Monthly Archives: January 2020

Robert Brown Arduino dew controller build, step by step #13

Posted on January 25, 2020 by james

The remaining components in the case — the fan, USB connector, power socket and DHT22 are now fitted. I drilled the mounting holes for the fan and USB socket through the walls of the case as I wasn’t confident that … Continue reading →

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Robert Brown Arduino dew controller build, step by step #12

Posted on January 25, 2020 by james

The next step was to finish off the diodes on their fly leads, covering the exposed leads with plenty of heatshrink. I’m not at all convinced this is the best solution, but I’ve not come up with any better ideas … Continue reading →

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Robert Brown Arduino dew controller build, step by step #11

Posted on January 25, 2020 by james

I printed the lower section of the case, so it was time to fit the Nano to the PCB and put the PCB loosely in place so I could connect up the USB cable and see what happened. The good … Continue reading →

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Robert Brown Arduino dew controller build, step by step #10

Posted on January 25, 2020 by james

Temperature sensor plugs and sockets… My dissatisfaction with the 6P4C connectors led me to try to find other options for plugging these in. Initially 3.5mm stereo jack plugs such as these sprang to mind. However, Robert Brown himself explained to … Continue reading →

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Swimming, 21st January 2020

Posted on January 25, 2020 by james

The same set again, but I had a particularly poor night’s sleep and really didn’t feel as though I had any energy. I managed ten reps before failing on the first set with one more fail before completing it, but … Continue reading →

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Swimming, 20th January 2020

Posted on January 25, 2020 by james

Same set again today. This time I got to fifteen reps before my first fail in the 50m part of the set. I struggled with the 25s though, and couldn’t even complete ten.

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The end of an Era

Posted on January 20, 2020 by james

I must post the full story of these events some time because it beggars belief, but after an engineer visited on Friday we no longer have a “whirly wheel” electricity meter. I think in fact that it may well be … Continue reading →

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Swimming, 16th January 2020

Posted on January 20, 2020 by james

Same set again, and I did somewhat better than the previous time, failing on reps twelve and sixteen. I couldn’t manage many of the 25s though. My arms were just too tired.

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Robert Brown Arduino dew controller build, step by step #9

Posted on January 17, 2020 by james

For the final bit of PCB soldering, the MOSFETs and voltage regulator. The heatsinks I bought turned out to have small steel “legs” on when they arrived, which I didn’t initially realise was the case. I assume they’re there so … Continue reading →

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Robert Brown Arduino dew controller build, step by step #8

Posted on January 17, 2020 by james

Fly leads for the diodes attached. No diodes as yet. I’ll cut the leads to length and fit the diodes once I’ve printed the case and can test everything for size/placement.

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