BLE Blue Tooth Low Energy

battery on remote device

A sample from the result of some BLE experiments.
Curie BLE Arduino

Infra Red Photography

A restart in a side interest in IR photography. The EXIF data for such pictures show camera type and exposure details. Error in uploading due to size is 2.4MB. fix this and try again.



A long-standing interest has been fractals and their generation. A favourite language at the moment is Haskell. Here are a few examples created by a Haskell program.

Scrambling Text

Sample text to be processed by scrambling program:

If a statue in the
park of a person on a horse has both front legs in the air ,
the person died in battle . If the horse has one front leg in
the air , the person died because of wounds received in battle ..
If the horse has all four legs on the ground , the person died
of natural causes .

Computer laptop battery charging

battery charging laptop linux

A recent adventure into investigating the status of laptop batteries took me down the path of GUI to display the charging situation. Here is a graph of the result.

Electronic calendars

Tue 29 May 2018 12:44:00 AEST

Calendar event Observations:
Some of my most wanted calendar events are generated by Eventbrite.
Eventbrite generates version 1.0 vcalendar files. Examine file with text editor.
Direct importing into iPhone {5C at least} does not work - the event is not entered into the calendar and the app appears to freeze.


from et

Arduino basic


Arduino programs

Here are three simple examples of Arduino code that can be executed on just about any Arduino with no extra hardware required.

a new article

article body
- can upload a file here Mike


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