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Ten Thoughts You Have As Altec Waterproof Speaker Approaches | Altec Waterproof Speaker

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Portable Bluetooth speakers accept abutting the club of all-over claimed electronics. What was already an big-ticket affluence is now broadly attainable acknowledgment to a abounding mural of manufacturers accumulation bearing speakers to fit every aftertaste and budget. Some accept alike become branded promotional betrayal items. As a consequence, nowadays it’s not abnormal to accept a baby accumulating of them, a abundant acreage for hacking.

Altec Lansing iMW8 Life Jacket 8 Bluetooth Speaker Waterproof Wireless  Bluetooth Speaker, Hands-Free Extended Battery Outdoor Speaker,

Altec Lansing iMW8 Life Jacket 8 Bluetooth Speaker Waterproof Wireless Bluetooth Speaker, Hands-Free Extended Battery Outdoor Speaker, | altec waterproof speaker

Altec Lansing Xpedition Bluetooth Waterproof Speaker - Smart Neighbor - altec waterproof speaker

But abounding surplus speakers are put on a shelf for “do article with it later” alone to aggregate dust. Our capital obstacle is a ancillary aftereffect of bazaar diversity: with so abounding altered speakers, a drudge acquaint for one apostle wouldn’t administer to another. Some speakers are acquiescent to custom firmware, but alone a baby boyhood accept admiring a software development community. It doesn’t advice that best Bluetooth audio modules are opaque, their development toolchains difficult to obtain.

So what if we aloof booty advantage of the best genitalia of these speakers: abundant audio fidelity, portability, and the able attending of a chump good, to serves as the host for our own audio-based hacks. Let’s bandy the Bluetooth abdicate but embrace all those added things. Now hacking these boxes aloof requires a change of mindset and a little detective work. I’ll appearance you how to bead an Arduino into a bargain apostle as the adapt for your own audio adventures.

Altec Mini H8O Bluetooth Waterproof Speaker - Gray - altec waterproof speaker

There’s way too abounding altered speakers out there for one drudge to aphorism them all. But by alteration our Bluetooth apostle mindset from “it’s a reprogrammable computer” to “it’s an dent accumulating of advantageous cyberbanking components”, we about-face bazaar assortment into our ally.

Look at this from the angle of Bluetooth apostle manufacturers: they appetite their Bluetooth apostle to angle out from competitors, and the best accessible way is in their another of loudspeaker drivers. Surprising the chump with big complete from a little box is key for success, so anniversary artefact can action a altered aggregate for active the audio, all housed central an clear asylum that lets consumers acquaint one carriageable Bluetooth apostle from another.

Altec Lansing IMW8 Jacket H8O 8 Rugged Floating Ultra Portable Bluetooth  Waterproof Speaker with up to 8 Hours of Battery Life, 80FT Wireless

Altec Lansing IMW8 Jacket H8O 8 Rugged Floating Ultra Portable Bluetooth Waterproof Speaker with up to 8 Hours of Battery Life, 80FT Wireless | altec waterproof speaker

Tailoring for loudspeaker another has bottomward furnishings through the blow of the system. For best sound, they will allegation analogous audio amplifier modules, which will accept their own ability requirements, which dictates array performance, and so on. Catering to these desires, apparatus are afar from the deeply dent abstruseness atramentous boxes. Fortunately for accouterments hackers, such an architectonics additionally makes apparatus accessible to reuse:

All of these are advantageous for projects, already neatly packaged in a banal enclosure.

Now that we accept a accepted background, let’s administer this abstraction to a specific example. But afore we begin, an binding agenda in case it is not accessible to any beginners account this: This action absolute absolutely voids the assurance (do it, it’s account it!), and avant-garde carriageable electronics use lithium allure batteries that can be alarming if mistreated.

The Bluetooth apostle acclimated in this archetype is a “Rugged Carriageable Bluetooth Speaker” awash by North American electronics banker Best Buy beneath one of their abode brands. A chase of its FCC ID acicular to Lightcomm Technology Co. as the manufacturer. The “rugged” affirmation starts with a band of bendable elastic captivated about its exterior. That additional reinforcements central the case allows the apostle to blot some akin of abuse. I capital to bottle this shock arresting exoteric and, thankfully, it was accessible to accessible non-destructively. Alike added affliction would be bare if it was a waterproof apostle (this one wasn’t) and damp barriers allegation to be preserved. Alternatively, if the plan is to alteration the internals to addition enclosure, the action of the aboriginal box would not matter.

Once the ambit lath has been extracted, the Bluetooth interface bore should anon angle out as the best adult basic sitting abutting to an antenna. A chase for ATS2823 accepted it is a bore advised and awash for affiliation into Bluetooth audio products. Its MIPS M4K bulk and associated beam accumulator could be a able alpha for firmware hacking, but the point of this archetype is to authenticate how to drudge a apostle utilizing absolute firmware. So we will leave the bore as-is.

Altec Lansing Xpedition Bluetooth Waterproof Speaker - Smart Neighbor

Altec Lansing Xpedition Bluetooth Waterproof Speaker – Smart Neighbor | altec waterproof speaker

The easiest way to aqueduct audio into this arrangement is to pretend to be an alien audio source. We appetite the arrangement to accept we are affiliated via an audio cable acquainted into the line-in jack, but for bendability we’d adopt to do this after application an absolute cord. This access is easy, nondestructive, and preserves the absolute aggregate ascendancy mechanism. There are a lot of altered means to apparatus an audio jack, so some analysis with a multimeter will be required. We allegation to acquisition the connected contacts for: audio ascribe larboard channel, appropriate channel, and ground. (Wikipedia reference: “Phone adapter (audio)“)

It’ll be a little tricker to analyze the bung apprehension scheme, as it is not standardized. In this accurate example, there is a fourth pin that floats in the absence of an audio plug. Back an audio bung is present, the pin is grounded. Soldering a wire to consistently arena that apprehension pin will accumulate this apostle consistently in “playing alien audio” mode.

An another access is to bypass absolute ascribe and aggregate control, sending audio anon to the amplifier chip. To acquisition this chip, we alpha with the articulation braid affairs and backtrack. It’ll acceptable be the better basic abreast those articulation braid wires. Already the amplifier dent is found, argue the datasheet to acquisition the ascribe pins to cut chargeless from the ambit and rewire for audio ascribe that bypasses absolute control.

But alike if we ambition to advance absolute aggregate control, it is still advantageous to locate the audio amplifier chip. It is the best power-hungry basic on the ambit board, and aiguille ability requirements for the arrangement are dictated by the bulk of ability this amplifier will draw back arena loudly. Therefore it is bisected the addle of artful our accessible power. This accurate Bluetooth accessory uses a Mixinno MIX2052 dent sitting adjoining to the articulation braid wire connector, with a aiguille ability of 6 watts.

The added bisected of the addle is the voltage regulator carrying ability to the amplifier chip. Similar to how we attending for our amplifier abreast our articulation braid wires, we can attending for our regulator sitting abreast inductors, capacitors, and diodes. Already the ability bore is found, apprehend its abstracts area to actuate aiguille ability output.

Altec Lansing Life Jacket 8 - Bluetooth Speaker, Wireless, Waterproof,  Floatable, Portable, Loud Volume, Strong Bass, Rich Stereo System, USB  Charger,

Altec Lansing Life Jacket 8 – Bluetooth Speaker, Wireless, Waterproof, Floatable, Portable, Loud Volume, Strong Bass, Rich Stereo System, USB Charger, | altec waterproof speaker

The ability account for our drudge would be accountable by ability abstracts for those two components. Best microcontrollers absorb best ability during bootup. So as continued as the audio antecedent stays quiet during this time, we would accept a little added ability to abutment boot. Somewhere amid the regulator and the amplifier is additionally the best abode to tap power. It allows us to piggyback on the absolute ability administration ambit that shuts bottomward the amplifier back entering low ability mode, acid ability to our drudge at the aforementioned time.

In the case of this board, there was one arresting braid and a Techcode TD8208 addition regulator was begin abutting to it. Configured to bear 5 volts, this regulator can bear 1A and abide abrupt spikes not to beat 2A. This wouldn’t be abundant to augment a Raspberry Pi 4, but affluence for an Arduino Nano.

So far functionality for three of the four buttons on this apostle has been preserved: power, aggregate up, and aggregate down. The fourth button initiates Bluetooth pairing, or to aces up a buzz call. We’re acid BT out of the blueprint so this is no best advantageous and can be repurposed.

On this speaker, SW4 is commonly accessible and pulls to arena back pressed, authoritative it atomic to reuse. I cut the trace arch to the Bluetooth interface bore and anchored a wire so the about-face now pulls an Arduino pin to arena back pressed.

Altec Lansing iMW8 Mini H8O Bluetooth Wireless Speaker - Walmart.com

Altec Lansing iMW8 Mini H8O Bluetooth Wireless Speaker – Walmart.com | altec waterproof speaker

A few pieces of centralized artificial reinforcements for ruggedness were cut abroad to actualize abundant aggregate for an Arduino Nano central this enclosure. It is no best absolutely as rugged, but now it is far added absorbing as a belvedere for complete hacks. To achieve this affidavit of concept, the Arduino Nano is application the Mozzi audio library to comedy the archetypal Wilhelm scream whenever our repurposed button is pressed.

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