Archive for 2016

RoboPIC 18F4550 Build Manual posted

Monday, April 25th, 2016

I finished the RoboPIC build manual and added it to the RoboPIC 18F4550 product page.

RoboPIC 18F4550 Robot controller @
(click on image for larger version)

I followed the build instructions to make sure they work well – and to take the photos for the manual :)

Introducing Hobbit, Elf’s younger Brother! (2WD Raspberry Pi based Robot)

Thursday, April 21st, 2016

I think Elf was getting lonely, so I built a younger brother for him.

Hobbit @
(Click on image for larger version)

Hobbit is meant to be an inexpensive, yet expandable Raspberry Pi based robot.

Hobbit is based on Pi Droid Alpha, which not only incorporates a motor driver, but also avoids the costly eight core RISC microcontroller used by RoboPi – while preserving a lot of 5V digital I/O and providing an eight channel ten bit analog to digital converter for connecting analog sensors.

I will keep updating the Hobbit article as I add more software and hardware features – and the Elf article will also be updated soon :)

New pure Python library for RoboPi

Tuesday, April 19th, 2016

I’ve been working on a new Python library for RoboPi.

Raspberry Pi 2 Model B Review @

A pure Python library will allow me to support more platforms for Python RoboPi programming, as I don’t have to generate a new Python wrapper for the C library every time I extend the firmware or C library.

I expect to have it uploaded by Monday – I had to post because I was happy that I finally finished writing it :-)

PiDroidAlpha bug fix uploaded

Thursday, April 14th, 2016

Raspberry Pi Zero Review @
(click on image for larger version)

I’ve uploaded a new version of (RoboPi compatible library) to the Pi Droid Alpha product page.

I was working on a new Pi Droid Alpha based robot robot, and I kept getting “too many files open” errors.

The problem turned out to be some SPI access code in the library that opened the SPI driver – but never closed it. Ooops.

My new easy PWM motor control for RoboPi and PiDroidAlpha Python libraries will also be published real soon now :)

Serving Raspberry Pi #4 in Servo April 2016

Monday, April 4th, 2016

Servo April 2016 - Serving Raspberry Pi #4 - Sensors
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This month, in “Serving Raspberry Pi #4” (pages 30-34) I discuss popular sensors that can be used on Raspberry Pi based robots.

I recommend Servo Magazine to anyone interested in robotics!

Two robot controllers for Raspberry Pi:



You can also find a Mikronauts ad on Page 46 of the April issue