Using a Bus Pirate to connect to a Raspberry Pi

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Scott Dixon describes on his website how he used the Bus Pirate to connect to a Raspberry Pi:

The other day I found myself with a Rasberry Pi that I wanted to use but I had forgotten my FTDI UART cable. What I did have is my Bus Pirate v3.6 and I found it was pretty easy to use it’s transpartent UART bridge macro to connect to the Pi.

More details at 0x20 homepage.

Get your own handy Bus Pirate for $30, including world-wide shipping. Also available from our friendly distributors.

Raspberry Pi web server using flask to control GPIOs

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Rui Santos from Random Nerd Tutorials writes:

In this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs. You can replace those LEDs with any output (like a relay or a transistor).
In order to create the web server you will be using a Python microframework called Flask.

More details at Random Nerd Tutorials homepage.

Check out the video after the break.

BeagleBone Black GPIO Benchmark

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Joonas Pihlajamaa from Code and Life writes, ” I’ve previously made a GPIO benchmark of Raspberry Pi 1 and 2, and have always wanted to see how BeagleBone Black would stack against the Pis. I recently got one so the obvious thing to do was to see how fast the little thing could go.  Turns out, the little thing needed a bit more work than the Pi, but the results were quite interesting.”

More details at Code and Life homepage.

Via the contact form.

Bringing a vintage telegraph into the digital age

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Kyle Gabriel writes:

I recently inherited a key on board (KOB) telegraph that my late grandfather used to practice Morse code with when he was a kid (Figure 1). A little bit of curiosity of how it would work and a little bit of displeasure from seeing it sit and collect dust, I began a journey to resurrect the old machine and develop some software to bring it into the digital age.

More details at Kyle Gabriel’s blog.

Check out the video after the break.