Tag Archives: USB

A Survey of Open Hardware Debugging & Analysis Tools

One of the biggest brags of open source is that it reduces the cost of achieving a result to 1/5 or 1/10 of a commercial solution.

Of course, open hardware developers usually don’t include research & development costs. If someone wants to build their own project, the realization that development tools can cost far more than the small project they produce can come as a shock. Why would someone want to spend a thousand dollars on a tool to debug a ten dollar project?

Nathan Willis’ LinuxCon talk comes by way of LWN.net. Details of open source¬†oscilloscopes, logic analyzers and more after the jump.

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Arduino Leonardo

The new board from Arduino, the Leonardo, is pretty much an Uno except that it doesn’t have a dedicated chip for USB communication. The serial port runs in the same chip that runs your sketches (the ATmega32U4). This means that if you reset the board you also reset the USB connection. However, because the serial port is virtual it means that the board can run as a (HID) keyboard or mouse.

Arduino Leonardo

Freetronics LeoStick

The simpler physical wiring means that the Leonardo is cheaper ($20), but it also means that there’s less flash memory and some of the pins have changed, so Uno shields might not work with the Leonardo.

If the Uno footprint is just too big there’s the LeoStick from freetronics ($30).

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Crowd Funding Dump

Kickstarter has subdivided their “technology” category into “open software” and “open hardware” which makes my job a little faster. There aren’t very many things in it…but I suppose that also makes my job a little faster.

Summary:

Details after the jump.

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Open Source USB-Based Power Supply

Normally power supplies are AC-powered, and big, so they aren’t portable. They also tend to have more power and/or features than you need for most tasks. Is that fact ruining your life?¬†Open source hardware to the rescue!

You can find this little marvel, and fund it, at Kickstarter.

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