Author Archives: batchloaf

Ronan Byrne’s ultra low-cost brain-computer interface

Over the years, I’ve dabbled a bit in the creation of a so-called brain-computer interface (BCI). These systems take various forms, but the basic idea is to use technology to transfer information from the conscious mind of a human into … Continue reading

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H-bridge control example for Arduino Nano (ATmega328) – two phase-displaced square waves

This is the code: Example Output In the following oscilloscope screenshots, channel 1 (yellow) displays the signal from OC2 (pin D11) and channel 2 (blue) displays the signal from OC2B (pin D3). This is the output when OC2RB = 49, … Continue reading

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An offcut from the Fraktalismus pattern factory

This animation, which I created by accident while trying to do something else, struck me as eye catching. This is the complete C code used to generate video frames as individual PNM image files: I decided to render the frames … Continue reading

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Cafe Terrace at Starry Night

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€2 Robots in DIT

In this video, I chat with Kevin Chubb about his final-year project on ultra low-cost swarm robotics, here in DIT’s School of Electrical and Electronic Engineering. Kevin’s designing robots that can be built by hand from less than €2 worth … Continue reading

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A brief introduction to binary numbers…

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Can the PIC12F675 drive motors directly from its GPIO pins?

As I mentioned in my previous post, my project student Kevin Chubb is developing tiny ultra low cost robots using a PIC12F microcontroller. One of the things that’s great about PICs is that they can source and sink relatively high … Continue reading

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