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Archive for the ‘mp3 player’ Category

Music, food, and coding style have one thing in common: we all have our own preferences. On the other hand, there are arguably more people on this planet than there are varieties in any one of those categories, so we rarely fail to find like-minded folks sharing at least some of our taste. Well, in case your idea of a good time is calling a service hotline for some exquisite tunes, [Fuzzy Wobble] and his hold music jukebox, appropriately built into a telephone, is just your guy.

Built around an Arduino with an Adafruit Music Maker shield, [Fuzzy Wobble] uses the telephone’s keypad as input for selecting one of the predefined songs to play, and replaced the phone’s bell with a little speaker to turn it into a jukebox. For a more genuine experience, the audio is of course also routed to the handset, although the true hold music connoisseur might feel disappointed about the wide frequency range and lack of distortion the MP3s used in his example provide. Jokes aside, projects like these are a great reminder that often times, the journey really is the reward, and the end result doesn’t necessarily have to make sense for anyone to enjoy what you’re doing.

As these old-fashioned phones gradually disappear from our lives, and even the whole concept of landline telephony is virtually extinct in some parts of the world already, we can expect to see more and more new purposes for them. Case in point, this scavenger hunt puzzle solving device, or the rotary phone turned virtual assistant.

In the world of ham radio, a “Fox Hunt” is a game where participants are tasked with finding a hidden transmitter through direction finding. Naturally, the game is more challenging when you’re on the hunt for something small and obscure, so the ideal candidate is a small automated beacon that can be tucked away someplace inconspicuous. Of course, cheap is also preferable so you don’t go broke trying to put a game together.

As you might expect, there’s no shortage of kits and turn-key transmitters that you can buy, but [WhisleyTangoHotel] wanted to come up with something that could be put together cheaply and easily from hardware the average ham or hacker might already have laying around. The end result is a very capable “fox” that can be built in just a few minutes at a surprisingly low cost. He cautions that you’ll need a ham license to legally use this gadget, but we imagine most people familiar with this particular pastime will already have the necessary credentials.

The heart of this build is one of the fairly capable, but perhaps more importantly, incredibly cheap Baofeng handheld radios. These little gadgets are likely familiar to the average Hackaday reader, as we discussed their dubious legal status not so long ago. At the moment they are still readily available though, so if you need a second (or third…), you might want to pull the trigger sooner rather than later.

At any rate, in the setup that [WhisleyTangoHotel] has outlined, the Baofeng radio is connected up to an MP3 player which is loaded up with a recording of your message and FCC callsign that plays in a loop. An Arduino and a relay module are then used to key the transmitter automatically by grounding out the microphone connector. As it so happens, the lanyard mount on the Baofeng is a convenient ground point and allows you to hook the whole thing up quickly with alligator clips.

If you’re looking for something a little more compact, we’ve previously covered a very nice wearable transmitter which can be used for fox hunting. We’ve even seen a gutted FRS radio stuck into a rocket if you want to take your hunt to the next level.

(altro…)

It’s about time we had another awesome clock post around here. [Mattaw] has liked binary clocks since he was 0 and decided to make one in stunning fashion by using driftwood, nature’s drillable, fillable enclosure.

That beautiful wiring job on the RGB LEDs was done in 18g copper. To keep the LEDs aligned during soldering, he drilled a a grid of holes just deep enough to hold ’em face down. There’s an IR remote to set the time, the color, and choice of alarm file, which is currently set to modem_sound.mp3.

Under the wood, there are a pair of Arduino Nanos, an mp3 decoder board, and an RTC module. Why two Nanos, you ask? Well, the IR interrupts kept, uh, interrupting the LED timing. The remote feature was non-negotiable, so [mattaw] dedicated one Nano to receive remote commands, which it streams serially to the other. Here’s another nice touch: there’s an LDR in one of the nooks or crannies that monitors ambient light so the LEDs are never too bright. Don’t wait another second to check it out—we’ve got 10 videos of it after the break.

Believe it or not, this isn’t the first binary clock we’ve seen.  This honey of a clock uses RGB LEDs to tell the time analog style.

[Ash] built Moo-Bot, a robot cow scarecrow to enter the competition at a local scarecrow festival. We’re not sure if Moo-bot will win the competition, but it sure is a winning hack for us. [Ash]’s blog is peppered with delightful prose and tons of pictures, making this an easy to build project for anyone with access to basic carpentry and electronics tools. One of the festival’s theme was “Out of this World” for space and sci-fi scarecrows. When [Ash] heard his 3-year old son sing “hey diddle diddle, the cat and the fiddle…”, he immediately thought of building a cow jumping over the moon scarecrow. And since he had not seen any interactive scarecrows at earlier festivals, he decided to give his jumping cow a lively character.

Construction of the Moo-Bot is broken up in to three parts. The skeleton is built from lumber slabs and planks. The insides are then gutted with all of the electronics. Finally, the whole cow is skinned using sheet metal and finished off with greebles to add detailing such as ears, legs, spots and nostrils. And since it is installed in the open, its skin also doubles up to help Moo-bot stay dry on the insides when it rains. To make Moo-Bot easy to transport from barn to launchpad, it’s broken up in to three modules — the body, the head and the mounting post with the moon.

Moo-Bot has an Arduino brain which wakes up when the push button on its mouth is pressed. Its two OLED screen eyes open up, and the MP3 player sends bovine sounding audio clips to a large sound box. The Arduino also triggers some lights around the Moon. Juice for running the whole show comes from a bank of eight, large type “D” cells wired to provide 6 V — enough to keep Moo-Bot fed for at least a couple of months.

Check out the video after the break to hear Moo-bot tell some cow jokes – it’s pretty funny. We’re rooting for it to win the competition — Go Moo-bot.

If you’re hungry for more scarecrows, this isn’t the first we’ve seen.


Filed under: Arduino Hacks, robots hacks
Gen
16

MBox: A Child’s MP3 Player

arduino hacks, audio amplifier, hörbert, mp3 player, musical hacks Commenti disabilitati su MBox: A Child’s MP3 Player 

mobx

For young children, music is a wonderful and exciting thing — but do you really want them playing with your phone, or worse yet, an iPod? [Arons] decided to make the MBox, an Arduino powered MP3 player.

He was inspired by hörbert, a very similar wooden MP3 player for children. Apparently it’s a great product, but it also costs 239€. We don’t blame him for wanting to make his own.

The MBox follows the same exterior design as hörbert — though we must admit, he could have spiced it up a bit! It uses an Arduino Uno at its core with a Freaduino MP3 music shield, capable of playing all the typical formats like MP3, MIDI, WAV, and even Ogg Vorbis. To amplify the sound he’s using a Mono Audio Amp Breakout board from SparkFun which drives an 8Ω loudspeaker. A mini USB power brick provides the juice, and a 12-digit keypad provides the ability to select music — each number plays from a different directory on the SD card.

[Arons'] daughter loves it, and he probably only spent a fifth of what the real hörbert costs!

[Thanks for the tip Renzo!]


Filed under: Arduino Hacks, musical hacks
Nov
15

Arduino Mp3 Player – Arduino JukeBox

IC, jukebox, mp3, mp3 player, music, vs1002d, vs1003, vs1053 Commenti disabilitati su Arduino Mp3 Player – Arduino JukeBox 

A full Arduino MP3 player using a SD card and a MP3 module based on a chip from VLSI (VS1002d, VS1003 VS1053). The player includes a small amplifier and two speakers, making it a small Jukebox in the age of Ipods. The project includes a small library for the management of the MP3 and the SD chip. A Funny Arduino project ..

via [arduino-guay]



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