Posts with «ir» label

The Smartest Smart Watch is the One You Make Yourself

If you’re building a smart watch these days (yawn!), you’ve got to have some special sauce to impress the jaded Hackaday community. [Dominic]’s NeoPixel SmartWatch delivers, with his own take on what’s important to have on your wrist, and just as importantly, what isn’t.

There’s no fancy screen. Instead, the watch gets by with a ring of NeoPixels for all its notification needs. But notification is what it does right. It tells [Dominic] when he’s got an incoming call of course, but also has different flashing color modes for SMS, Snapchat, and e-mail. Oh yeah, and it tells time and even has a flashlight mode. Great functionality for a minimalistic display.

But that’s not all! It’s also got a light sensor that works from the UV all the way down to IR. At the moment, it’s being used to automatically adjust the LED brightness and to display current UV levels. (We imagine turning this into a sunburn alarm mode.) Also planned is a TV-B-Gone style IR transmitter.

The hardware is the tough part of this build, and [Dominic] ended up using a custom PCB to help in cramming so many off-the-shelf modules into a tiny space. Making it look good is icing on the cake.

Thanks [Marcello] for the tip!


Filed under: clock hacks
Hack a Day 13 Mar 09:01
arduino  clock  clock hacks  ir  neopixel  uv  watch  ws2812  

Colorful, Touch-Sensitive Light Table is Ready for Gaming

It’s an ambitious build for sure — you don’t start with $500 worth of wood if you don’t intend for the finished product to dazzle. And this 240-pixel touch-sensitive light box coffee table does indeed dazzle.

Sometimes when we see such builds as these, fit and finish take a back seat to function. [dasdingo89] bucks that trend with a nicely detailed build, starting with the choice of zebrawood for the table frame. The bold grain and the frosted glass top make for a handsome table, but what lurks beneath the glass is pretty special too. The 240 WS2812 modules live on custom PCBs, each thoughtfully provided with connectors for easy service. There’s also an IR transmitter-receiver pair on each board to detect when something is placed over the pixel. The pixel boards are connected to custom-built shift register boards for the touch sensors, and an Arduino with Bluetooth runs the whole thing. Right now the table just flashes and responds to hand gestures, but you can easily see this forming the basis of a beautiful Tetris or Pong table.

This build reminds us a little of this pressure-sensitive light floor we featured recently, which also has some gaming possibilities. Maybe [dasdingo89] and  [creed_bratton_] should compare notes and see who can come up with the best games for their platform.

[via r/DIY and a tip from emptycanister]


Filed under: Arduino Hacks, led hacks

AV Remote Control Teams Arduino with – Visual Basic?

A large installed base of powered speakers from a defunct manufacturer and a dwindling supply of working remote controls. Sounds like nightmare fuel for an AV professional – unless you take matters into your own hands and replace the IR remotes with an Arduino and custom software.

From the sound of it, [Steve]’s crew was working on AV gear for a corporate conference room – powered speakers and an LCD projector. It was the speakers that were giving them trouble, or rather the easily broken or lost remotes. Before the last one gave up the ghost, [Steve] captured the IR codes for each button using an Arduino and the IRRemote library. With codes in hand, it was pretty straightforward to get the Nano to send them with an IR LED. But what makes this project unique is that the custom GUI that controls the Arduino was written in the language that everyone loves to hate, Visual Basic. It’s a dirty little secret that lots of corporate shops still depend on VB, and it’s good to see a little love for the much-maligned language for a change. Plus it got the job done.

Want to dive deeper into IR? Maybe this primer on cloning IR remotes with an Arduino will help. And for another project where VB shines, check out this voice controlled RGB LED lamp.


Filed under: Arduino Hacks
Hack a Day 15 May 18:00

Slap my zombie hand for internet fame!

Halloween time is a great moment to explore nice interactive projects and get inspired for installations for other selfie occasions. To spice up the office Donnie Plumly, a creative technologist, decided to make and share with us a molded zombie arm that takes pictures and post them to Twitter.

He used a silicone arm (molded on his own hand ), a custom steel mount to clip to an office partition, and a vibration sensor hooked up to an Arduino Uno. Once the arm is slapped a photo will be taken using an IR Led and passed to the Eye-Fi card in the camera.

The photo is then saved into a Dropbox folder and, using If This Then That (IFTTT), posted to Twitter on the account @ZombieSelfie.

Donnie created also a very useful tutorial  on Instructable to make it yourself!

Arduino And IR Remote Turn Off Raspberry Pi

With all of the cool features on the Raspberry Pi, it is somewhat notable that it lacks a power button. In a simple setup, the only way to cut power to the tiny computer is to physically remove the power cord. [Dalton63841] found that this was below his wife’s tolerance level for electronics, and built a simple remote control for his Raspberry Pi.

[Dalton63841] started this project by trying to use the UART TX pin, but this turned out to be a dead-end. He decided instead to use an Arduino to monitor the 3.3V power rail on the Pi. When the Pi is shut down in software, the Arduino can sense that the Pi isn’t on any more and disconnect the power. The remote control is used to turn the Pi on. The Arduino reads the IR code from a remote and simply powers up the Pi. This is a very simple and elegant solution that requires absolutely no software to be installed on the Raspberry Pi.

We know that this isn’t the most technically complex project we’ve ever featured, but it is a good beginner project for anyone just getting started with a Pi, Arduino, or using IR. Plus, this could be the perfect thing to pair up with a battery-backup Raspberry Pi shutdown device that allows it to power itself down in a controlled way when a power outage is sensed.


Filed under: Arduino Hacks

Control Anything with an Apple Remote

If you’re like us, you probably have more than one Apple Remote kicking around in a parts drawer, and if you’re even more like us, you’re probably really annoyed at Apple’s tendency to use proprietary hardware and software at every turn (lightning connector, anyone?). But there’s hope for the Apple Remote now: [Sourcery] has completed a project that allows an Apple Remote to control anything you wish.

The idea is fairly straightforward: A device interprets the IR signals from an Apple Remote, and then outputs another IR signal that can do something useful on a non-Apple product. [Sourcery] uses an Arduino to do the IR translation, along with a set of IR emitters and detectors, and now the Apple Remote can control anything, from stereos to TVs to anything you can imagine. It also doesn’t remove the Apple Remote’s capability to control Apple products, in case you need yours to do that as well.

[Sourcery] notes that sometimes working with RAW IR signals can be a little difficult, but the information on their project and in their 25-minute video discusses how to deal with that, so make sure to check that out after the break. Don’t have an Apple Remote? You can do a similar thing with a PS3 controller.


Filed under: wireless hacks

A Remote for CHDK Cameras Made Possible with Arduino

[AlxDroidDev] built himself a nice remote control box for CHDK-enabled cameras. If you haven’t heard of CHDK, it’s a pretty cool software modification for some Canon cameras. CHDK adds many new features to inexpensive cameras. In this case, [AlxDroidDev] is using a feature that allows the camera shutter to be activated via USB. CHDK can be run from the SD card, so no permanent modifications need to be made to the camera.

[AlxDroidDev’s] device runs off of an ATMega328p with Arduino. It operates from a 9V battery. The circuit contains an infrared receiver and also a Bluetooth module. This allows [AlxDroidDev] to control his camera using either method. The device interfaces to the camera using a standard USB connector and cable. It contains three LEDs, red, green, and blue. Each one indicates the status of a different function.

The Arduino uses Ken Shirrif’s IR Remote library to handle the infrared remote control functions. SoftwareSerial is used to connect to the Bluetooth module. The Arduino code has built-in functionality for both Canon and Nikon infrared remote controls. To control the camera via Bluetooth, [AlxDroidDev] built a custom Android application. The app can not only control the camera’s shutter, but it can also control the level of zoom.


Filed under: Arduino Hacks

Make a 3D printed LEGO-compatible Arduino Micro casing

Here we are after winter break with a new tutorial on 3d printing with Arduino Materia 101. The 5-step tutorial allows you to design a Lego-compatible case for the Arduino Micro to be used together with the power function IR-receiver mentioned in this other Tutorial.

During the lesson you’ll learn also how to make the Lego-compatible pieces accurately and easily with FreeCAD without taking all the measurements!

Follow the steps and print yours >>

Check the previous tutorials on 3d printing with Material 101

Interested in getting in touch and showing your experiments? Join Kristoffer on the Arduino forum dedicated to Materia 101 and give us your feedback.

Recently Arduino user Botberg implemented an auto-levelling bed sensor  to be  sure that the placement of the first extrusion layer is placed well and increasing the printer successes!

Smart Remote Control Doubles as Super Simple IR Sniffer

Want to sniff a remote control or other IR device's control codes? The Smart Remote Control will make quick work of that, combining an Arduino Yún with a simple solderless breadboard circuit.

Read more on MAKE

New Project: Smart Remote Control

Combine the Arduino Yún with a simple solderless breadboard circuit to create a homemade 'universal' remote control that you can navigate with your laptop or smartphone.

Read more on MAKE