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.

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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Join The Pen15 Club With A Vibrator Shield

For all you teledildonics enthusiasts, there’s a new Vibrator shield for the Arduino. It gets better: you can use the Pen15 shield with a Kinect for wholesome and natural fun at home.

Decency and a ‘safe for work’ style prevents us from putting everything we know on the front page, so keep reading after the break.

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