Giant Kiwi Finished

I’ve finished mowing my kiwi in the paddock. It was marked out with survey grade GPS precision. It’s now just a matter of waiting for google earth to update their imagery.

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TARDIS build – Roof

I spent the whole day working on my TARDIS today and managed to get the roof completed. I was a little flexible with some of the dimensions so I could use 50mm thick timber for the step and…

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TARDIS build – Framing

I’ve put my four posts in the ground – it was really difficult to get them exactly square, but was worth doing properly.

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TARDIS build – The Plan

I’ve been thinking about building a TARDIS for a while and decided to actually do it over the christmas break. The plan is to use it to store beekeeping gear. I found a sketchup 3D model online which…

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Giant Kiwi – Doing it with GPS

Many, many years ago I marked out a giant Kiwi using tape measures and grids. Now, thanks to my newly built RTK GPS base station, I decided to try it with GPS. I first had to get my…

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New RTK GPS Base station

I’ve been running an RTK GPS Base station and feeding the data to rtk2go.com since early 2018.  I was initially using a UBlox Neo-M8T which only worked on L1 frequencies, but earlier this year I upgraded it to…

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U-Blox LEA-6H Precision

This is one of the many tests I’m doing to compare GPS/GNSS receivers. I’ve had this u-box LEA-6H unit for about five years. It was the GPS that came with the 3D Robotics ArduPilot that I’ve been using…

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How precise is a circa 1999 Garmin eTrex?

This is the first of the tests I’m doing to compare GPS/GNSS receivers. I got my first GPS unit, a Garmin eTrex in 2001 and I used it to Geocache. It’s sat unused for over 12 years, but…

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Measuring GPS (GNSS) Accuracy and Precision

With the recent technological advancements, I’ve recently become interested in RTK GPS and decided it would be fun to compare all the different GPS/GNSS (Global Navigation Satellite System) receivers I own. I ultimately plan to see how they…

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Powering and Grounding 1Wire DS18B20 with Digital IO Pins

Sometimes you find yourself in a situation where your Micro-controller has plenty of spare IO, very little power & ground connectors, and you want to add a 1Wire DS18B20 device as tidily as possible. The classic Dallas 1Wire…

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