Fresh hacks every day
This RFID card has a lot of nice features. But the one that stands out the most is the ability to learn the code from anther RFID tag or card. You can see that the board includes an etched coil to interact with an RFID reader. This is the sole source of power for the device, letting it pick up enough induced current from the reader to power the PIC 12F683 seen on the upper left of the board. … [Read more...]
Hone your fundamental understanding of computer systems by completing this online course called NAND to Tetris. The idea is to develop each fundamental unit that goes into making computer programs a reality. This starts with logic gates, which are put together into modules that eventually become a functioning computer. From there you need an operating system, a compiler, and eventually you'll be … [Read more...]
[Fall Deaf] built an Arduino based universal remote control system. It uses a shield which has both an IR receiver and transmitter. This gives it the tools to learn codes from your existing remotes and play them back in order to control the devices. This functionality is really nothing new, but we think the user interface he developed for the system is absolutely fantastic! Software is … [Read more...]
[manuka], aka [Stan Swan] is a teacher in New Zealand who enjoys enlightening his students on the wonders of electrical circuits. He primarily uses “snap connector” circuit kits, sold under the BrainBox name in NZ, for his interactive labs as they can be easily manipulated by pupils of all ages. While the kits are great, he says that the range of experiments they provide can be a bit … [Read more...]
Many of you may have seen these fun little toys in museums or possibly even in school. Instructibles user [brazilero2008] takes us through the process of constructing one on our own. Most of this toy are constructed from fairly household materials like foil, paper, straws etc. The fun part comes when you find the power supply. [brazilero2008] is using an air ionizer that he found at a rummage … [Read more...]
[Emily Daniels] has been teaching interactive electronics workshops geared towards children for some time now, recently holding a session that demonstrated how batteries work in a pretty novel fashion. She wanted to keep things safe and simple due to the class size, so she didn’t want to rely on using soldering irons for the demonstration. Instead, she showed the children how batteries … [Read more...]
We realize that not everyone out there holds a degree in electrical engineering or has the ability to tell NPN transistors apart from PNP transistors by taste alone, so we occasionally like to mention things that appeal to the beginners in the crowd. While there is a clear division between Arduino supporters and detractors, it is hard to deny that the devices have their place, and can be quite … [Read more...]
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