For full recipes, please visit our recently launched Egyptian Cuisine Recipes web site.

OnStep Telescope Controller STM32 PCB and ESP32 SHC Kits


A while back, I completed a port of the open source OnStep Telescope Controller firmware to the STM32 Blue Pill ARM Cortex M3 32-bit MCU. Later, Dave Schwartz and myself designed a Printed Circuit Board (PCB) that makes building a controller a far easier task than before.

Here is a video of the completed PCB.

Cargo Cults of the Melanesian Islands


What happens when aboriginal people who are living a hunter/gatherer or farmer life style come face to face with 20th century technology and civilization too quickly? Their minds could not fathom the rest of earth's human civilization gradual progression over the past 5,000 or so years.

The people of Tanna island of Vanuatu suddenly woke up during World War II to the U.S. Navy establishing airfields, forward bases, and housing close to 250,000 people, with all the necessary support services, including telephone and cinemas.

OnStep Telescope Controller on Low Cost STM32



Over the winter, I worked with Howard Dutton, the author of OnStep Telescope Controller, to make it work with the low cost STM32 ARM Cortex M3 microcontrollers. This involved writing a hardware abstraction layer (HAL), so adding different architectures in the future would not be too hard, as it was.

Presentation: Incremental Backup For Linux



Yesterday, I gave a talk for the KWLUG on Incremental Backup For Linux. This is targeted towards home networks or small businesses using Linux, although I touched a bit on some enterprise considerations and technologies.

The solution I use relies on the dump and restore utilities for the ext4 filesystem, along with rsync from laptops.

The slides are attached below, as PDF. The meeting was recorded, and the video should appear here shortly.

Presentation: Forgotten History: Al-Sufi's Book of Fixed Stars



On Friday 27th of January, 2018, I gave a presentation at the KW RASC on Al-Sufi's Book Of Fixed Stars.

The book is the first illustrated pictorial star atlas, and was very influential for centuries after it was authored. It spread widely from central Asia, throughout the Middle East, and to Europe. It was translated into many languages.

Here is the presentation slides, and audio recording:

Installing Arduino IDE for STM32F103 boards


If you want to use the Arduino IDE for STM32F103 boards, you need to do the following.

The instructions are for Linux, but it is just downloading, extracting and renaming, so you can use similar steps for Windows of Mac OS/X.

Install the Arduino IDE

First, go to the Arduino web site

Select your platform, and download

Extract the IDE

tar xJvf ~/Desktop/arduino-1.8.5-linux64.tar.xz

Rename the directory


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