[Radu Motisan] Has entered a cool project into the Best Product portion of this year’s Hackaday Prize. It’s called an Open Source IoT Dosimeter. It has a Geiger tube for detecting radiation levels along with Internet connectivity and a host of other goodies.
Dubbed the KIT1, this IoT dosimeter can be used as a portable radiation detector with its Nokia 5110 LCD as an output or a monitoring station with Ethernet. With its inbuilt speaker, it alerts users to areas with excessive radiation. KIT1 is a fully functioning system with no need for a computer to get readouts, making it very handy and easy to use. It also has room for expansion for extra sensors allowing a fully customized system. The project includes all the Gerbers and a BOM so you can send it off to a PCB fab lab of your choice, solder on a few components, and have a fully functioning IoT Dosimeter. you don’t even need the LCD or the Ethernet; you can choose which output you prefer from the two and just use that allowing for some penny-pinching.
This is a great project and who doesn’t need an IOT Dosimeter these days?
Chemist and Biochemist [Thunderf00t] has shown us a really interesting video in which you can spot the wrist he broke 10 years ago using a thermal camera.
He was on an exercise bike while filming himself on a high-resolution thermal camera, As his body started to heat up he noticed that one hand was not dumping as much heat as the other. In fact one was dumping very little heat. Being a man of science he knew there must be some explanation for this. He eventually came to the conclusion that during a nasty wrist breaking incident about 10 years ago it must have affected the blood-flow to that hand, Which would go on to produce these type of results on a thermal camera while exercising.
Using thermal camera’s to spot fractures in the extremities is nothing new as it has the benefit of eliminating radiation exposure for patients, But it’s not as detailed as an X-ray or as cool as fluoroscopy and is only useful for bones near the surface of the skin. It’s still great that you can visualize this for yourself and even after 10 years still notice a significant difference.
Continue reading “Using A Thermal Camera To Spot A Broken Wrist”
[The BBC] reports Companies all over the world are reporting a new ransomware variant of WannaCry. this time it has taken out sensors monitoring the Chernobyl nuclear disaster site.
We have all heard of the growing problem of ransomware and how Windows XP systems seem especially susceptible to WannaCry and it’s variants which were originally zero day vulnerabilities stored up by the NSA then leaked by WikiLeaks. Microsoft did release a patch. It’s been everywhere in the media but it still seems that some people didn’t get the memo.
Ukrainian state power plants and Kiev’s main airport, among others, have been affected. Probably most interesting and scary of all is that Chernobyl monitoring stations have been taken out, and monitors have to take radiation levels manually for the moment.
It seems that most reports are coming from old Soviet Bloc states (Ukraine, Russia, and Poland), which raises the question of where the attacker is based. Kaspersky Lab is reporting that it’s believed the ransomware was a “new malware that has not been seen before” with a close resemblance to Petya. So as a result, the firm has dubbed it NotPetya.
NotPetya is spreading rapidly affecting companies all over the world with no signs of slowing just yet. Will we see an end to WannaCry variants any time soon.
[Update Thanks to [getrekt] , It now seems that this is fake ransomware which just destroys your data whether you pay or not.]
ScottCar is a go-kart for a special Kid and is [Alain]’s entry in this years Hackaday Prize. Will it race to victory?
The concept behind ScottCar is simple: There isn’t much out there for disabled kids when it comes to go-karts. [Alain Mauer] has an autistic son who isn’t quite capable of driving a Go-Kart as he would have trouble using pedals and brakes. He didn’t let that stand in his way, so he built a go-kart for his 11-year-old son. It incorporates an automatic braking system. In situations where the kart speeds up going down, brakes are automatically applied, slowing it down to a normal pace. It also features a remote emergency brake which would avoid crashes while supervising playtime. The braking system uses bike disc brakes controlled by an Arduino Nano. A Siemens Motor with a screw drive is what propels the vehicle, powered by a 12V Battery with a healthy 7.5Ah capacity.
The project is being released under GNU General Public License version 3, Will we be seeing ScottCar racing towards the Hackaday prize?
YouTuber [RimstarOrg], AKA Hackaday’s own [Steven Dufresne], shows how to make a DIY inductor for a specific inductance. This is obviously a great skill to learn as sometimes your design may call for a very accurate inductance that may be otherwise hard to find.
Making your own inductor may seem daunting. You will have to answer a few questions such as: “what type of core will I use?”, “how many turns does my coil need?”, or “how do I calculate these parameters to create the specific inductance I desire?”. [RimstarOrg] goes through all of this, and even has a handy inductance calculator on his website to make it easier for you. He also provides all the formulae needed to calculate the inductance in the video below.
Using a DIY AM Radio receiver, he demonstrates in a visual way how to tune an AM Radio with a wiper on his home-built coil. Changing the inductance with a wiper changes the frequency of the radio: this is a variable inductor,
This video is great for understanding the foundations of inductors. While you may just go to a supplier and buy yours, it’s always great to know how to build your own when you can’t find a supplier, or just can’t wait.
Continue reading “Design a Coil for a Specific Inductance”
[Kasyan TV] shows us how to make a really simple DIY induction soldering iron complete with DIY soldering tips.
This is a pretty cool project. Most of us are used to temperature controlled ceramic heating elements, but there are other ways to get those irons up to temperature. Using scraps from older, presumably broken, soldering irons and some pieces of copper and iron along with a thermocouple for temperature management, [Kasyan TV] manages to throw together an Inductively heated soldering iron. To insulate the coil from the iron they use Kapton tape. The video goes on to show how to make your own induction iron, although missing is a power supply. We are sure a quick eBay search for an induction heater module should bring up something suitable to power the iron, or you could just wait and watch the their next video that will go over power supplies. The soldering tips are simply made from thick copper wire sculpted into the correct shape.
There are advantages to using a soldering iron like this, for example they are pretty durable and will take a knock or two, Our concern is that magnetically sensitive parts may not be happy, and the iron might destroy what you are trying to build. Either way we’ve put the video below the break, so take a look.
Hackaday has featured a few different DIY soldering irons and some pretty cool DIY Soldering Stations over the years. What is your soldering iron of choice and why?
Continue reading “DIY Induction Soldering Iron”
Counterfeit parts are becoming increasingly hard to tell the difference from the real deal, the technology used by the counterfeiters has come on leaps and bounds, so even the experts struggle to tell the real product from a good fake. Mere fake branding isn’t the biggest problem with a counterfeit though, as ieee.com reports, counterfeit parts could contain malware or be downright dangerous.
Way back in 2014 the FBI charged [Marc Heera] with selling clones of the Hondata S300, a plugin engine module for Honda cars that reads sensors, and depending on their values can change idle speed, air-fuel mixture and a plethora of other car/engine related settings. What, might you ask, is the problem, except they are obviously not genuine parts? According to Honda they had a number of issues such as random limits on engine rpm and occasionally failure to start. While the fake Hondata S300 parts where just poor clones that looked the part, anything connected to an engine control unit brings up huge safety concerns and researchers have shown that through ECU access, they could hijack a car’s steering and brakes.
It’s not just car parts being cloned, remember the fake USB-to-serial chips of FTDI-Gate? Entire routers are also being cloned, which doesn’t sound too bad until you realise that the cloners could configure your internet traffic to be redirected through their network for snooping. In 2010 Saudi citizen [Ehab Ashoor] was convicted of buying cloned Cisco Systems gigabit interface converters with the intention of selling them to the U.S Dept of Defense. While nothing sinister was afoot in [Ashoor]’s case other than greed, these routers were to be deployed in Iraq for use by the Marine Corps networks. They were then to be used for security, transmitting troop movements and relaying intelligence from field operations back to HQ.
So who are the cloners and why are they doing it? It is speculated that some of them may be state funded, as there are a lot of countries who do not trust American silicon. Circuits are reverse engineered and find their way to the international market. Then just like the FTDI-Gate case, cloners want to make profits from others intellectual property. This also brings up another question, if there is a mistrust of American silicon, nearly everything is made in China these days so why should we trust anything from there? Even analog circuits can be made to spy on you, as you can see from the piece we recently featured on compromising a processor using an analog charge pump. If you want to defend yourself from such attacks, perhaps look at previous Hackaday Prize finalist, ChipWhisperer.