[typo]’s mother gets around with a walker. It’s a great assistive device until she has to lift the heavy thing up into her car. Noting that this was a little cruel he did as any hacker would and found a way to automate the process.
The build is pretty cool. She had to give up her passenger seat, but it’s a small price to pay for independence. He removed the door paneling on the passenger side. Then he welded on a few mounting points. Next he had to build the device.
The well-built device has a deceptively simple appearance. The frame is made from CNC milled panels and the ever popular aluminum extrusion. It uses a 12V right angle drive and some belting to lift the chair. There’s no abundance of fancy electronics here. A toggle switch changes the direction of the motor. There are some safety endstops and an e-stop.
Now all she has to do is strap the walker to the door. She picks the direction she wants the lift to go and presses a button. After which she walks the short distance to the driver’s seat, and cruises away.
Visually impaired people know something the rest of us often overlooks: we actually don’t see with our eyes, but with our brains. For his Hackaday Prize entry, [Ray Lynch] is building a tongue vision system, that will help blind people to see through one of the human brain’s auxiliary ports: the taste buds.
Continue reading “Hackaday Prize Entry: Tongue Vision”
Researchers at Tufts University are experimenting with smart thread sutures that could provide electronic feedback to recovering patients. The paper, entitled “A toolkit of thread-based microfluidics, sensors, and electronics for 3D tissue embedding for medical diagnosis”, is fairly academic, but does describe how threads can work as pH sensors, strain gauges, blood sugar monitors, temperature monitors, and more.
Conductive thread is nothing new but usually thought of as part of a smart garment. In this case, the threads close up wounds and are thus directly in the patient’s body. In many cases, the threads talked to an XBee LilyPad or a Bluetooth Low Energy module so that an ordinary cell phone can collect the data.
Continue reading “Smart Sutures”
We’re in the last few weeks for entries in the 2016 Hackaday Prize — specifically the challenge is to show off your take on assisstive technology. This is a hugely broad category and I’ve been thinking about it for a while. I’m sure there’s a ton of low-hanging fruit that’s not obvious to everyone. This would be a great time to hit up the comments below and leave your “hey, I always thought someone should make…” ideas. I’m looking forward to reading them and it might just inspire someone to spend the next couple weeks hammering out a prototype to enter.
For me, it’s medication. I knew this can be a challenging problem having gone through a few cycles of prescription medicines in my life. But recently I helped out a family member who was suddenly on many medications taken on eight different times a day — including once, twice, three, and six times per day. This was further compounded by sleep deprivation (having to set alarms at night to take the medicine) and drowsy/woozy effects from the medicine. I can tell you first hand that this is really tough for anyone to deal with and it’s incredibly easy to make a mistake or not be able to remember if you took a dose.
Pill Organizers Do No More or Less
We’ve seen a number of pill organizers before and that’s what I reached for in this case. However, that organizer only had four slots for each day. I didn’t hack it (other than writing on the doors with a Sharpie for when to take each) but even if there were added buttons or LEDs I’m not convinced this would be a marked improvement.
What you see above is my proposal for the medicine problem. Smartphones have become ubiquitous and the processing power and cameras of even budget phones are mind blowing. I think it is entirely possible to write an app that uses computer vision to recognize pills and sync them with the schedule. This may mean whipping the phone out of your pocket, or designing a pill box that has a phone stand next to it (saying that makes me think of using RPi and a Pi camera). Grab your pills and validate them under the camera.
Useful Augmented Reality
The screen of the phone would use augmented reality to overlay information about the pills it sees — you know, like Pokemon Go but in a way that enriches your life. ‘pills, catch ’em all!’ — new pills can be learned of the fly, delivering the user to a screen to identify the pill and the dosing schedule. Taking the validation picture will record when the medicine was taken, and the natural extension of this systems is a pharmacy’s ability to push your dose schedule to your account when you pick up the prescription. A stretch goal would be keeping an eye out for interactions.
This is all very much like how hospitals do it — they’re scanning bar codes on the packaging and the patient bracelet and recording it. This would be an easier user experience and quite frankly I think companies already in this space (like Snapchat and Niantic) could whip this up in a single-day hackathon no problem.
Is it the perfect system? Maybe not. But there is no perfect system or we’d be using it by now. We need you, the world’s talent pool, to step up and make life a little better. Do it in prototype form by October 3rd and you’ll be eligible for one of twenty $1000 cash prizes and a chance at winning the Hackaday Prize. But even if you don’t build a single thing, one idea could be the spark that lets others change the world for the better. So let’s hear it!
For most of us, our touch-screen smartphones have become an indispensable accessory. Without thinking we tap and swipe our way through our digital existence, the promise of ubiquitous truly portable computing has finally been delivered.
Smartphones present a problem though to some people with physical impairments. A touchscreen requires manual dexterity on a scale we able-bodied people take for granted, but remains a useless glass slab to someone unable to use their arms.
LipSync is a project that aims to address the problem of smartphone usage for one such group, quadriplegic people. It’s a mouth-operated joystick for the phone’s on-screen cursor, with sip-and-puff vacuum control for simulating actions such as screen taps and the back button.
To the smartphone itself, the device appears as a standard Bluetooth pointing device, while at its business end the joystick and pressure sensor both interface to a Bluetooth module through an Arduino Micro. The EAGLE board and schematic files are available on the project’s hackaday.io page linked above, and there is a GitHub repository for the code.
Technology is such a part of our lives these days, and it’s great to see projects like this bridge the usability gaps for everyone. Needless to say, it’s a perfect candidate for the Assistive Technology round of the Hackaday Prize.
Hard as it is to imagine, lie detectors have been sold as children’s toys for a number of years. A simple battery-operated device clipped to your fingers and would show the conductivity of your skin. The concept — which is probably not very reliable — observers that lying causes you to imperceptibly sweat which causes a sudden increase in your skin’s conductivity. These cheap toys would have a meter and you’d note the meter deflection to determine if the subject was lying.
You can debate the amusement value of interrogating your friends, perhaps, but they were pretty common and still exist (including some that shock you if they detect you are lying). Seventeen-year-old [BuildIt] has his own modern take on this classic device using — what else? — an Arduino. You can see a video of the device below.
Continue reading “Arduino Detects Pants on Fire”
Rearchers of the Harvard Medical School built a 2 feet by 4 feet (61 x 122 cm) large petri-dish to visualize the evolution of bacteria. Their experiment induces mutations in E. coli bacteria by exposing them to gradually increasing concentrations of antibiotics.
Continue reading “Mega-Plate Petri-Dish Lets You Watch The Evolution Of Bacteria”