Why is it so hard to remember to use hand sanitizer between going into the store and driving back home? We tried hanging a bottle off the windshield wiper stalk, but it gets in the way and is hard to use and share with passengers. The ideal thing would be to have a hands-free pump in the car that reminds you to use it.
You don’t have to wire this to the ignition or anything — all you have to do is power it with the cigarette lighter (or straight-up outlet, if you’re lucky). Every time you turn the key, this pump powers up and performs a little song to remind you to use it. Electronically speaking, it couldn’t be simpler — an Arduino UNO reads your hand from the distance sensor and activates a servo that dispenses three short pumps of isopropyl alcohol. Check it out in action after the break.
Want a hands-free solution for the house? Just build something you can step on.
Continue reading “Automatic Sanitizer For Your Cupholder”
Hand sanitizer is the hot product of 2020, and it seems nobody can get enough. In the same way that touching a dirty tap takes the shine off washing your hands in a public bathroom, one wishes to avoid touching the hand sanitizer bottle entirely. To get around this, [makendo] whipped up a quick solution.
The solution consists of a 3D printed caddy which holds a typical bottle of hand sanitizer. This is affixed to a wall with either screws or double sided tape. A long string is then attached to the dispenser nozzle, and passes down to a foot pedal. By depressing the pedal, it pulls on the string, pulling down the dispenser nozzle and delivering the required sanitizer to the hands.
It’s by no means an advanced hack, but one that can be whipped up in a short time to make sanitizing one’s hands just that little bit more pain-free. If you’re still short on sanitizer, you might want to make your own. If you do, let us know how it goes. Otherwise, consider alternate methods of automating the delivery!
We once saw a Romeo and Juliet production where the two families were modern-day mob families with 3-piece suits and pistols. If they made King Richard III set in this week, the famous line might be: “Hand sanitizer, hand sanitizer, my kingdom for hand sanitizer!” Even if you have a supply stashed in your prepper cache, you have to touch the bottle so you could cross-contaminate with other users. Public places often have automatic dispensers to combat this, and now you can too. [Just Barran] shows the device in a video, you can see below.
Sourcing parts for projects is sometimes a problem, but right now we are betting the hand sanitizer will be the hardest component. Of course, the Internet is ripe with homemade brews that may or may not be effective based on beer, grain alcohol, or a variety of other base materials.
Continue reading “Automating Hand Sanitizer — If You Can Find Any”
If you have visited a hospital any time recently, you probably noticed quite a few automated hand sanitizer dispensers scattered throughout the hallways and in each patient’s room. Since hospital-acquired infections are a growing problem, there has been a push for all personnel to use these hand sanitizers regularly to lessen the likelihood of spreading disease.
In the most recent episode of his web show, [Ben Heck] took on the challenge of hacking one of these dispensers to use motion sensors in order to sense when hospital personnel are near, as well as to remind them that they should sanitize their hands on the way out.
He disassembled the dispenser to see how it operated, then worked on replacing the IR sensor pair with a set of motion detectors. He hooked the motion sensors to a Propeller board, which uses a separate add-on board for keeping time. Once the motion sensors are triggered, the passer-by is given a window of time before the machine notifies them to kindly sanitize their hands. All movements and sanitizer dispensing events are logged to an SD card connected to the controller, which can be reviewed to ensure policy compliance.
If you have about 20 minutes to spare it’s worth checking out, and if you are interested in more hand washing tech, check out this DIY hand dryer we featured a while back.