Month: September 2011
Solar cooking event
The fastest solar oven to assemble is probably the windshield reflector variant as shown below. All one needs is a reflector, a black pot with lid, an oven bag to act as a greenhouse and sunshine. It works and I have a blister to prove it. While this setup is sure to satisfy the vegetarian’s…
Read MoreOur geohash
In preparation for Software Freedom Day and the H4H stand here is the Geohash of the H4H address: kekhczvdbmvb. Geohashing converts a GPS location into a string. Latitude and longitude are expressed as two sequences of bits where each bit increases the precision by halving the interval a value falls into. For example, with latitude the first bit…
Read MoreSmart House Access Control – Breathing life into its electrons
Tuesday evening at the build we had lots of phun. I was nearing completion of the first prototype of Smart House Access Control (SHAC) and appreciated the assistance, debugging and moral support received from Andrew and Schalk to finish the first prototype. The “sophistication” gets described in a bit more detail in my video hereunder.…
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