A Battery To Add A Tingling Sensation To Your Tweets

Internet-connected sex toys are a great way to surprise your partner from work (even the home office) or for spicing up long-distance relationships. For some extra excitement, they also add that thrill of potentially having all your very sensitive private data exposed to the public — but hey, it’s not our place to kink-shame. However, their vulnerability issues are indeed common enough to make them regular guests in security conferences, so what better way to fight fire with fire than simply inviting the whole of Twitter in on your ride? Well, [Space Buck] built just the right device for that: the Double-Oh Battery, an open source LiPo-cell-powered ESP32 board in AA battery form factor as drop-in replacement to control a device’s supply voltage via WiFi.

Battery and PCB visualization
Double-Oh Battery with all the components involved

In their simplest and cheapest form, vibrating toys are nothing more than a battery-powered motor with an on-off switch, and even the more sophisticated ones with different intensity levels and patterns are usually limited to the same ten or so varieties that may eventually leave something to be desired. To improve on that without actually taking the devices apart, [Space Buck] initially built the Slot-in Manipulator of Output Levels, a tiny board that squeezed directly onto the battery to have a pre-programmed pattern enabling and disabling the supply voltage — or have it turned into an alarm clock. But understandably, re-programming patterns can get annoying in the long run, so adding WiFi and a web server seemed the logical next step. Of course, more functionality requires more space, so to keep the AA battery form factor, the Double-Oh Battery’s PCB piggybacks now on a smaller 10440 LiPo cell.

But then, where’s the point of having a WiFi-enabled vibrator with a web server — that also happens to serve a guestbook — if you don’t open it up to the internet? So in some daring experiments, [Space Buck] showcased the project’s potential by hooking it up to his Twitter account and have the announcement tweet’s likes and retweets take over the control, adding a welcoming element of surprise, no doubt. Taking this further towards Instagram for example might be a nice vanity reward-system improvement as well, or otherwise make a great gift to send a message to all those attention-seeking people in your circle.

All fun aside, it’s an interesting project to remote control a device’s power supply, even though its application area might be rather limited due to the whole battery nature, but the usual Sonoff switches may seem a bit unfitting here. If this sparked your interest in lithium-based batteries, check out [Lewin Day]’s beginner guide and [Bob Baddeley]’s deeper dive into their chemistry.

No Sex Please, We’re Robots

There was a time when technology would advance and launch debates over ethical concerns raised by the technology. Lately, however, it seems ethical debate is (I hope) in advance of the actual technology. Maybe that’s a good thing.

Case in point: A paper at Ethicomp 2015 from De Montfort University warns that having sex with robots may have negative effects on par with prostitution. You might think that this is an isolated academic concept, but apparently there is a conference titled The International Congress on Love and Sex with Robots. There’s even a 2008 book titled Love and Sex with Robots that is neither science fiction nor pornography.

Second case: Softbank has created a robot called [Pepper] that supposedly can understand human emotions. You know the license agreements you get with everything you buy that you don’t really read? Here’s a translation of part of the one that comes with [Pepper]: ” …owner must not perform any sexual act or other indecent behavior.

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Hackaday Links: January 18, 2015

A little while ago, we complained that there aren’t many projects using the Microview, a very cool Arduino and OLED thing that might be just too big for a ring. [Johannes] answered the call with a slot car track timer. He’s using an infrared distance sensor to count off lap times for his slot car track and a mini thermal printer to print out the times. Video right here.

Too many cables in your freshman college dorm room? Here’s the solution.

Our Internet travels frequently take us to strange auctions (we’re still looking for a US Mail truck, btw), but this one takes the cake. 24kt gold plates that were flown in space for five and a half years weighing 6,015.5 grams (212.191 oz). At the current price of $1277.06/oz, this auction should go for $270,980 USD. I’m 99% sure this was part of the Long Duration Exposure Facility, but I have no clue why this much gold was flown. Surely they could have done the same amount of science with only a hundred thousand dollars worth of gold, right?

So here’s this, but this isn’t your everyday, “put an Arduino in a vibrator” crowdfunding campaign. No, they actually have some great tutorials. Did you know that a stroke sensor looks like shag carpeting? [Scott] tells us, “I believe the founders are all graduate students getting PhDs in something or other, starting a sex toy company on the side.” More power to ’em.

Speaking of dildonics, the guy who coined that term will be giving one of the keynotes at the Vintage Computer Festival East this year. Yes, we’ll be there in full force.

Making A Touchless Vibrator With Reverse Engineering

Here’s one for the ladies (and men, we guess) out there.

[Beth] recently bought a LELO Lyla vibrator for herself, but found operating this wireless vibrator to be an exercise in mood-killing awkwardness. Wanting a more natural interface, she decided to reverse engineer a remote control vibrator. Here’s a cache; [Beth]’s blog has been up and down all day.

The LELO Lyla comes with a wireless control in the form of a neon pink remote. [Beth] thought this remote was a little clunky and felt like programming a VCR – something she doesn’t like in a sex toy. With the goal of improving this remote and allowing for a better user experience, [Beth] tore down this remote and began to build her own.

The new vibrator remote would have to be touchless – there’s nothing that kills the mood faster than mashing buttons. By using ultrasonic sensors, [Beth] would be able to control the intensity of her vibrator by simply waving her hand; a much more natural interface. With the control interface out of the way, the only thing left to do was to figure out how to control the business end of the vibrator.

The remote for a stock LELO Lyla comes with a MSP430 microcontroller and a 2.4 GHz CC2500 radio controlled over an SPI interface. Instead of disassembling the microcontroller and figuring out the firmware from scratch, [Beth] decided to sniff the SPI bus and make her own controller.

After attaching some 0.1″ headers to the stock remote and soldering a few wires to the microcontroller, [Beth] captured the SPI data with a Propeller dev board. By streaming the SPI traffic to a terminal, she was able to figure out exactly how the remote works and set out on building her own.

The new remote was built out of an Arduino Pro Mini, ultrasonic sensor, CC2500 radio and a four digit 7-segment display. After printing an enclosure, [Beth] had a very easy to use, hands free vibrator.

In the video after the break you can see [Beth]’s vibrator in action. She’s still looking for a few more ways to improve it such as predicting the movements of her hand with a phase-locked loop, but for now we’ll just tip our hat to [Beth] for a very awesome hack.

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Steampunk Vibrator


[Ani Niow] built this steam powered vibrator. It has a milled stainless steel shell with a brass motor structure. The motor is a Tesla turbine made from a stack of Dremel diamond cutoff wheels. This drives an off-center weight to create the vibration. She tested it using a pressure cooker as the steam source. It worked, but became so hot it had to be held using welding gloves. It works just as well with compressed air though. You can see the device at the Femina Potens Art Gallery in San Francisco or later this month at Maker Faire.

[via Laughing Squid]

UPDATE: [Ani] responds in the comments.