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26 items tagged "calculator"
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10:01
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Hack a Day
You can leave the TI graphing calculator at home thanks to this web-based TI-83 and TI-84 emulator. As with pretty much all emulators, this depends on a ROM image from the actual hardware to work. But if you have one of the supported calculators (TI-83+, TI-83+ SE, TI-84+, or TI-84+SE) you can dump the image [...]
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16:00
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SecuriTeam
DAMN Hash Calculator v1.5.1 Local suffers from heap overflow vulnerability
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8:01
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Hack a Day
What happens when you combine a TI-84+ graphing calculator with an added bluetooth module, a 1 Watt Alfa wifi dongle, and a Parrot Wifi Quadcopter? You get a long range quadcopter that’s controlled from the TI-84+ directional pad. This TI-84+ looks like a standard issue school calculator, but [Owen] added an ATTiny13 microcontroller and a [...]
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6:09
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Hack a Day
This printing calculator is a thrift store find. [Todd Harrison] picked it up for a measly $3, and it still works! But the device is about twenty years old and he thinks it’s time to clean up the aging hardware. After cracking open the case he digs out some of the stuff that has made [...]
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8:01
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Hack a Day
If there’s one thing that will surely blind us, its reading resistor color bands. It doesn’t help that red looks exactly like orange, brown and black are indistinguishable, and different component manufacturers – for some reason – don’t use identical paints for coding their resistors. [Jeff] over at Gadget Gangster has been having the same [...]
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9:01
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Hack a Day
[Christopher] piped up in our comments on a recent post about using laptop touch pads in other things, noting that he had done this on his Ultimate Calculator Version 2. What he’s done is upgraded his TI-83+ calculator to house a number of improvements and customizations. It now has a stronger RGB backlight so he [...]
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6:01
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Hack a Day
[Chris] says that he’s been pretty busy lately, leaving little opportunity for hacking. However he did manage to find a little time to put together a small project that has occupied his to-do list for a while – a floppy drive music controller. We have seen hacks that use microcontrollers to actuate floppy drive motors [...]
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9:09
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Hack a Day
[Nathan]‘s son really loves numbers and counting, and one of his favorite things to do is add 1 to a calculator over and over again. Being the awesome dad that he is, [Nathan] built his son a counting box that has a 10-digit rotary switch and two arcade buttons to add and subtract. One goal [...]
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8:20
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Hack a Day
Calculators are a handy tool to have around in just about every application. We often take them for granted today, but even when I was a kid they were still sort of expensive devices that you put thought into buying. Illustrating just how far we have come is this awesome Relay Calculator brought to us [...]
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9:00
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Hack a Day
Just one look at that banner image and you’ve got to be thinking “that’s old”! This 1970′s era home made calculator used a 4-function calculator IC that was quite advanced for its time. The only problem is that the chip couldn’t do anything other than calcuations, which left it up to the maker of this [...]
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11:42
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Hack a Day
[Brandon Wilson] came up with a way to exploit the Play Station using a TI84 calculator. This uses the same PSGroove open source code that we looked at last week. That package was running on the Teensy, which is currently sold out (we’d guess because people want to run the exploit). There’s a video demonstration [...]
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12:39
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Hack a Day
What do you do after you make a BeagleBoard graphing calculator? [Matt] over at Liquidware Antipasto made a BeagleBoard Elastic R Cluster that fits in a briefcase. Ten BeagleBoards, are connected to each other though USB to ethernet adapters and a pair of ethernet switches connected to a wireless router. The cost for this cluster [...]
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10:00
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Hack a Day
[Syst3mX] emailed us about his Binary Calculator earlier this week and it almost slipped into the depths of our inbox. Luckily We noticed it in there today and thought we’d share. He wanted to be able to calculate binary values without having to jump through hoops or boot up his computer, so he built his [...]
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11:46
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Hack a Day
It looks like we missed the boat on this one but just in case you missed it everywhere else on the Internet, last Saturday [Matt Stack] introduced the world to a completely open source calculator. This marries two heartily tested open source projects; the R Project for Statistical Computing and the Beagleboard. The hardware side [...]
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7:51
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Hack a Day
[Michael Vincent] turned his TI-84 Plus into a spectrum analyzer. By running some assembly code on the device the link port can be used as an I2C bus (something we’ll have to keep in mind). After being inspired by the cell phone spectrum analyzer he set out to build a module compatible with the calculator [...]
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13:12
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Hack a Day
[Owen] got down and dirty by adding a touchscreen to his TI-84 graphing calculator. The dirty part is the z80 assembly code he wrote to use the linkport as a UART (assembly always makes us feel queasy). Once that was working he implemented some commands using an Arduino and then hooked up an Nintendo DS [...]
0day.today (was: 1337day, Inj3ct0r, 1337db)
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