Security expert Brian Varner said he was able to reset the card to allow an individual to vote multiple times, and also managed to program the card itself to cast multiple votes.He said: 'Anyone who knows how to program a chip card and purchases a simple $15 Raspberry Pi-like device, could secretly reactivate their voter card while inside the privacy of a voting booth.' There is a real issue in play here. The idea that every vote counts is at the heart of our democracy, so relying on outdated technology to count those votes can undermine confidence in the process that is central to our system of government.'
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A good majority of power tools in the average workshop are all about speed. Drills, grinders, and sanders all whizz along at thousands of revolutions per minute. Sometimes though, you need to do things slowly.
For that,The core of the build is an old washing machine, which supplies both the machine frame and its powerful universal motor. While this can be hooked directly to a power source and allowed to spin away, it’s far more useful with some speed control in place. For this, an Arduino is hooked up to a triac circuit with feedback, allowing the speed to be set just so for whatever operation you have in mind.
A set of speed-reducing pulleys helps further for getting down into the double-digit RPM while maintaining smooth rotation. There’s even a timer for extended operation, with parts salvaged from an old microwave.The machine is built with a large rotating platter on top. By placing a clean white screen on top, the platter is great for taking 360 degree photos of objects automatically.
Alternatively, by fitting a bowl and plough assembly, the machine can be used to mull green sand for casting purposes.It’s a versatile build that could be used for anything that needs rotation in the vicinity of 50 rpm. You could even play vinyl records on it if you were so inclined. Of course, if you’ve built a record player out of an old washing machine, Posted in Tagged. When you think of world-changing devices, you usually don’t think of the washing machine. However, making laundry manageable changed not only how we dress but how much time people spent getting their clothes clean. So complaining about how laborious our laundry is today would make someone from the 1800s laugh.
Still, we all hate the laundry and Andrew Dupont, in particular, hates having to check on the machine to see if it is done. So he made.How do you sense when the machine — either a washer or a dryer — is done? Andrew thought about sensing current but didn’t want to mess with house current. His machines don’t have LED indicators, so using a light sensor wasn’t going to work either. However, an accelerometer can detect vibrations in the machine and most washers and dryers vibrate plenty while they are running.The shows how he took an ESP8266 and made it sense when the washer and dryer were done so it could text his cell phone.
He’d already done a similar project with an Adafruit HUZZAH. But he wanted to build in some new ideas and currently likes working with NodeMCU. While he was at it he upgraded the motion sensor to an LIS3DH which was cheaper than the original sensor.Andrew already runs Node – RED on a Raspberry Pi, so incorporating this project with his system was a snap.
Of course, you could adapt the approach to lots of other things, as well. The device produces MQTT messages and Node – RED subscribes to them. The Pushover handles the text messaging. Node – RED has a graphical workflow that makes integrating all the pieces very intuitive. Here’s the high-level workflow:You might wonder why he didn’t just have the ESP8266 talk directly to Pushover. That is possible, of course, but in part 2, Andrew enumerates some good reasons for his design. He wants to decouple components in the system for easier future upgrades. And MQTT is simple to publish on the sensor side of things compared to API calls which are handled by the Raspberry Pi for now.Laundry monitoring isn’t a unique idea and everyone has, even.
If phone notification is too subtle for you, you can always. Posted in, Tagged,. The humble washing machine is an appliance that few of us are truly passionate about. They’re expected to come into our lives and serve faithfully, with a minimum of fuss. In the good old days, it was common for a washing machine to last for well over 20 years, and in doing so ingratiate itself with its masters. Sadly now while the simple mechanical parts may still be serviceable, the electronics behind the scenes can tend to fail. about giving a new brain to an old friend.The machine in question is known as an Oriole, and had served long and hard.
Washing Machine Card Hack Minecraft
Star wars galactic battlegrounds expanding fronts steam download. Logic chips and entire controllers had been replaced, but were continuing to fail. Instead, a replacement was designed to keep the machine operational for some time yet. Rather than relying on recreating the full feature set of the machine it was decided to eliminate certain things for simplicity. Settings for different fabric types or wash modes were eliminated, which is an easy choice if like most people all your washes are done in the same mode anyway. A water level sensor was found to be no longer functioning properly and was simpler to eliminate than repair.The brain is a PIC microcontroller, with an ESP12 acting as a webserver for monitoring and control.
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Additionally, a glass lens was taken from some former medical equipment and neatly installed in the control panel of the machine before an OLED display, giving the machine far more feedback than before. Control is still done with the machine’s original buttons. Temperature sensors were added as well to allow the machine to shut itself down in the event of an overheating problem. It’s all tied together on what looks to be a classic single-sided homebrew PCB.It’s a great project that shows it’s easy to bring modern electronic might to bear on vintage mechanical hardware, with great results. A washing machine lives to see another day, another load – and the landfill remains just that much lighter, to boot.We’ve seen controller builds for old washing machines before, too –Thanks to Tirotron for sending this in!Posted in Tagged,. Big ol’ motors are great when you need to get a big job done, but they can be expensive or hard to source new. However, there’s a source of big, fat, juicy motors right at home for most people – the garden variety washing machine.
These motors would usually require a special controller, howeverThe hack begins as Jerry decides to gut a Maytag MAH7500 Neptune front loader. Many projects exist that borrow the motor but rely on a seperately sourced variable frequency drive, so the goal was to see if the machine’s original controller was usable. The machine was first troubleshooted using a factory service mode, which spins the drum at a set speed if everything is working correctly.From there, it was a relatively simple job to source the machine schematics to identify the pinouts of the various connectors. After some experimentation with a scope and a function generator, Jerry was able to get the motor spinning with the original controller doing the hard work.It’s a simple hack, and one that relies on the availability of documentation to get the job done, but it’s a great inspiration for anyone else looking to drive similar motors in their own projects.
The benefit is that by using the original motor controller, you can be confident that it’s properly rated for the motor on hand.Perhaps instead of an induction motor, you’d rather drive a high powered brushless DC motor? Planet scanning mass effect 2. Posted in Tagged,. There’s an old saying that the only two things that are certain are death and taxes.
However, unless you live in a nudist colony, there’s probably also laundry. Darpan Bajaj and some friends were at a hackathon and decided to put their.Most of us here at Hackaday — and many Hackaday readers, judging by the comments — are a little suspicious about how much we really need everything attached to the Internet.
However, a washing machine is probably not a bad idea: you use it often, you need to know when it is done, and you probably don’t want to just sit and watch it spin. Besides, the intended installation is in a hostel where there are multiple machines and many potential users.Posted in, Tagged,. Ah laundry day. The washing machine, the dryer, the ironing, and the folding. No one is a fan of doing laundry, but we (I hope) are all fans of having clean clothing. Hackers, makers, and engineers are always looking for ways to make a tedious task a bit easier, and laundry definitely is one of those tedious tasks.
This week we’re checking out some of the best laundry projects on!We start with Professor Fartsparkles. Anyone who’s shared a washer and dryer with house or apartment mates will tell you how frustrating it can be. You bring your dirty laundry downstairs only to find the machines are in use. Wait too long, and someone has jumped in front of you. Laundrify fixes all that. Using a current sensor, Laundrify can tell if a machine is running.
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An ESP8266 monitors the current sensor and sends data up to the cloud – or in this case a Raspberry Pi. Users access this laundry as a service system by opening up a webpage on the Pi. The page includes icons showing the current status of each machine. If everything is in use, the users can join a queue to be notified when a machine is free.Next up is Jose Ignacio Romero with. Jose came upon a washer that mechanically was perfect. Electrically was a different story. The biggest issue was the failing mechanical timer, which kept leaving him with soapy wet clothing.
Washing machine timers boil down to mechanically timed multipole switches. They’re also expensive to replace. Jose did something better – he built an electronic controller to revitalize his washer. The processor is a PIC16F887. Most of the mains level switching is handled by relays.
Jose programmed the new system using, which is a ladder logic implementation for microcontrollers. For the uninitiated, ladder logic is a programming language often used on industrial Programmable Logic Controller (PLC) systems. The newly dubbed borg machine is now up and running better than ever.Next we have Michiel Spithoven with. In North America, most washing machines connect to hot and cold water supplies. Hot water comes from the home’s water heater. This isn’t the case in The Netherlands, where machines are designed to use electricity to heat cold water.
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Michiel knew his home’s water heater was more efficient than the electric heater built into his machine. Michiel hacked his machine green by building an automated mixing manifold using two solenoid valves and a bit of copper pipe. The valves are controlled by a PIC microprocessor which monitors the temperature of the water entering the machine. The PIC modulates the valves to keep the water at just the right temperature for Michiel’s selected cycle. Michiel has been tracking the efficiency of the new system, and already has saved him €97!Finally we have Mark Kuhlmann with.
Mark’s washing machine has a nasty habit of going off-balance and shutting down. This leaves him with soggy clothing and lost time re-running the load. Mark wanted to fix the problem without directly modifying his machine, so he came up with LaundrEsp. When the machine is running normally, a “door locked” light is illuminated on the control panel.
Card Washing Machine
As soon as the washer shuts down – due to a normal cycle ending or a fault, the door unlocks and the light goes out. Mark taped a CdS light detecting resistor over the light and connected it to an ESP8266. A bit of programming with, and Mark’s machine now let’s him know when it needs attention.If you want to see more laundry projects check out our brand new! If I missed your project, don’t take me to the cleaners!, and I’ll have your project washed, folded, and added to the list in a jiffy. That’s it for this week’s Hacklet. As always, see you next week. Same hack time, same hack channel, bringing you the best of!
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