Build A Standalone BASIC Interpreter

June 22, 2011 by Mike Szczys 19 Comments

Here’s a photo of the circuit board for the Maximite, a BASIC interpreter that [Geoff] built. The design idea was sparked when he was exploring the possibilities of the PIC32 family of chips. [Geoff] wanted to write about the hardware for a magazine article but needed an actual product to really show it off.

The design can utilize one of two microprocessors, a PIC 32MX795F512H or 32MX695F512H. The 32-bit chip has more than enough power to emulate BASIC, and even allows for floating point calculations. It’s VGA compatible and has a jack for a standard PS/2 keyboard, which makes it a standalone device. You can store programs on an SD card, or it can be interfaced with a computer via the USB-B port that you see next to the power jack. The microprocessor is a surface mount chip, but the rest of the components are through-hole, making this an easy kit to assemble. But if you’re not afraid to etch your own 2-layered PCBs there is board artwork available in [Geoff’s] download package.

[Thanks Bill]

RFID Smart Card Reader

May 17, 2011 by Caleb Kraft 9 Comments

[Navic] wrote in to show us his latest project. This is a portable smart card reader with a nice LCD display. he just happened to have a Basic Stamp 2px, smart card reader, and smart card reader/writer sitting around waiting to be used. What better use than a hand held smart card reader? Tossing the bits together in a nice project enclosure, [Navic] scoured the code available to him and pieced together what he needed. Now, when you slide in a card, you get a nice readout of the data on that pretty blue screen. Unfortunately, if you pull the card before the read is finished, everything just freezes.

You can see the final video after the break, and you can also see some in-progress videos linked in youtube. He asks if he should add the ability to write, and we say YES. Store that data, then write (duplicate) to another device.

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Introductions: 3 New Writers

July 8, 2010 by Caleb Kraft 65 Comments

We would like to introduce our new writers [Rachel Fee], [Greg Jacobs], and [Jacob Nahin]. They will be focusing on software reviews and tutorials in response to the daily requests for posts that don’t require that you be an electrical engineer to understand.

The Hack a Day community is growing very fast and we are happy to be a valued source of information to our readers.

Wiimote Controlled Hexapods

April 5, 2009 by Caleb Kraft 8 Comments

[youtube=http://www.youtube.com/watch?v=QsBj7koZ9lk]

The Phoenix is a very impressive hexapod robot platform. It has 18 servos which gives each leg 3 degrees of freedom and a BasicAtom Pro 28 for the brains. Interestingly, the design started as a personal project of a forum member on the Lynxmotion forums. It turned out so well, it has become an actual product. We’ve seen videos of these before and they always have some pretty fluid and organic seeming motion. They seem almost alive in this configuration. The only thing that might make them scarier would be to add Lou Vega’s decapitated head, well maybe that plus some really nice face tracking. In the video above, you can see where someone paired one up with a Wiimote for a pretty intuitive control scheme. Yeah, we realize the video is nearly a year old, how did we miss this one? You can see a video of it walking around after the break, and another controlled by a ps2 controller.

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Nickel-O-Matic

March 24, 2009 by Caleb Kraft 19 Comments

coins

[Mike] sent in this project. It’s a robot, designed to print on wooden coins while people watch. It was built to be in the iHobby Expo 08 in Chicago. The main movement is controlled by a BASIC Stamp2, while the ink jet system is run off of a Propeller. The entire system has 4 servos, 3 stepper motors, a DC motor, a hacked breast pump, an ink jet head, and 5 IR sensors. in case you missed that, it has a breast pump. We’re assuming that’s the part that picks up the wooden nickels with suction. He states that the project was meant to be entertaining, so there are lots of superfluous and inefficient actions as you can see in the video after the break. Great job [Mike].

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Parallax Christmas Light Show

December 19, 2008 by Caleb Kraft 16 Comments

[youtube=http://www.youtube.com/watch?v=btUh–1xbls]

[iboucher] wanted to do some crazy Christmas light choreography. Finding the cost of the off the shelf system to be way too much, he set out to build his own. After a visit to eBay to pick up some cheap 1 amp relays, he was ready to get started. Using a Basic Stamp2 that he had laying around, he was able to put together a fairly complete 16 port system. Great job [iboucher]

[via Hacked Gadgets]

A Basic Stamp Supercomputer

November 24, 2008 by Caleb Kraft 149 Comments

basic_super

Hobby super computer building isn’t something you hear about every day. This project is even more peculiar due to the fact that it is a supercomputer built with BASIC Stamps. [humanoido] posted some great pictures and detailed info about his project. We’re not completely sure what definition of supercomputer he’s using, but he states that it beats out the others in 10 categories. Those categories are: smaller, lighter, portable, field operable, runs on batteries, has greatest number of input/output, has greatest number of sensors/variety, lowest power consumption, lowest unit cost, and easiest to program. Those sound a little more like features than supercomputing categories to us, but that doesn’t detract from the fact that this is one cool jumble of wires.

You may be wondering what it does. Well, so are we. From what he says, it talks in Chinese and English and has a plethora of other input and output devices. It also displays status of its internal communications. Catch a video after the break.

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