We’ve featured loads of IR Arduino projects and they are all exciting and unique. The projects spring from a specific need or problem where a custom infrared remote control is the solution. [Rick’s] double feature we’re sharing in this article is no exception, but what is interesting and different about [Rick’s] projects is his careful and deliberate tutorial delivery on how to copy infrared remote codes, store the codes with a flavor of Arduino and then either transmit or receive the codes to control devices.
In the case of his space heater an Arduino was used to record and later retransmit the “power on” IR code to the heater before he awakes on a cold morning. This way his room is toasty warm before he has to climb out from under the covers, which has the added benefit of saving the cost of running the heater all night. Brilliant idea if you don’t have a programmable heating system. Maybe he will add a temperature sensor someday so it doesn’t have to run on strictly time.
A more complicated problem was controlling DVD playback software on his computer remotely. [Rick] says he sits at a distance when watching DVDs on his computer but his computer doesn’t have a remote control like a normal TV. Arduino to the rescue again! But this time he pulls out a Teensyduino because of its added feature of being able to emulate a keyboard and of course the computer DVD playback software accepts keyboard commands. Once again he used the “IRremote.h” library to record certain button codes from an old remote control before adding the retrieved codes to a Teensyduino setup and programmed to receive and decode the remote’s IR signals. The Teensyduino then maps the IR codes to known keyboard shortcuts and transmits the simulated keyboard shortcut commands to the computer via its USB cable where the DVD playback software recognizes the key commands.
As always [Rick] shares all his libraries and sketches on his blog so follow the above links to download the files. You will not miss a single step if you follow his excellent videos below. Plus, here are some other ways and other tools for using an IR remote with your Arduino and cloning an infrared remote.
Continue reading “Primer Tutorials for Arduino IR Remote Cloning and Keyboard Simulation”
One might think the last thing the world needs is for The Great Old Ones to rise from their near-death sleep deep in the Pacific ocean, and begin again their reign over Earth. Actually, the last thing the world needs is another Arduino clone. Here’s this one. Fittingly, it’s called the Ktuluino.
Actually, this isn’t yet another attempt to build an Arduino clone that adds nothing to existing designs; it’s just [Jeff]’s attempt at PCB design. He needed something to practice on, so why not something that ends in -uino?
The board is just about as simple as Arduinos come – an ATMega328P is the brains of the outfit and also the most expensive component, closely followed by either the power jack or the header pins. As an exercise in PCB design, we’ll give this a thumbs up, but this could also be used for an ‘introduction to soldering’ workshop at a hackerspace, or alternatively a coaster.
Despite what this module says on the case, it’s certainly not official Saleae Logic Analyzer hardware. [Jack Andrews] picked up this Chinese knockoff on eBay for about $18. When plugged into the computer the Saleae software picks it up as the official hardware. But [Jack] has seen other knockoffs which have a jumper to select between Saleae cloning and USBee cloning so he found a way to switch software with this dongle.
He pulled the board out of the case and discovered a Cypress CY7C68013A microcontroller on a poorly-soldered board (imagine that). This is an 8051-compatible processor that includes USB functionality. There’s also an EEPROM on the bottom of the board which stores the VID/PID pair identifying it as Saleae Logic hardware. The trick to getting this working with the USBee software is to change that pair. [Jack] managed to do this without an external programmer. He uninstalled the Saleae driver and installed a Cypress driver. Then he wrote a bit of code for the CY7C68013A to rewrite the EEPROM and flashed it via the USB connection. Now the dongle enumerates as USBee Logic Analyzer hardware.
Here’s an open source RFID cloner design that is about the same size as a standard RFID key card. It doesn’t need a battery to capture key codes, just the magnetic field generated by an RFID reader. You can see the functionality demonstrated in the video after the break. By holding the bottom button as the cloner is moved in range of the RFID reader, the microcontroller goes into learning mode. Now just hold up the card you wish to clone and the LED just above the buttons will light up when it has captured the code. Now the device will act just as the original RFID tag did.
This was developed by [Ramiro], the same person who built the barebones RFID emulator we saw a few days ago. When researching that story we complete skipped over this gem. He’s posted a ton of information on the tag itself. It doesn’t look like he has any PCBs or kits left, but the schematic and code are available for download. You should check in on the design considerations section because it discusses the read/write function that isn’t built into the current version. That’s why you see some add-on components on the hardware used in the demo video.
It seems like this is a lot more user-friendly than the last RFID spoofer we looked at.
Continue reading “Passive RFID tag cloning”
Instructables user [dustinandrews] just took the wraps off his latest creation, a DIY Arduino Pro Mini clone.
Actually, to call it an clone is technically incorrect – while he aimed to produce a tiny Arduino-compatible board, his goal was not to replicate the Mini’s design. Instead, he developed a 1” x 1” board from scratch, covering the construction process in great detail.
When you are working with components this tiny, the only reasonable way to get things done is via solder reflow. He walks through the steps he took to produce the board, which should be enough to guide those doing reflow for the first time through the process without too much trouble.
The end result looks pretty nice, and when he puts it up side by side against the Arduino Pro Mini, his board can definitely hold its own. While his design lacks an on-board power regulator and reset button, he does provide two more analog I/O pins than the Mini, along with several other enhancements.
Sometimes emulators just don’t cut it when you want to play a vintage game. Like it or not, some people enjoy the nostalgia of playing old games on the actual hardware for which it was designed.
[Callan] wrote in to share a method he has been using to make some of his own NES game cartridges from ROM dumps in order to play them on an honest to goodness NES console.
He starts out with a 190 in 1 game cartridge, where he found a neat Famicom game never released in the US. He decided he would patch the ROM he found on the multicart in order to have an English menu, and then create his very own cartridge from the image. He discusses how to identify which EPROM chips you will need in order to construct your cartridge, as well as some helpful ways of finding a donor cart that has a similar enough board to house your components.
[Callan] also provides a quick walkthrough of erasing and burning your new EPROM chips, before discussing some post-soldering troubleshooting steps you might need to take before your game will work properly.
While we can’t comment on the legality of these game clones, we still think it’s pretty awesome.
Be sure to check out his site for a far more in-depth discussion of the process if this is something that interests you.
[Gregory] wrote in to share his most recent project, an FPGA clone of the PC Engine/Turbografx 16 console. You may remember him from last year, when we talked about his SEGA Genesis FPGA clone. He just couldn’t leave well enough alone, and decided to resurrect yet another 16-bit machine in FPGA form.
He has been working on the project for about three months now, but he has been making very quick work of getting everything up and running. As of a few weeks ago, the project was in a pretty unstable alpha stage, but after pounding away at some bugs, he is now able to render any game he pleases.
The clone uses an Altera DE1 board just like his previous builds, and he has been able to emulate all three if the main chips that make up the Turbografx logic board. He has yet to work on the Programmable Sound Generator, but that is slated for the near future. While the FPGA currently stores ROMS in its flash memory, he has plans to add the ability to load games from an SD card.
Keep reading to see a pair of videos showing his console clone in action, it’s impressive.
Continue reading “FPGA-based Turbografx 16 clone”