Author Archives: james

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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Robert Brown Arduino dew controller build, step by step #7

Posted on January 17, 2020 by james

All the pin headers that I’m going to use are now in and there aren’t too many holes left, especially as the two four-pin headers that are left won’t be used (the ones for the Bluetooth connection and the HTU21D … Continue reading →

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Robert Brown Arduino dew controller build, step by step #6

Posted on January 17, 2020 by james

I have now soldered all the resistors and capacitors to the PCB: Yes, I have put all the resistors the same way around. I can’t help myself 🙂 My favoured method for dealing with the resistors is to put a … Continue reading →

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Robert Brown Arduino dew controller build, step by step #5

Posted on January 17, 2020 by james

Time to start some actual construction! Whilst the PCB was uncluttered I decided the first job would be to solder on the headers for the Arduino, so I used the junior hacksaw to cut a couple of 15-pin lengths from … Continue reading →

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