Obviously, we will never support cheating on exams, but sometimes the equipment is too tempting to keep it as it is. For [Neutrino], it is an old Casio calculator, which happens to have a perfect-sized solar panel that can replace 128×32 OLED. But since the monitor itself won’t do much, he decided to connect it to the ESP8266 and install it all in the calculator's shell, turning it into a cheating device worth spying on the Internet, including a hidden user The interface is controlled by magnets instead of physical buttons. (Video, embedded below.)
Editorial update: Please read our follow-up report on the copyright claims made against this project. Although it is generally believed that the project does not infringe copyright, the video above and embedded below is not available due to these statements. Currently, the original video is available through the Internet Archive.
To achieve the latter, [Neutrino] added two Hall-effect sensors and a reed switch to each end of the calculator. Placing a magnet near the reed switch (possibly hidden in the pen cap) will turn on the display, and placing another magnet near the Hall-effect sensor will navigate the display’s interface, supporting long, short, and multiple click inputs. Gestures. In order to obtain information via WiFi, ESP8266 connects to Firebase as a backend, allowing the setting of predefined content to be obtained, as well as the possibility of communicating with criminal partners through a simple chat program.
Since the main idea is to keep visible modifications to a minimum, one disadvantage is that additional external charging circuits are required to charge the additional batteries that power the entire system. But [Neutrino] also has a solution, just expose the two wires on the back, which can easily be mistaken for random solder spatter. Of course, requiring WiFi in some situations can also be tricky, so maybe you might want to consider upgrading your mobile network for yourself.
I may have replaced the OLED display with something that does not light up. It is not completely inconspicuous. It's a pity that he can't replace the calculator display with something that can display text.
Even better-an ab/w display with a screen saver, showing the lines of the solar panel!
If you are very smart with polarizers, you can see the text screen under the calculation screen as long as you wear special glasses with the correct filter.
You can remove the polarizing film directly from the LCD, can't you?
Explain why it was determined by motivated cheaters that you were wearing sunglasses to take the exam.
What's really cool is that if he can control the graphing calculator's screen, it will look completely normal.
OK! Maybe one day we will completely crack the damn high school and stop grading students based on their ability to remember information. In any case, they will completely forget the information after the exam. Thank this guy for really learning.
Shhh. Obviously, we only need to educate the public to work in the traditional 1950s-style business environment and discard any suggestions for changing things to better reflect the changes brought about by various technologies or eras or new generations.
Obviously, the only way to measure student performance is to ensure that they remember the most important things, such as formulas that will not change, and you can directly find or their ability to calculate things manually, rather than using evil assistive technologies such as calculators or Remember the most important things, such as the exact date of the historical event, rather than the background value of the event itself.
I have been working in public school K-12 IT for several years. During my tenure, I saw laptops, iPads and Chrome books entering the classroom-without any significant impact on teaching methods-all of which were used for children Instead of watching slides or videos on a classroom screen without headphones...progress!
Anything with a browser in the classroom is more distracting than a learning tool.
My favorite example is when I was talking to the curator at the HS library. Behind her was an assistant librarian who used a screen viewing tool to scan the library’s computer screen to execute the instructions. While talking with the librarian, the assistant called up a screen. A student was flipping through the screen of a woman in a underwear bra and pantry), and the librarian jumped to the next screen. I asked the assistant librarian to go back. She hung up the screen of the woman in underwear. I asked her if it was okay? She asked: "What do you mean?" I said, I think the school's usage policy stipulates that such images can be used on public computers in the library. She replied, "I don't know." I asked, why did you do this? On everyone's screen? She replied that she was looking for a broken computer.
It turns out that librarians are reluctant to enforce school district usage policies. They choose to enforce only those rules that make their job easier.
The limiting factor in education reform is teachers-they usually don't want to adopt anything that makes their job harder.
The hardest exam I ever took was the open-book exam in graduate school. I think it is quite time-consuming to write a challenging open-book test that can be completed in an hour or so, but I noticed that it does expand the distribution of scores and to those who know enough about the material to find and apply the correct equation Separate, fast enough concepts to complete those who did not complete the test. I doubt that most teachers are willing to devote this kind of time to test development, so it may become easier to try to distinguish between people who understand the material and people who don't understand the material through closed-book tests.
This is exactly my experience in graduate school.
My best professor took an open-book exam that could not be completed within the specified time. The goal is to measure performance. If people are completing the exam, you can’t do that because you don’t know how good they are. Of course, they are graded by curve, so the 57 you get may just be A.
The problem with scoring on the curve is that everyone's score is related to the best score in the room. I took those ball "curve scoring" exams in college. I didn't like it. My obsessive-compulsive disorder couldn't cope with it and couldn't complete the exam.
I have the same experience in my undergraduate organic chemistry and biochemistry courses. FWIW, the hardest final exam I ever took was the take-home final exam for my undergraduate organic chemistry course. I think it took nearly a week to include collaboration with other students (the professor encourages collaboration-"Which researcher will lock himself in a room without resources?"). I try to give my nursing students open-book exams as much as possible. They usually hate this... For some reason, they don’t like essay questions in pathophysiology—they have to correctly explain the basic physiological processes wrong, which means they Need to understand them.
Hmm...make it "physiological" instead of physiological...
When I was in college, the most annoying students were preparatory students. It seems that every time a professor introduces a new topic, they raise their hands and ask, "Will this take the exam?"
My university does not offer nursing degrees, so students strive to get the best grades to help them transfer to one of the better nursing courses.
Frustrated professors usually say the same thing every time-"Anything we discuss in class can be in the exam."
History is mainly about memory. The trend of not remembering is similar to the deterioration of American and world historical knowledge, which in turn has led to today's terrible political beliefs.
Do you remember (!?!) the man in the movie "Graduate" who can remember everything in an instant, but he has no analytical skills? Before he was eliminated, he entered Harvard Law School all the way.
In fact, I kind of like those exams, I just spit out all the knowledge in my head, and then I emptied new things. :)
He could have connected the charging pin to the screw hole. It needs more skills than me, but it will be invisible. Or let the charger wire into the calculator. To charge, you open the case and charge. No need to charge at school...
I thought I was reading Get Smart's plot ideas! The chief will be very moved.
Well, if someone wants to cheat in an exam, they will find a way.
This is a smart project, but when I was in school, I didn't have the time or resources to do this kind of thing. It's easier to study just for the exam. Managed to get my EE degree without cheating.
You are still sticking to that story, right? B^)
If I am good at cheating, I might get better results. I know my limits... and I am a terrible criminal. Honestly, it will be easier for all relevant people :-)
(I wish I could become an evil politician, I will become richer now...I just don’t have it)
"Easier to learn" Yes, this is always interesting: the real cheating is to program all the answers into your own brain. The teacher will never catch that kind of cheating!
Although I find that most of the time, cheating and hacking are not to save effort. The paradox is that they need more ingenuity and motivation, not just rote memorization and take their education seriously. Didn’t you waste an hour just to save five minutes? Or spend more money to build your own things instead of buying off-the-shelf things? In a way, this is not the point.
Perhaps the more difficult part is to find someone who doesn't need to cheat and he will give you the answer.
I made a very similar device in 2018. It also has an SSD1306-based OLED display with an ESP8266-01 bitbanging I2C, and handles a button. I created everything, from I2C bitbang driver, OLED driver, custom memory optimized font mapping, everything. I designed it to resemble a smart watch. Then I wrote a custom protocol and its server application on my android smart phone, using hotspots to provide text on my cheating "smart watch". It turns out that ESP consumes a lot of power, so after all the work was done, the project stopped on track because there was no suitable battery. I used ESP_NONOS_SDK.
After watching the video of this project, I really think I have no reason to reinvent the wheel by creating my own font mapping or driver. I often forget how easy it is to create anything nowadays with Arduino and all the libraries it provides.
This is why the engineer does not know how to drill a 5.99 mm hole. (You use a reamer).
Although the reamer does not drill. Otherwise a good irrelevant comment. Thank you.
I can tell you that you have never sharpened a drill or reamer in your life... Use your cock.
*Install 15/64 bit* What is the tolerance for this?
Why doesn't he hijack the button matrix as a means of navigation? Magnets can still be used to enable/disable.
I hope he will only use this to cheat his Intro to Electronics 101 course.
Adeptus Mechanius will not only approve them but will encourage him to install it in his limbs.
The accountant of ancient British Columbia took the counting tray and beans to take the exam.
Guy showed up with ABBACUS!
Does anyone have a Casio Nspire with CAS? I have good news to tell you.
Sorry, there is no MATLAB or Wolfram Alpha client for you.
If you "show your work these days" is not important, the shameless crowd sitting next to you will say that you are writing some kind of manifesto.
The mod with magnets on his Calc will make him blow up by the Air Marshal. (Also known as "remote detection")
Never underestimate the jealousy or stupidity of the crowd.
My suggestion: 1. Add a camera from the side. 2. Use some large, dark displays instead of the main display. 3. Replace the keyboard board with some navigation schemes and trigger on specific keys, otherwise it will simulate an ordinary calculator.
I had a sharp EL9300 in 1996, but no one realized that you can program it in BASIC. Thanks to this, I got some GCSEs.
TI85 has an error that allows uploading of Z80 code through the backup and recovery cable. A small program that simulates the factory reset screen and captures the hard reset button sequence, and more!
It is easy to share the calculation display and buttons between two devices. Let ESP8266 also power the calculator. The secret combination printer allows the ESP8266 to take over the display by turning off the calculator, just running the lines in parallel.
Ah, the old original Timex Datalink, which allowed me to pass some exams, especially physics and hydraulics. There may also be a drawer.
I have a teacher in the university who took a textbook consultation exam. I am the only one who has properly annotated the 3 volumes and got a small comment from him for this. Can't remember the score 🤣
If you know how to do it, you don't need to cheat :)
what! ! I remember a very similar project I liked... 13 years ago, I scraped off all the inside of the calculator, leaving only the shell and keyboard, replacing the typical 2-line green display screen, and Try to install arduino mini. The input uses the (resistance?) touch screen of some Chinese websites, which captures the keys and decodes them according to the coordinates, allowing the original keyboard of the calculator to be used. Of course, any real computing power has been deleted haha
You have never really made it work. My electronics and soldering skills are not the best, but I did delay a lot of time. Isn’t this what we wanted when we approached the finals? :P
I have a CASHO calculator with fake solar panels and "two-way power" or some similar text. It now appears that this is a good solution.
And Casio's copyright trolls are not that smart. https://torrentfreak.com/hacker-mods-old-calculator-to-access-the-internet-casio-files-dmca-complaint-200523/ Those sad trolls need real work.
If he can crack this, he can answer the test correctly.
Well, yes, but not actually.
My college calculator hacker is trading ti-89 (the old square version) for the viscera of ti-83. My university will not let you take any exams other than ti-83 or ti-83 plus. 89's can solve algebraic formulas, do derivatives and integrals, basically everything you need to review your answers and find small mistakes in big problems.
It is a bit difficult to put everything in the box, although the keyboard spacing is the same, but the different keys are in different places. At first I moved the correct keycap to the correct position, but it looked significantly different next to the real ti-83. Therefore, I used some printouts of ti-89 key positions to help me remember which key positions were incorrect.
I still finished the work and studied the materials, but my stress level dropped a lot during the exam. When you're working on an 18-step question that covers multiple pages, it's nice to be able to quickly check that you haven't messed up a little bit, which will cause the answer to fail and cost you 20 points.
A better way to use today's technology is to replace the screen with something you can use Pi Zero W to drive, and then run a modified TI simulator that can gradually extract the solution from Wolfram alpha.
People I know replicated Wolfram's "step-by-step" solution to complete all class assignments. When my professor designed some of the problems that Wolfram uses linear algebra to solve, some of these idiots were caught. Although they could not explain how or why they used the methods they had not learned to solve the problem, these idiots still copied the answers.
Cheating is not discussed here, but I think you may all be interested in the impact of technological change.
When I was studying for a degree in aerospace engineering at university, the scientific calculator just appeared. Since our tests are designed based on slide rules, I can usually use my trusted Dietzgen Log-Log (which I still own) to complete them. I was hit by the fact that students who use calculators can complete their homework faster and have time to go back and check their homework to eliminate stupid mistakes.
As a poor GI-bill student, I couldn't afford the new HP-35, which was nearly US$400 at the time (approximately US$2400 in today's US dollars). Even if Texas Instruments launched the SR-50 at a price of 170 US dollars (more than 1,000 US dollars equivalent), it is still beyond my ability. In the end, I found the 115 USD SR-50 and grabbed it. Because of it, my GPA has improved a lot, and I finally managed to graduate.
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