Breadboard
-Spam Can
-2x TIP120 transistors
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