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Monthly Archives: August 2012
Easily manage I/O on a remote Arduino using two wires and the ExtraCore library
I’m always running out of the good pins in my Arduino projects. PWM pins are in particularly scarce supply and I sometimes even find myself short on analog inputs. Tricks like using shift registers or software PWM help, but they have limitations that aren’t always easy to work around. The open source ExtraCore library on [...]
Posted in Arduino
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Awsesome IR remote library from Ken Shirriff
http://www.arcfn.com/2009/08/multi-protocol-infrared-remote-library.html Easily get your Arduino to talk to your TV with just three components and this library. IR protocols are a little tricky even with a really good write up in Make Magazine recently. Ken’s library is going to make it a lot easier to experiment with. Send and receive IR remote codes in multiple [...]
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Digispark on Kickstarter
Digispark is a Kickstarter project that ends Sept. 10th. On August 24th they had reached $168,332 (of $5000 goal). It’s a great platform. People have been asking how it stacks up against ExtraCore. Digispark is a very complementary product to ExtraCore. Both are entries in “small, inexpensive Arduino Compatible.” But they live in different niches. [...]
Posted in Arduino, Kickstarter, Open Source Hardware
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Using i2c and a second Ardunio to increase your I/O capacity
I am working on a library for Ardunio that will easily allow someone to connect two Arduinos together with 2 wires and have one serve as extra I/O. For $15 and two I/O pins you can add an ExtraCore to a project to extend your I/O capacity for example. For digital only, of course a [...]
Posted in Arduino, Open Source Hardware
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Considering the next Kickstarter
I’m trying to transition from full time work “for the man” to full time Kickstarting and looking for my next Kickstarter project. I currently have several ideas. With two successful open source Kickstarter projects under my belt I am ready to tackle another challenge. Here are some of the ideas I have. What do you [...]
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ExtraCore V2 design
I was showing the ExtraCore around Maker Faire in California this year. The owner of Modern Device bought some on the spot to sell online. While we were talking he asked how much smaller it would be with a VQFN Atmega chip. He also wondered about adding a power regulator to the back. Now that [...]
Posted in Arduino, Open Source Hardware
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Inkscape Measure All Paths Extension
In order to get a rough idea how long something will take on a CNC or laser cutter I wanted to be able to measure all the vector lines and arcs in a file. I knew it was going to be possible to do in Inkscape. I looked around for an extension that that would [...]
Posted in Laser
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